The secondary RC filter pretty much works independently from the rest of the circuitry.
I know the F5 has a huge bandwidth. If you are already using a 1K/.0022 filter it would be better to limit the bandwidth at the F5s input circuitry. That has been discussed by Mr Pass, I believe even in his original article. 10pf across the inputs comes to mind, but I could be off.
I know the F5 has a huge bandwidth. If you are already using a 1K/.0022 filter it would be better to limit the bandwidth at the F5s input circuitry. That has been discussed by Mr Pass, I believe even in his original article. 10pf across the inputs comes to mind, but I could be off.
I thought someone might be able to help me diagnose this issue. 
I recently noticed a big difference between playback levels between my Mac Mini (which is outputting to the DAC via USB) and my Oppo 980 player. A few weeks ago I pushed my receiver to clipping (for just a moment) while using the Mini/DAC setup. Ever since, it seems that I have to "crank" the receiver to produce a normal loudness level. As a reference, -20 dB is pretty loud when using the Oppo. The Mini/DAC might need to go to -0 dB for a comparable level.
There's no distortion, buzzing, humming, or odd artifacts during playback either way. The speakers seem fine. The receiver is fine. It's just odd.
I recently noticed a big difference between playback levels between my Mac Mini (which is outputting to the DAC via USB) and my Oppo 980 player. A few weeks ago I pushed my receiver to clipping (for just a moment) while using the Mini/DAC setup. Ever since, it seems that I have to "crank" the receiver to produce a normal loudness level. As a reference, -20 dB is pretty loud when using the Oppo. The Mini/DAC might need to go to -0 dB for a comparable level.
There's no distortion, buzzing, humming, or odd artifacts during playback either way. The speakers seem fine. The receiver is fine. It's just odd.
Maybe getting bored with 'soft' sound of the A-20.....
Maybe tube stage much better..........
The DAC is awesome but the setup is impractical for me and I have a master plan involving the AMB Y2 and a CS3310 Digital Volume controller dac/preamp setup.
Vintage NOS UTC TRW A-20 Transformer Tube Amp Pair. Search US Ebaaay!
About 27 Bucks with 12 hours to go!
oh, Ebay. Let's see where the price goes in the last 30 seconds!
The DAC is awesome but the setup is impractical for me and I have a master plan involving the AMB Y2 and a CS3310 Digital Volume controller dac/preamp setup.
Does this means that the AMB is superior that the Chinese DAC?
I don't believe a comparison has been done, so I do not know if it will be better. However, it's compact size is worth the possible compromise in sound for my project goals.
I thought someone might be able to help me diagnose this issue.
I recently noticed a big difference between playback levels between my Mac Mini (which is outputting to the DAC via USB) and my Oppo 980 player. A few weeks ago I pushed my receiver to clipping (for just a moment) while using the Mini/DAC setup. Ever since, it seems that I have to "crank" the receiver to produce a normal loudness level. As a reference, -20 dB is pretty loud when using the Oppo. The Mini/DAC might need to go to -0 dB for a comparable level.
There's no distortion, buzzing, humming, or odd artifacts during playback either way. The speakers seem fine. The receiver is fine. It's just odd.
I feel like a real Homer (Simpson). When I pushed the receiver to distortion levels, it seems that iTunes adjusted down its level to compensate. I've changed the sound level back to 100%, and the receiver/DAC combination is once again way loud at -30 dB.
Thanks for pointing me in the right direction.
oh, Ebay. Let's see where the price goes in the last 30 seconds!
$106US plus shipping
I tried to experiment with 24bit 192khz to see how or if it sounds good at all.. but all I got was hiss...actually I could hear the begining of the song by right away it went to hiss..
I uses XXHighEnd to upsample.. I checked the documentation that came with it
and I set the switches right... has anybody tried 24/192 successfully?
I uses XXHighEnd to upsample.. I checked the documentation that came with it
and I set the switches right... has anybody tried 24/192 successfully?
