Who is using their DAC as a preamp?

Cleaner than the Sys...Ebay item # 253818627052...HiFi version. $40 or less, shipped. About what you would pay to build one. Promise..

Trouble is the minimum 1:10 impedance ratio.
It shows a 100kohm Alps passive!!!! and that will be a problem not for the source but with many poweramps
They should have made it 10kohm, that way all is good, except for <33kohm poweramps, which thank god there are not too many of.

Cheers George

George, if you look further down on the Douk page of the device, in the specification section, it states that the Alps 27 pot is 50K ohms. I have not taken mine apart, which would be easy, but I am telling you, it sounds quite invisible.

It all over the place, they say 50k input but don’t say which one, which means a 50k pot. Could be the cheap 24mm they have, as you can’t see the value on it.
But the pic if you zoom on the Alps (Blue Velvet) says 100kohm A taper (log) pot and it would be a 100kohm input impedance.

Whatever it is (50k or 100k), 10kohm is the best value to have, as all decent sources can handle 10kohm load (save for a couple of silly tube output ones)

A 10kohm pot has "at worse" 2.5kohm output impedance which is fine for any poweramp with >33kohm or higher input impedance.

Would be nice if you open it and find an Alps 10kohm A-taper (log) Blue Velvet for $40 with box and decent rca’s and free shipping.

Cheers George

George, picture is just a picture. Did you know that Alps never referred to the control as a Blue Velvet. Nowhere on their web site have I found it. If you could find it, please post it. I believe some audiophile engineer, in using it, gave it that name. I am sorry Georgi, but this device is an EXCELLENT passive unit, for cheap, according to my ears, and the dozen or more power amplifiers I have tried with it. The control has a sexy, very high end feel, and the little box is non resonant, and built really well. Enjoy ! MrD.