Class D amp long term reliability

[JSmith]

I meant it affectionately, as I am a fan.

I understand, however it's not about how you may mean it, it's about how someone else might interpret the term usage.


JSmith

 

[goryu]

Why are we discussing turntables in a class d amp thread???

 

[Fahzz]

In @Fahzz case, still do not know what exactly is wrong with his amp. Am big proponent of understanding the target problem before suggesting a fix.

Per Audiophonics:
"We have found the fault on your amplifier,
A ceramic capacitor in the Power ON circuit have been remplaced." (sic)

A word of advice: when buying from overseas keep in mind the return shipping cost. I initially ran into a problem where it would've cost me more than $200 to return the unit to the manufacturer. I had someone look at it in the US, and forwarded their findings to Audiophonics. They sent me a mailing label, repaired it, and returned the unit.

Another word of advice: In my experience, it was very difficult to find someone who repairs class D amplifiers. I got lucky. If you can't find someone then you wind up at the mercy of a company thousands of miles away.

 

[Fahzz]

When I said I was lucky to find someone in the US to look at my amp, I meant that I was lucky that member Rick Sykora was reading the thread and offered to help. He graciously asked me to send the unit to him, and the shipping costs were much lower here in the States. He took a look at it for a reasonable fee, and sent me his impressions of what the problem was, which I forwarded to Audiophonics, and based on his findings they agreed to pay for a return and repair under the warranty. (I hesitated to mention his name here without his permission.)

Just one more reason that membership in ASR is so valuable. Thanks again Rick!

 

[Rick Sykora]

When I said I was lucky to find someone in the US to look at my amp, I meant that I was lucky that member Rick Sykora was reading the thread and offered to help. He graciously asked me to send the unit to him, and the shipping costs were much lower here in the States. He took a look at it for a reasonable fee, and sent me his impressions of what the problem was, which I forwarded to Audiophonics, and based on his findings they agreed to pay for a return and repair under the warranty. (I hesitated to mention his name here without his permission.)

Just one more reason that membership in ASR is so valuable. Thanks again Rick!

Happy to help out. For those who are interested, despite what appeared to be Audiophonics daughtercard issue, replaced it with the Hypex MP series eval board. At first it worked, but after some cycling, encountered the same issue as with the daughtercard. This could only mean that the amp module was at fault. Seems an oddball failure. Was good to see Audiophonics step up once the problem was isolated.