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PS Audio DAC output

Hello.

I have a PS Audio DLIII DAC (with Cullen stage IV mods) which I think has a bit "hard", agressive and fatiguing sound...

 According a review, its output is around 2,8V. I plug the DAC at the "Direct Input" of my integrated amp (bypassing pre), which sensitivity is 1V/5kohm (1kHz). Is ok?

missak
missak OP
7 posts
 
I think I figured it out. I changed the sampling rate from 96khz to 192khz and the sound became smooth and "liquid". Since it is now late at night, I have heard in very, very low volume, so tomorrow I will check in a comfortable level. Still, it seemed to make a good difference. I hope I'm not mistaken.

Dear, pmotz. Do not worry, I appreciate your help. If you want to look at the schematic, the service manual is here: https://www.hifiengine.com/manual_library/sansui/au-a707mr.shtml

My (adorable) speakers are Harbeth Super HL5 Plus.
missak OP
7 posts
 
Solved! The problem was in AC power...

Fixed and sounding fantastic now. Running Squeezebox Touch as transport > Oyaide coax cable > PS Audio DLIII DAC. Smooth, full, articulated, zero fatigue. Goosebumps! Just amazing. Thanks.
mesch
1,679 posts
 
The USB input on the DLIII is the weak link. I used a USB?SPDIF converter with the one I owned.
missak OP
7 posts
 
The USB input on the DLIII is the weak link. I used a USB?SPDIF converter with the one I owned.

Agreed. Now, with everything tidy, surely the SBT + S/PDIF + DAC configuration excels with mastery.
When there was the problem with the amp AC line, the SBT/coax sounded lean and with over-tight and hidden bass. In a way, the USB input seemed to come out better (less worse), although it was not good either.
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