HiFi 5.2

It is transformer hum.

I had an electrician over and that does not measure DC that is coming in or a DC offset. He told me that there is one company that can...

But I have not solve this issue. How do you measure how much DC is coming in? I asked two of my local electrical companies and they...

How I want to measure how much DC is coming in

This was a difficult question to answer I see

So how should I measure I'm having problems with my REL subwoofer it is making noise when I only have the power cable connected nothing...

I was measuring one of my outlets to see if I can measure the DC. I think I have a DC Offset at home it would be great to see how much...

People seem to be very knowledgeable in this thread. Maybe somebody could help me with this means does it mean that it is 3 V DC on my...

I contacted Marantz asked them about AV 10 and AV 20 and I got a fantastic answer back. I wish every manufacturer would do this. My...

Has anybody compared to the AVM 90? (AV20)

Does anybody in Europe own this subwoofer and does the amplifier make any noise when nothing is playing it's only on.

I agree with that, but our standards needs to be much higher or else manufacturers will simply not care.

I hear what you're saying but when you're paying this amount of money, the equipment should be quiet. I have asked multibel people and I...

I'm pretty sure that SINAD has something to do with if any noise is coming out of your speakers I used to own a Swedish brand called...

If I understand you guys correctly, then the AV 20 has less hiss from the speakers than the AV 10 or am I totally off here. And one...