[gunnet]

Hi,
I would like to buy a brand new Hafler 9130 power amplifier, but my question
is if it's worth. Because I just found that capacitor deteriorate also if
the amplifier it isn't used. And I don't want to raplace nothing....

Someone know the date of manufacturing of this amp? On the manual on hafler
website near the circuit chematic diagram there is written "revised 9/3/92".
So it's from 1992?
How many year last the capacitor?

thank you

[Don Pearce]

On Wed, 7 Mar 2007 14:14:44 +0100, "gunnet" wrote:

Hi,
I would like to buy a brand new Hafler 9130 power amplifier, but my question
is if it's worth. Because I just found that capacitor deteriorate also if
the amplifier it isn't used. And I don't want to raplace nothing....

Someone know the date of manufacturing of this amp? On the manual on hafler
website near the circuit chematic diagram there is written "revised 9/3/92".
So it's from 1992?
How many year last the capacitor?

thank you





You say "my question is if it's worth", but omit the rather vital
conclusion to the sentence; if it's worth what?

The 1992 revision date doesn't necessarily mean that your amplifier is
from that year - just that it won't be earlier. You can tell if there
are capacitor problems. Turn it on - does it hum? If not, good so far.
After a few minutes, touch the big caps - they should be completely
cold; if they are at all warm, there are problems with them. You may
find that they improve after a while operating as the electrolytic
barrier re-forms.

d

--
Pearce Consulting
http://www.pearce.uk.com

[GregS]

In article , "gunnet" wrote:
Hi,
I would like to buy a brand new Hafler 9130 power amplifier, but my question
is if it's worth. Because I just found that capacitor deteriorate also if
the amplifier it isn't used. And I don't want to raplace nothing....

Someone know the date of manufacturing of this amp? On the manual on hafler
website near the circuit chematic diagram there is written "revised 9/3/92".
So it's from 1992?
How many year last the capacitor?


Brand new Hafler 9130 should last a long time???

Some caution might be in store for powering old
equipment. Just close your eys.

I don't think I ever replaced a power cap that wasn't blown apart in an audio amp.

Sometime I add additional caps.

Don't worry.
Go for it.

greg

[gunnet]

You say "my question is if it's worth", but omit the rather vital
conclusion to the sentence; if it's worth what?
if it's worth buying this amplifier with old caps. After reading on google
that the bass response with old caps is worse....

I have no chance to try it.
Here's the manual:
http://www.hafler.com/techsupport/pdf/9130_amp_man.pdf

[Barry Mann]

In , on 03/07/07
at 09:56 PM, "gunnet" sadf said:

You say "my question is if it's worth", but omit the rather vital
conclusion to the sentence; if it's worth what?
if it's worth buying this amplifier with old caps. After reading on
google that the bass response with old caps is worse....

I have no chance to try it.
Here's the manual:
http://www.hafler.com/techsupport/pdf/9130_amp_man.pdf

If you can't try it, the price should reflect that.

I assume that this is an online sale. I can't say how many online sales
go sour, but I've had a few come in for my evaluation. In some cases I
think that the seller knew that the unit was in trouble. In other cases
the seller was representing the product as well as he could -- the last
time he used the product (15 years ago) it worked. In one case a Revox
Reel to Reel came in. The seller said "hardly used". Perhaps not in
Revox terms (they last a long time), but someone put at least a 1000
hours on the heads and there were other problems with the deck (a
missing record channel).

At one point I needed a part for a long discontinued cassette deck.
Ultimately I found a unit on eBay. The owner had glowing statements
about the excellent condition of the unit and he would include a copy
of the service manual. Since he could make the transport spin, I knew
that the part I needed was OK, the rest I didn't care about. When the
unit arrived, I noticed that someone had replaced the playback head
with something strange. This had been a high end unit, but the odd head
ruined any chance of great performance. I don't think that the seller
was in a position to properly evaluate the unit, much less recognize
the odd head on sight. I notified the seller of the problem because he
was a frequent seller and he should be aware of any problems with his
sources. I was able to salvage the part that I needed and I never told
the seller about the true fate of his prized deck. I have an original
service manual.

-----------------------------------------------------------
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]
-----------------------------------------------------------

[Eeyore]

gunnet wrote:

You say "my question is if it's worth", but omit the rather vital
conclusion to the sentence; if it's worth what?
if it's worth buying this amplifier with old caps. After reading on google
that the bass response with old caps is worse....

I have no chance to try it.
Here's the manual:
http://www.hafler.com/techsupport/pdf/9130_amp_man.pdf

Mosfet output stage. Nice.

Graham

[gunnet]

I assume that this is an online sale. I can't say how many online sales go
sour, but I've had a few come in for my evaluation.

This is a website that it's selling brand new audio product. I already
purchased from him, and the unit was really new. They're selling unsold
stock for distributor in my country.

[Eeyore]

gunnet wrote:

I assume that this is an online sale. I can't say how many online sales go
sour, but I've had a few come in for my evaluation.

This is a website that it's selling brand new audio product. I already
purchased from him, and the unit was really new. They're selling unsold
stock for distributor in my country.

What's the price ?

Graham