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Robert Morein
 
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Default Dyna PAS-3X ???

Can anyone give an opinion of the phono stage of a Dyna PAS-3X preamp with
Bose 301 speakers?

I need you opinions, because I am going to put the Dyna in a plywood box
with the Garard turntable with handles and hinge that I can tote to the
local high school gym. The school has a dance club where the kids are
actually interested in Big Band, so I've been asked to be a "DJ."



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Sugarite
 
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Default Dyna PAS-3X ???


"Robert Morein" wrote in message
...
Can anyone give an opinion of the phono stage of a Dyna PAS-3X preamp with
Bose 301 speakers?

I need you opinions, because I am going to put the Dyna in a plywood box
with the Garard turntable with handles and hinge that I can tote to the
local high school gym. The school has a dance club where the kids are
actually interested in Big Band, so I've been asked to be a "DJ."

This will work fine, but you haven't asked about the amplifier.
Do you even know what it does?


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Scott Dorsey
 
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Default Dyna PAS-3X ???

Robert Morein wrote:
Can anyone give an opinion of the phono stage of a Dyna PAS-3X preamp with
Bose 301 speakers?


The PAS-3X is not really all that good a preamp stock, but it is a good
platform to build a good preamp. In the seventies there were a huge set
of articles in the Audio Amateur on modifications for the PAS-3, and they
are well worth looking into.

I can't stand the Bose 301s.

I need you opinions, because I am going to put the Dyna in a plywood box
with the Garard turntable with handles and hinge that I can tote to the
local high school gym. The school has a dance club where the kids are
actually interested in Big Band, so I've been asked to be a "DJ."


By all means, then, use the Dyna. It's certainly good enough for that
application.

You may want to have two turntables so you can have one record cued up
while another is playing, though. Kids will get very restless between cuts.

In the twilight of the swing era, when discotheques were first starting up
in Europe and DJs were still called "disquieres," the way to do this was
with a small console designed for broadcast remotes.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
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William Sommerwerck
 
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Default Dyna PAS-3X ???

You didn't ask, but I would suggest you place the 301s in the path of a nearby
steamroller. Watching them get crushed will give you far more pleasure than ever
listening to them will.

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Carl Valle
 
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Default Dyna PAS-3X ???


"Scott Dorsey" wrote in message
...
Robert Morein wrote:
Can anyone give an opinion of the phono stage of a Dyna PAS-3X preamp

with
Bose 301 speakers?


The PAS-3X is not really all that good a preamp stock, but it is a good
platform to build a good preamp. In the seventies there were a huge set
of articles in the Audio Amateur on modifications for the PAS-3, and they
are well worth looking into.

I can't stand the Bose 301s.

I need you opinions, because I am going to put the Dyna in a plywood box
with the Garard turntable with handles and hinge that I can tote to the
local high school gym. The school has a dance club where the kids are
actually interested in Big Band, so I've been asked to be a "DJ."


By all means, then, use the Dyna. It's certainly good enough for that
application.

You may want to have two turntables so you can have one record cued up
while another is playing, though. Kids will get very restless between

cuts.

In the twilight of the swing era, when discotheques were first starting up
in Europe and DJs were still called "disquieres," the way to do this was
with a small console designed for broadcast remotes.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."


Do you need to use the records for effect?
Why not just use CD's or tape and pre-arrange the program. Then again, maybe
it's request nite...

Have fun
Carl




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Sander deWaal
 
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Default Dyna PAS-3X ???

Someone tried to troll:

Can anyone give an opinion of the phono stage of a Dyna PAS-3X preamp ?


Yep, it's of unexpected good quality with a good MM cartridge.
It could get a little noisy though.
For optimal sound, one could rebuild to a CC circuit, passive RIAA,
and then again a CC circuit. Stabilize the HT supply and swap the
selenium heater rectifier for a SS bridge. The 12X4 rectifier will
probably live forever.
Gain will be a tad low, but excellent stereo imaging and detailing
will be your rewardings.

Excuse me for ignoring the rest of your post.

--
Sander deWaal
"SOA of a KT88? Sufficient."
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Arny Krueger
 
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Default Dyna PAS-3X ???

"Scott Dorsey" wrote in message


The PAS-3X is not really all that good a preamp stock,


Its basic phono and line amp designs were not all that different from a
goodly number of mid-fi receivers and integrated amplifiers, both domestic
and Pacific Rim, of the day.

IMO it begs comparison to the equivalent modules of say a Fisher 800 or even
an Eico ST-70.

but it is a good platform to build a good preamp.


Unh, it had a box, a power transformer, pre-punched chassis, and switches.
The quality of the pots and the jacks was not all that great. The quality of
the RIAA eq components was good, but the design values were a little off,
which was typical for the day.

If you looked at upscale designs such as the Marantz 7, you usually found
cathode follower buffers or something like them, following both gain stages.

Paying attention to pot quality, particularly the volume controls, became
popular not to mention being a good idea.

Formal tone control bypasses, were also popular.

In the seventies there were a
huge set of articles in the Audio Amateur on modifications for the
PAS-3, and they are well worth looking into.


The wiring and parts layout was simple enough that it almost begged for
drop-in wholesale replacement of the circuit cards. The Selenium filament
rectifier begged for modernization.

I have the feeling that the early Conrad Johnson preamps started out pretty
close to the PAS 3.


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Sander deWaal
 
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Default Dyna PAS-3X ???

"Arny Krueger" said:

I have the feeling that the early Conrad Johnson preamps started out pretty
close to the PAS 3.


You could be right.
But then gain, there are only so many ways to create a "classic" tube
preamp, especially a phono section.
What CJ did was to use some of the best components around at that
moment in a classic design, which maked them (early '80s) a class
apart IMO.
Nowadays, more modern and different approaches are possible.

The power of CJ still lies in using extremely good components that
will stay within range over many years.
An Abrams tank will probably stand up to specs in about 20 years from
now as well :-)

--
Sander deWaal
"SOA of a KT88? Sufficient."
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