35% improvement with the power supply at least.Add the dual headed USB from iFi for another jump.Pretty nice jump in sound quality.With both pieces pretty spectacular sound.Rick at Audioforce dot biz
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I have the power supply, and can tell you I've tried it with 2 separate dacs: a Wavelength Cosecant, and a Meridian Explorer.
The Wavelength was a noticeable improvement, but the Explorer went to a whole new level. Better bass, better staging, more body, more there there.
What dac are you planning to use with it?
Thank you for the helpful comments.
I just received the 2 units.
I will be using it with my Bryston BDP-2 usb player and my PS Direct Stream Dac.
I seem to be getting a periodic click,(pop, snap)that is driving me crazy. Its faint but I can hear it about every few minutes.
Also, did you find the unit needed burn in time?
It's doing some great stuff right now for my Mac Mini > Bel Canto uLink > Bel Canto DAC3 playback. Just got it Saturday, so about 100 hours on it. Bass is now better rendered, soundstage width and depth better, greater treble extension, lower noise floor, and overall more relaxed and transparent presentation via the ST fiber link and using Nordost Heimdall USB cable. I used to think that the fiber link had some roll off and attenuation, but not anymore. Not so great recordings aren't prettified, though.