amirm

I spent quite a bit of time characterizing the input impedance last night. It essentially stays constant in the order of 20 kOhm. I...

These articles by DonH50 are excellent for folks like me (a newbie) and maybe for others also. Thanks to DonH50 for sharing and to Amir...

Amir is an educator, and a patient one at that too.

Had a bit more time to investigate the phase issue. Here is the outcome of comparing 3 DACs: Focusing on the red graph, Topping D70s...

The output is RCA as that is the only thing that AVA accepts. I found this out late at night and didn't have time or motivation then to...

FYI, i don't remember if I have updated its firmware or anything.

It is this Matrix Audio X-SABRE Pro MQA...

Above is ioth split s/pdif input.

Fyi I measured 18 degrees phase shift between matrix dac and topping at 1 Khz. So they are out of phase. Someone asked about this on...

yet .... See the PK metric change when different attenuation is used .... on Josh's gear. This means there are changes that are...

But I didn't. It is in the review where I induced a magnetic field: Result was measurable but at an incredibly low -140 dB. Reason...

Never have I ever heard those audiophiles complain about audible noise, and then one of these devices fixes that. It's always about...

That could certainly be done. Seems like the designer didn't know this was a problem, likely because his intended application was the...

Thanks, @amirm: very helpful. I was wondering: why not mask the relay noise with random sound loud enough to blur the signature of the...

One last measurement before I put away the box. This is how much of input B bleeds into input A. Not the output. But the other device...