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Topic: How to distinguish a N112 |
Curt Langston
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Posted 28 Jul 2011 6:27 am |
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How can a person tell which N112s are chip upgradable? Is there a certain number? How about whether the on switch is on the front or back? Where are the newer N112s made? China?
Thanks in advance. |
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Curt Langston
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Posted 30 Jul 2011 2:21 pm
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Well, at least I'm not the only one who does not know how to tell!
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Dave Hopping
From:
Aurora, Colorado
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Posted 30 Jul 2011 2:57 pm
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| Mike Brown might know. |
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b0b
From:
Cloverdale, CA, USA
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Bill Lowe
From:
Connecticut
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b0b
From:
Cloverdale, CA, USA
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Posted 30 Jul 2011 3:51 pm
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I see. If you have to use a soldering iron to replace the op amp chips, the amp isn't considered "upgradable" because it would void the warranty.
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-𝕓𝕆𝕓- (admin) - Robert P. Lee - Recordings - Breathe - D6th - Video |
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Jack Stoner
From:
Kansas City, MO
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Posted 31 Jul 2011 2:08 am
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I don't see where having soldered in chips would make it not "upgradeable". It's obviously harder than socketed chips, but still "upgradeable" if someone wanted to. Soldered in components do not make it "not repairable".
As far as the warranty, if it's changed from the factory specs to something else, whether a plug in or soldered in, seems to me it would affect the warranty the same way.
Another option for someone that wants to change the soldered in Op Amp chips on the preamp board, would be to unsolder and remove the original chips, solder in IC sockets and then plug in the new chips (and then if they wanted to go back to the original it would be easy since they are no longer soldered in). This would take someone with printed circuit soldering skills and equipment or the board could be hacked up and ruined. |
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Ken Fox
From:
Nashville GA USA
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Posted 31 Jul 2011 5:08 am
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I posted that some amps are not user upgradable because most lack the soldering skills, tools and proper training to handle the job of installing 8 pin DIP sockets.
I can say I have only found one amp so far without sockets! Maybe it was built on a Monday and they were out that day? 
I can see no way to tell when or if the all the amps were changed to soldered in preamp chips. I advise people to take a look at the chassis before considering the chip change out. |
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b0b
From:
Cloverdale, CA, USA
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Ken Fox
From:
Nashville GA USA
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Posted 31 Jul 2011 9:41 am
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| Bob, we are using the OPA2134PA in our kits. they seem to be well accepted! |
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