[davidzvi]

Looking a DAC with a Sub out for active bookshelf speakers and a powered sub.
 
Are there any out there?  Or is there a simple crossover splitter?

 

[Bones13]

Look for a Sub with internal crossover, and line outs for your speakers.

 

[davidzvi]

Quote:

Look for a Sub with internal crossover, and line outs for your speakers.

Sorry I should have specified.  I already have them. 
 
Swan D1010 IV
Polk Audio PSW10
 
The Polk support says I will be able to run the Sub of my center/sub channel.  But  after giving it more thought I think I should probably upgrade that as well.  I could just upgrade to an actual card as I am just running off the on board Realtek chip.
 
I did find the pico UPSAMPLING USB DAC.  But for a third of the $300 I could get an Asus Xonar DX.  I would probably be willing to spend more than $100, but not $300.
 
I did originally look at a small sub with ins and outs.  But that was about $900, so.....