help me with a DAC decision please

You can read Schiit  Yggy impression thread over in other forums.  I bought one after many months of searching and listening.  I am very happy with it!

I would suggest evaluating and purchasing the BenchMark Media DAC2 HGC.

I replaced the Wadia 521 with MSB Analog DAC.  The MSB is closest to the Wadia sound character but betters it on every front.  Furthermore the MSB plays high res. I did not like the new Wadia DAC i.e.  The 321. It does play Hi res bit does not sound like the Wadia you and I are familiar with . It is not a solid weighty sound. If you fall into the Wadia camp i.e. Before Fine Sounds took over you would be happy with MSB .  Hopefully you will find a used MSB Analog DAC to fit your budget.   Also look at the following Audiogon Thread.   From Wadia to ?   Sorry I do not know how to paste the link

FROM ABSOLUTE SOUNDS
Every digital volume control will truncate bit-length (and musical data) if it is used at its very lowest settings. To reduce this effect the Wadia’s maximum output level can be adjusted from 4.0V down to 2.0V or even 1.0V, so that at normal listening levels the volume control can be set near its maximum level. 

Very important you done this, have you set this max level  dpm2340 on your Wadia 121 yet, so you use it's digital domain volume control near full level for lound listening and go direct into your power amp.
As if you don't you could be "bit stripping" or as Absolute Sounds calls it (truncate bit-length)

Cheers George

Mostly true, but to nit-pick an answer, I've seen at least one maker use a 32 bit DAC's to 24 bit music, and use the remaining most significant 8 bits to do digital volume control, as well as DAC's that adjust the maximum output voltage digitally, while leaving the music data the same.

So I'd no longer say that all digital volume controls cause data truncation. Caveat Emptor however. 

Best,

Erik