Hello,
I recently sold an amplifier, that, to the best of my knowledge, was in perfect working condition. This was a high-end solid-state boutique amp ($2,000) that I purchased new in the summer of 2024 and that has never left my studio, let alone the table on which I unpacked it.
Five days after I sold him the amp, the buyer says he believes there's a "cold solder." He says when you first start the amplifier, the first notes you play won't "pass through" or might even distort. He says that as the amplifier gets warmer, the problem goes away, but that it will get worse if not fixed.
I've never noticed this, but I gave him the benefit of the doubt. So, I shot agedhorse a message, and he said: "The power module used in those amps has a short cycle power-up delay that will delay power-up for 10 seconds ... This is part of the safety regulatory compliance of the power supply on the power module. There may be additional signal muting done within the DSP preamp as well."
I told the buyer what agedhorse said, and now he says it's also happening when you stop playing for about 10 minutes. I have done this many times, and I've never had that happen to me.
How would you proceed from here if you were in my shoes?
Edit: Also possible worth mentioning is that I asked him if he wanted to try the amp before purchasing it, and he declined.
I recently sold an amplifier, that, to the best of my knowledge, was in perfect working condition. This was a high-end solid-state boutique amp ($2,000) that I purchased new in the summer of 2024 and that has never left my studio, let alone the table on which I unpacked it.
Five days after I sold him the amp, the buyer says he believes there's a "cold solder." He says when you first start the amplifier, the first notes you play won't "pass through" or might even distort. He says that as the amplifier gets warmer, the problem goes away, but that it will get worse if not fixed.
I've never noticed this, but I gave him the benefit of the doubt. So, I shot agedhorse a message, and he said: "The power module used in those amps has a short cycle power-up delay that will delay power-up for 10 seconds ... This is part of the safety regulatory compliance of the power supply on the power module. There may be additional signal muting done within the DSP preamp as well."
I told the buyer what agedhorse said, and now he says it's also happening when you stop playing for about 10 minutes. I have done this many times, and I've never had that happen to me.
How would you proceed from here if you were in my shoes?
Edit: Also possible worth mentioning is that I asked him if he wanted to try the amp before purchasing it, and he declined.
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