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toning down the ps audio perfect wave dac

i own an original ps audio perfect wave dac. i called ps audio about sending it back for an upgrade. a technician i spoke to said the upgrade would increase the resolution of the dac.

i would like to tone down the treble a bit, as i find it a bit treble heavy.

i thought the least expensive way of doing this is substituting caps in the signal path and or replacing the metal film resistors with reiken carbon fibers.

i am not familiar with the "sound" of caps, but would like to soften the treble.

the only caps i am aware that might do that are audio note, mundorf or duland. am i on the right track ?

if not, what other caps could i consider ?
mrtennis
edorr
714 posts
 
I think would be a complete shot in the dark. Irrespsectively, I would get the upgrade first and then reconsider. From what I recall the upgrade does improve smoothness of the high frequencies.
chayro
2,998 posts
 
I wouldn't touch it, as the value would decrease to practically nil. Buy a Yaquin Tube Buffer from Pacific Valve for $225 with 30-day money back. That should smooth it out a bit. IMO.
mechans
3,048 posts
 
Get a component you like the sound of tube buffers are usually intended for impedence matching. Improving resolution sounds like more of what you don't want. just my 2 cents.
audioengr
3,282 posts
 
This kind of tuning is risky. If you wanted a softer presentation, the V-Cap teflons, not CUTF will do this. Some Cardas cabling will also do it, but they cause HF rolloff IME.

These things tend to be filtering, which is not a good path to start down. It is better to determine the component that is causing the sibilance and get rid of it. It may be a preamp or even the speakers.

Steve N.
Empirical Audio
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