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  #1   Report Post  
Mitchell Ingram
 
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I have a Onkyo TX DS595 and would like to know what value capacitors to use
to swap out the factory ones to add whatever improvement it would make. Also
what else do I need to change over while I'm in there?

Mitchell



  #2   Report Post  
TCS
 
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On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram wrote:
I have a Onkyo TX DS595 and would like to know what value capacitors to use
to swap out the factory ones to add whatever improvement it would make. Also
what else do I need to change over while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying an
onkyo then? Why don't you design your own equipment?
  #3   Report Post  
TCS
 
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On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram wrote:
I have a Onkyo TX DS595 and would like to know what value capacitors to use
to swap out the factory ones to add whatever improvement it would make. Also
what else do I need to change over while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying an
onkyo then? Why don't you design your own equipment?
  #4   Report Post  
TCS
 
Posts: n/a
Default Power Supply Mods

On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram wrote:
I have a Onkyo TX DS595 and would like to know what value capacitors to use
to swap out the factory ones to add whatever improvement it would make. Also
what else do I need to change over while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying an
onkyo then? Why don't you design your own equipment?
  #5   Report Post  
John A. Weeks III
 
Posts: n/a
Default Power Supply Mods

In article

, TCS wrote:

On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram
wrote:
I have a Onkyo TX DS595 and would like to know what value capacitors to use
to swap out the factory ones to add whatever improvement it would make. Also
what else do I need to change over while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying an
onkyo then? Why don't you design your own equipment?


That is a heck of an attitude. You must really limp badly with that
size chip on your shoulder.

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps. Just like an auto mechanic who puts accessories on his or her
car doesn't have to design thier own car, an audio tweaker doesn't have
to design thier own amplifiers.

-john-

--
================================================== ==================
John A. Weeks III 952-432-2708
Newave Communications
http://www.johnweeks.com
================================================== ==================


  #6   Report Post  
John A. Weeks III
 
Posts: n/a
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In article

, TCS wrote:

On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram
wrote:
I have a Onkyo TX DS595 and would like to know what value capacitors to use
to swap out the factory ones to add whatever improvement it would make. Also
what else do I need to change over while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying an
onkyo then? Why don't you design your own equipment?


That is a heck of an attitude. You must really limp badly with that
size chip on your shoulder.

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps. Just like an auto mechanic who puts accessories on his or her
car doesn't have to design thier own car, an audio tweaker doesn't have
to design thier own amplifiers.

-john-

--
================================================== ==================
John A. Weeks III 952-432-2708
Newave Communications
http://www.johnweeks.com
================================================== ==================
  #7   Report Post  
John A. Weeks III
 
Posts: n/a
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In article

, TCS wrote:

On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram
wrote:
I have a Onkyo TX DS595 and would like to know what value capacitors to use
to swap out the factory ones to add whatever improvement it would make. Also
what else do I need to change over while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying an
onkyo then? Why don't you design your own equipment?


That is a heck of an attitude. You must really limp badly with that
size chip on your shoulder.

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps. Just like an auto mechanic who puts accessories on his or her
car doesn't have to design thier own car, an audio tweaker doesn't have
to design thier own amplifiers.

-john-

--
================================================== ==================
John A. Weeks III 952-432-2708
Newave Communications
http://www.johnweeks.com
================================================== ==================
  #8   Report Post  
Geoff Wood
 
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"John A. Weeks III" wrote in message

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?

geoff


  #9   Report Post  
Geoff Wood
 
Posts: n/a
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"John A. Weeks III" wrote in message

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?

geoff


  #10   Report Post  
Geoff Wood
 
Posts: n/a
Default Power Supply Mods


"John A. Weeks III" wrote in message

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?

geoff




  #11   Report Post  
TCS
 
Posts: n/a
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On Mon, 5 Jan 2004 16:34:07 +1300, Geoff Wood -nospam wrote:

"John A. Weeks III" wrote in message


All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?


Don't you understand? He'll put "magic caps" on the power supply and it will
most certainly transform the onkyo into a $20,000 piece of equipment.
As all audiofiles know, any modification no matter how pointless, will always
improve the sound, at least until the next modification. However, modifying
an onkyo's power supply isn't as effective as magic cables, especially thousand
dollar s/pdif cables.
  #12   Report Post  
TCS
 
Posts: n/a
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On Mon, 5 Jan 2004 16:34:07 +1300, Geoff Wood -nospam wrote:

"John A. Weeks III" wrote in message


All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?


Don't you understand? He'll put "magic caps" on the power supply and it will
most certainly transform the onkyo into a $20,000 piece of equipment.
As all audiofiles know, any modification no matter how pointless, will always
improve the sound, at least until the next modification. However, modifying
an onkyo's power supply isn't as effective as magic cables, especially thousand
dollar s/pdif cables.
  #13   Report Post  
TCS
 
Posts: n/a
Default Power Supply Mods

On Mon, 5 Jan 2004 16:34:07 +1300, Geoff Wood -nospam wrote:

"John A. Weeks III" wrote in message


All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?


Don't you understand? He'll put "magic caps" on the power supply and it will
most certainly transform the onkyo into a $20,000 piece of equipment.
As all audiofiles know, any modification no matter how pointless, will always
improve the sound, at least until the next modification. However, modifying
an onkyo's power supply isn't as effective as magic cables, especially thousand
dollar s/pdif cables.
  #14   Report Post  
John A. Weeks III
 
Posts: n/a
Default Power Supply Mods

In article , Geoff Wood
-nospam wrote:

"John A. Weeks III" wrote in message

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?


Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?

Perhaps you live in a world where you can have a pile of Krell in
every corner of every room of your mansion. But please make room
in the hobby for other folks, espeically those who have entry level
equipment pending making thier fortune in the world.

-john-

--
================================================== ==================
John A. Weeks III 952-432-2708
Newave Communications
http://www.johnweeks.com
================================================== ==================
  #15   Report Post  
John A. Weeks III
 
Posts: n/a
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In article , Geoff Wood
-nospam wrote:

"John A. Weeks III" wrote in message

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?


Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?

Perhaps you live in a world where you can have a pile of Krell in
every corner of every room of your mansion. But please make room
in the hobby for other folks, espeically those who have entry level
equipment pending making thier fortune in the world.

-john-

--
================================================== ==================
John A. Weeks III 952-432-2708
Newave Communications
http://www.johnweeks.com
================================================== ==================


  #16   Report Post  
John A. Weeks III
 
Posts: n/a
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In article , Geoff Wood
-nospam wrote:

"John A. Weeks III" wrote in message

All commercial audio equipment is built with compromises and trade-offs.
A common trade-off is price versus quality. Another one is parts count.
I can easily see a case where Onkyo would have like to have used certain
higher quality parts, but ended up using something less to hit some
marketing price point. One never knows what kind of improvement could
be made by changing out low quality capacitors and putting in low noise
op-amps.


So, you change the PSU and it still sounds like an Onkyo instead of being
transformed into a Krell or whatever. What do you modify next, or do you
just say stuff it and buy something better, maybe 'used', in the first
place ?


Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?

Perhaps you live in a world where you can have a pile of Krell in
every corner of every room of your mansion. But please make room
in the hobby for other folks, espeically those who have entry level
equipment pending making thier fortune in the world.

-john-

--
================================================== ==================
John A. Weeks III 952-432-2708
Newave Communications
http://www.johnweeks.com
================================================== ==================
  #17   Report Post  
Barry Mann
 
Posts: n/a
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In , on 01/05/04
at 10:08 AM, "John A. Weeks III" said:

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?


Perhaps you live in a world where you can have a pile of Krell in
every corner of every room of your mansion. But please make room in
the hobby for other folks, espeically those who have entry level
equipment pending making thier fortune in the world.


I started by "fussing" with things. I had a very limited budget and
could not afford to burn anything up. While I was successful in not
burning anything up, didn't make any stunning advances in the science
of hifi, I learned a lot.

To Mitchell,

Power supply capacitor mods can often improve things, but you should
read about power supply design before jumping into things. Yes,
increasing the size of the power supply filter capacitors might improve
things, but making them too large may introduce a rectifier failure
problem that will catch you by surprise.

Capacitor mods in the signal path will probably yield more noticeable
results, but they may present physical challenges because the better
sounding capacitors are usually larger than the ones they replace.

I doubt if you will be able to find someone who has a collection of
modifications for your unit. There are thousands of models on the
market. One could argue that most of them could be improved in some way
if enough time and money were invested in the effort.

Certain models have acquired a cult status and both underground and
commercial "mods" are available. In some cases the units are better off
after the mods are removed. Some of the mods improve the sound at the
expense of reliability. A home brew unreliable unit will loving be
branded "cranky", but an unreliable commercial unit is a disaster for
everyone.

Read, have fun and learn. It's the tinkerers who ultimately advance the
science.

-----------------------------------------------------------
spam:
wordgame:123(abc):14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15
13 (Barry Mann)
[sorry about the puzzle, spammers are ruining my mailbox]
-----------------------------------------------------------

  #18   Report Post  
Barry Mann
 
Posts: n/a
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In , on 01/05/04
at 10:08 AM, "John A. Weeks III" said:

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?


Perhaps you live in a world where you can have a pile of Krell in
every corner of every room of your mansion. But please make room in
the hobby for other folks, espeically those who have entry level
equipment pending making thier fortune in the world.


I started by "fussing" with things. I had a very limited budget and
could not afford to burn anything up. While I was successful in not
burning anything up, didn't make any stunning advances in the science
of hifi, I learned a lot.

To Mitchell,

Power supply capacitor mods can often improve things, but you should
read about power supply design before jumping into things. Yes,
increasing the size of the power supply filter capacitors might improve
things, but making them too large may introduce a rectifier failure
problem that will catch you by surprise.

Capacitor mods in the signal path will probably yield more noticeable
results, but they may present physical challenges because the better
sounding capacitors are usually larger than the ones they replace.

I doubt if you will be able to find someone who has a collection of
modifications for your unit. There are thousands of models on the
market. One could argue that most of them could be improved in some way
if enough time and money were invested in the effort.

Certain models have acquired a cult status and both underground and
commercial "mods" are available. In some cases the units are better off
after the mods are removed. Some of the mods improve the sound at the
expense of reliability. A home brew unreliable unit will loving be
branded "cranky", but an unreliable commercial unit is a disaster for
everyone.

Read, have fun and learn. It's the tinkerers who ultimately advance the
science.

-----------------------------------------------------------
spam:
wordgame:123(abc):14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15
13 (Barry Mann)
[sorry about the puzzle, spammers are ruining my mailbox]
-----------------------------------------------------------

  #19   Report Post  
Barry Mann
 
Posts: n/a
Default Power Supply Mods

In , on 01/05/04
at 10:08 AM, "John A. Weeks III" said:

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?


Perhaps you live in a world where you can have a pile of Krell in
every corner of every room of your mansion. But please make room in
the hobby for other folks, espeically those who have entry level
equipment pending making thier fortune in the world.


I started by "fussing" with things. I had a very limited budget and
could not afford to burn anything up. While I was successful in not
burning anything up, didn't make any stunning advances in the science
of hifi, I learned a lot.

To Mitchell,

Power supply capacitor mods can often improve things, but you should
read about power supply design before jumping into things. Yes,
increasing the size of the power supply filter capacitors might improve
things, but making them too large may introduce a rectifier failure
problem that will catch you by surprise.

Capacitor mods in the signal path will probably yield more noticeable
results, but they may present physical challenges because the better
sounding capacitors are usually larger than the ones they replace.

I doubt if you will be able to find someone who has a collection of
modifications for your unit. There are thousands of models on the
market. One could argue that most of them could be improved in some way
if enough time and money were invested in the effort.

Certain models have acquired a cult status and both underground and
commercial "mods" are available. In some cases the units are better off
after the mods are removed. Some of the mods improve the sound at the
expense of reliability. A home brew unreliable unit will loving be
branded "cranky", but an unreliable commercial unit is a disaster for
everyone.

Read, have fun and learn. It's the tinkerers who ultimately advance the
science.

-----------------------------------------------------------
spam:
wordgame:123(abc):14 9 20 5 2 9 18 4 at 22 15 9 3 5 14 5 20 dot 3 15
13 (Barry Mann)
[sorry about the puzzle, spammers are ruining my mailbox]
-----------------------------------------------------------

  #20   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"John A. Weeks III" wrote in message

In article

, TCS wrote:

On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram
wrote:
I have a Onkyo TX DS595 and would like to know what value
capacitors to use to swap out the factory ones to add whatever
improvement it would make. Also what else do I need to change over
while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying
an onkyo then? Why don't you design your own equipment?


That is a heck of an attitude. You must really limp badly with that
size chip on your shoulder.


IME he's speaking quite factually.

All commercial audio equipment is built with compromises and
trade-offs.


In many cases these have zero audible consequences.

A common trade-off is price versus quality. Another one
is parts count. I can easily see a case where Onkyo would have like
to have used certain higher quality parts, but ended up using
something less to hit some marketing price point. One never knows
what kind of improvement could be made by changing out low quality
capacitors and putting in low noise op-amps.


Actually I do, and I have some bench tests and DBTs to back my claims up
with.

What it comes down to is that replacing defective parts can have immense
audible benefits. OTOH, if its not broke, it probably doesn't need fixing.

How many capacitor upgrade articles have you read that did two very basic
things:

(1) Determined that the parts that were replaced were NOT defective (i.e.,
tested them)

(2) Demonstrated their benefits in a fair and unbiased way? (i.e., a good
DBT or relevant bench testing)

I come up with zero.

Just like an auto
mechanic who puts accessories on his or her car doesn't have to
design their own car, an audio tweaker doesn't have to design their
own amplifiers.


A lot of after-market so-called automotive performance improvements are
questionable as well. However, the percentage of snake oil in automotive is
far less than that of audio.





  #21   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"John A. Weeks III" wrote in message

In article

, TCS wrote:

On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram
wrote:
I have a Onkyo TX DS595 and would like to know what value
capacitors to use to swap out the factory ones to add whatever
improvement it would make. Also what else do I need to change over
while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying
an onkyo then? Why don't you design your own equipment?


That is a heck of an attitude. You must really limp badly with that
size chip on your shoulder.


IME he's speaking quite factually.

All commercial audio equipment is built with compromises and
trade-offs.


In many cases these have zero audible consequences.

A common trade-off is price versus quality. Another one
is parts count. I can easily see a case where Onkyo would have like
to have used certain higher quality parts, but ended up using
something less to hit some marketing price point. One never knows
what kind of improvement could be made by changing out low quality
capacitors and putting in low noise op-amps.


Actually I do, and I have some bench tests and DBTs to back my claims up
with.

What it comes down to is that replacing defective parts can have immense
audible benefits. OTOH, if its not broke, it probably doesn't need fixing.

How many capacitor upgrade articles have you read that did two very basic
things:

(1) Determined that the parts that were replaced were NOT defective (i.e.,
tested them)

(2) Demonstrated their benefits in a fair and unbiased way? (i.e., a good
DBT or relevant bench testing)

I come up with zero.

Just like an auto
mechanic who puts accessories on his or her car doesn't have to
design their own car, an audio tweaker doesn't have to design their
own amplifiers.


A lot of after-market so-called automotive performance improvements are
questionable as well. However, the percentage of snake oil in automotive is
far less than that of audio.



  #22   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"John A. Weeks III" wrote in message

In article

, TCS wrote:

On Sun, 4 Jan 2004 16:19:54 -0500, Mitchell Ingram
wrote:
I have a Onkyo TX DS595 and would like to know what value
capacitors to use to swap out the factory ones to add whatever
improvement it would make. Also what else do I need to change over
while I'm in there?


You know more than onkyo's engineering staff? Why are you modifying
an onkyo then? Why don't you design your own equipment?


That is a heck of an attitude. You must really limp badly with that
size chip on your shoulder.


IME he's speaking quite factually.

All commercial audio equipment is built with compromises and
trade-offs.


In many cases these have zero audible consequences.

A common trade-off is price versus quality. Another one
is parts count. I can easily see a case where Onkyo would have like
to have used certain higher quality parts, but ended up using
something less to hit some marketing price point. One never knows
what kind of improvement could be made by changing out low quality
capacitors and putting in low noise op-amps.


Actually I do, and I have some bench tests and DBTs to back my claims up
with.

What it comes down to is that replacing defective parts can have immense
audible benefits. OTOH, if its not broke, it probably doesn't need fixing.

How many capacitor upgrade articles have you read that did two very basic
things:

(1) Determined that the parts that were replaced were NOT defective (i.e.,
tested them)

(2) Demonstrated their benefits in a fair and unbiased way? (i.e., a good
DBT or relevant bench testing)

I come up with zero.

Just like an auto
mechanic who puts accessories on his or her car doesn't have to
design their own car, an audio tweaker doesn't have to design their
own amplifiers.


A lot of after-market so-called automotive performance improvements are
questionable as well. However, the percentage of snake oil in automotive is
far less than that of audio.



  #23   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?


Not only that, but what if his so-called improvement makes him THINK it
sounds better? Isn't that in many cases the same thing as sounding better?
After all, the human auditory system was never designed to be simply a
measuring device.


  #24   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?


Not only that, but what if his so-called improvement makes him THINK it
sounds better? Isn't that in many cases the same thing as sounding better?
After all, the human auditory system was never designed to be simply a
measuring device.


  #25   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he wants
to do these mods as part of his high school electronics class as his
term project? Who cares if it sounds better or not. Haven't you ever
heard of someone wanting to do something for the educational value,
for the experience, or just because of no reason at all, just fun?


Not only that, but what if his so-called improvement makes him THINK it
sounds better? Isn't that in many cases the same thing as sounding better?
After all, the human auditory system was never designed to be simply a
measuring device.




  #26   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

To Mitchell,

Power supply capacitor mods can often improve things, but you should
read about power supply design before jumping into things. Yes,
increasing the size of the power supply filter capacitors might improve
things, but making them too large may introduce a rectifier failure
problem that will catch you by surprise.


Very true. Increasing the size isn't always a benefit. In some cases,
increasing the size will also increase the ESL, which could actually
introduce more ripple into the system.


  #27   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

To Mitchell,

Power supply capacitor mods can often improve things, but you should
read about power supply design before jumping into things. Yes,
increasing the size of the power supply filter capacitors might improve
things, but making them too large may introduce a rectifier failure
problem that will catch you by surprise.


Very true. Increasing the size isn't always a benefit. In some cases,
increasing the size will also increase the ESL, which could actually
introduce more ripple into the system.


  #28   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

To Mitchell,

Power supply capacitor mods can often improve things, but you should
read about power supply design before jumping into things. Yes,
increasing the size of the power supply filter capacitors might improve
things, but making them too large may introduce a rectifier failure
problem that will catch you by surprise.


Very true. Increasing the size isn't always a benefit. In some cases,
increasing the size will also increase the ESL, which could actually
introduce more ripple into the system.


  #29   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he
wants to do these mods as part of his high school electronics class
as his term project? Who cares if it sounds better or not. Haven't
you ever heard of someone wanting to do something for the
educational value, for the experience, or just because of no reason
at all, just fun?


Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?


  #30   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he
wants to do these mods as part of his high school electronics class
as his term project? Who cares if it sounds better or not. Haven't
you ever heard of someone wanting to do something for the
educational value, for the experience, or just because of no reason
at all, just fun?


Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?




  #31   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he
wants to do these mods as part of his high school electronics class
as his term project? Who cares if it sounds better or not. Haven't
you ever heard of someone wanting to do something for the
educational value, for the experience, or just because of no reason
at all, just fun?


Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?


  #32   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not everyone has unlimited budgets like some of the audio snobs that
seem to hang around here. Perhaps the original poster is a high
school student, and the Onkyo was handed down to him, and now he
wants to do these mods as part of his high school electronics class
as his term project? Who cares if it sounds better or not. Haven't
you ever heard of someone wanting to do something for the
educational value, for the experience, or just because of no reason
at all, just fun?


Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?


  #33   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?


Those of us that "know better" probably won't be motivated by the power of
suggestion. Take a look at the recent (ie. recurring) amplifier threads in
RAC to see that people do indeed think they hear a difference when a
difference demonstrably does not exist (or if the difference is a product of
something else). So, for these people, is there truly a difference between
hearing a difference by power of suggestion rather than by actual acoustical
differences?


  #34   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?


Those of us that "know better" probably won't be motivated by the power of
suggestion. Take a look at the recent (ie. recurring) amplifier threads in
RAC to see that people do indeed think they hear a difference when a
difference demonstrably does not exist (or if the difference is a product of
something else). So, for these people, is there truly a difference between
hearing a difference by power of suggestion rather than by actual acoustical
differences?


  #35   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?


Those of us that "know better" probably won't be motivated by the power of
suggestion. Take a look at the recent (ie. recurring) amplifier threads in
RAC to see that people do indeed think they hear a difference when a
difference demonstrably does not exist (or if the difference is a product of
something else). So, for these people, is there truly a difference between
hearing a difference by power of suggestion rather than by actual acoustical
differences?




  #36   Report Post  
Mark Zarella
 
Posts: n/a
Default Power Supply Mods

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound better?


Those of us that "know better" probably won't be motivated by the power of
suggestion. Take a look at the recent (ie. recurring) amplifier threads in
RAC to see that people do indeed think they hear a difference when a
difference demonstrably does not exist (or if the difference is a product of
something else). So, for these people, is there truly a difference between
hearing a difference by power of suggestion rather than by actual acoustical
differences?


  #37   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound
better?


Those of us that "know better" probably won't be motivated by the
power of suggestion. Take a look at the recent (ie. recurring)
amplifier threads in RAC to see that people do indeed think they hear
a difference when a difference demonstrably does not exist (or if the
difference is a product of something else). So, for these people, is
there truly a difference between hearing a difference by power of
suggestion rather than by actual acoustical differences?


The closest I can come is the study of medical placeboes. Some of them seem
to work a very high percentage of the time. Unfortunately, what placeboes
lack is staying power. Six months later the once-happy patient tends to
notice that he's still sick or sicker, dies, or whatever.

Thus, an audio manufacturer that sells placebo equipment may have higher
initial customer satisfaction than one that sells a product that actually
makes a difference. However, that satisfaction level will tend to disappear,
while the product that makes a difference will probably keep on making the
same difference.

This can lead to higher intermediate-term profits for the placebo
manufacturer because he might get a repeat sale based on the higher initial
satisfaction, while the poor guy whose product actually makes a difference,
gets no new sales from the customer who remains happy.



  #38   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound
better?


Those of us that "know better" probably won't be motivated by the
power of suggestion. Take a look at the recent (ie. recurring)
amplifier threads in RAC to see that people do indeed think they hear
a difference when a difference demonstrably does not exist (or if the
difference is a product of something else). So, for these people, is
there truly a difference between hearing a difference by power of
suggestion rather than by actual acoustical differences?


The closest I can come is the study of medical placeboes. Some of them seem
to work a very high percentage of the time. Unfortunately, what placeboes
lack is staying power. Six months later the once-happy patient tends to
notice that he's still sick or sicker, dies, or whatever.

Thus, an audio manufacturer that sells placebo equipment may have higher
initial customer satisfaction than one that sells a product that actually
makes a difference. However, that satisfaction level will tend to disappear,
while the product that makes a difference will probably keep on making the
same difference.

This can lead to higher intermediate-term profits for the placebo
manufacturer because he might get a repeat sale based on the higher initial
satisfaction, while the poor guy whose product actually makes a difference,
gets no new sales from the customer who remains happy.



  #39   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound
better?


Those of us that "know better" probably won't be motivated by the
power of suggestion. Take a look at the recent (ie. recurring)
amplifier threads in RAC to see that people do indeed think they hear
a difference when a difference demonstrably does not exist (or if the
difference is a product of something else). So, for these people, is
there truly a difference between hearing a difference by power of
suggestion rather than by actual acoustical differences?


The closest I can come is the study of medical placeboes. Some of them seem
to work a very high percentage of the time. Unfortunately, what placeboes
lack is staying power. Six months later the once-happy patient tends to
notice that he's still sick or sicker, dies, or whatever.

Thus, an audio manufacturer that sells placebo equipment may have higher
initial customer satisfaction than one that sells a product that actually
makes a difference. However, that satisfaction level will tend to disappear,
while the product that makes a difference will probably keep on making the
same difference.

This can lead to higher intermediate-term profits for the placebo
manufacturer because he might get a repeat sale based on the higher initial
satisfaction, while the poor guy whose product actually makes a difference,
gets no new sales from the customer who remains happy.



  #40   Report Post  
Arny Krueger
 
Posts: n/a
Default Power Supply Mods

"Mark Zarella" wrote in message

Not only that, but what if his so-called improvement makes him THINK
it sounds better? Isn't that in many cases the same thing as
sounding better? After all, the human auditory system was never
designed to be simply a measuring device.


Why not just say ommmmm, until we think our audio systems sound
better?


Those of us that "know better" probably won't be motivated by the
power of suggestion. Take a look at the recent (ie. recurring)
amplifier threads in RAC to see that people do indeed think they hear
a difference when a difference demonstrably does not exist (or if the
difference is a product of something else). So, for these people, is
there truly a difference between hearing a difference by power of
suggestion rather than by actual acoustical differences?


The closest I can come is the study of medical placeboes. Some of them seem
to work a very high percentage of the time. Unfortunately, what placeboes
lack is staying power. Six months later the once-happy patient tends to
notice that he's still sick or sicker, dies, or whatever.

Thus, an audio manufacturer that sells placebo equipment may have higher
initial customer satisfaction than one that sells a product that actually
makes a difference. However, that satisfaction level will tend to disappear,
while the product that makes a difference will probably keep on making the
same difference.

This can lead to higher intermediate-term profits for the placebo
manufacturer because he might get a repeat sale based on the higher initial
satisfaction, while the poor guy whose product actually makes a difference,
gets no new sales from the customer who remains happy.





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