Douk Audio DSD AIO DAC/Headamp Quick Impressions and Measurements This thing ain't half bad for an AIO DAC/headamp. I actually prefer the sound of this Douk to some more expensive units. At first I was expecting that nasty ESS Sabre sound, but the nastiness never came! You want to know why? It's not a Sabre DAC. I originally thought it was a Sabre DAC because I saw the letters DSD. Well, it turns out that the chip is a TI PCM1796. This chip actually isn't half bad - kind of reminds me of PCM1792, probably in the same family. No treble nasties. If one thing, maybe a bit on the dull side. The Douk drove the HD650s competently. I only have a few complaints: Only available from China. El Lay customs decided to keep it for a few weeks. Driver comes on tiny mini CD. I placed the CD specifically in one place so I would not lose it. Of course this means and when I needed it, I forgot where I put it. I resorted to downloading the evaluation version of the generic XMOS drivers from the XMOS site. Of course I found the mini CD right after I did this. No volume knob. You control the volume via volume slider with a mouse on your computer screen. Of course this means a few occasions where you blow out your ears. Windows like to max out volume upon connection of the USB. 1/8" jack seems kind of cheap. I needed to wiggle the plug around to get a good connection. Here are some good things: No digital nasties. Nice warm sound. But maybe kind of dull and smoothed over in the lows and mids. Marginally better sounding than iFi Nano iDSD Dirt cheap at well less than $100 including shipping costs. I think I bought it for $78. The Douk also comes with a cable for DC power in, to be used with a USB phone charger plug. I believe this gives it a bit of extra juice or current. This didn't seem to make a difference with the high impedance HD650. Measurements below are slightly lower than usual at 0.527Vrms into 330 ohms. The steps on in on the slider are not that granular so that was the closest I could get to 0.550Vrms. The measurements are pretty good. Note that measurements were taken without the extra DC power. 1kHz 600Hz and 1700Hz.