I'm not actually using volume control on my WA22. I have it set in one position. Low Gain at 2/3's volume. I then use my Oppo HA-1 as a DAC / Pre-amp and use it's volume to control the listening level. That way I can sit back and use the Oppo's remote control for volume.
Is there anything wrong doing it that way?
If I carry on using it that way I won't wear out the Woo's volume control.
As I mentioned before, it's always better for SQ to have the gain of the last item in an audio chain as low as possible. Since the Woo is the last item, you want to keep its volume as low as possible while keeping the input line voltage as high as possible (without exceeding 2V at 0db for RCAs or 4V at 0db for XLRs). Ideally this means you bypass any attenuation stage in the DAC for even better SQ (I know the HA-1 has such a mode). So now you're left with twiddling the Woo's knob to adjust volume. But with a stepped attenuator this becomes annoying since sometimes the desired volume is in-between two steps. Now you have to turn off bypass mode in your DAC and attenuate on the DAC by, say, 10db, just so you have enough room to work with on the amp's volume knob.
Yeah, stepped attenuators are the tools of the devil. A lot of high-end amp makers have been moving away from these things lately, and I hope Woo follows suit with the WA22.
Oh, and any audiophile volume control won't wear out for many, many years, and when they do, you're already out of warranty and so can just have it with a soldering iron and a replacement. In fact there's a better chance of it going bad if you _never_ move it.
Edited by Stereolab42 - Yesterday at 4:51 pm