Cheap DAC w/ volume control for direct amp input?

Would like to feed an amp directly to not need an integrated amp. Thanks for any info.
Thank you gentlemen for sharing your experiences with these dac's. I'm really looking forward to trying out a tube amp w/ some old paradigm bookshelf speakers at work. Currently using a w4s dac w/ a xa-30.5 amp and c1 speakers in the den. It sounds fine although it's hard to imagine the singer is in the room frequently. Probably just a set up problem. Playing w/ these dacs should be fun! Thank you again for your time. :)
Easy. Grant Fidelity Tube DAC09. $300 new. Show up here used at times. A bargain. I use mine with a Dynaco ST70 with great results.