Tonyjack
I'm a fan of Gustard for fairly inexpensive DAC's. I have one and love it
There is a 22x pro listed for a good price. It offers a lot for the money and right in your budget
Dac: Old vs New
I have older DAC's that sound good but I've had them for several years. Benchmark DAC 1 and PS Audio Digital Link III with Mods. Would a newer DAC from, Topping (DX-5), Schiit (Modi Multibit 2)or SMSL, be a SIGNIFICANT improvement in sound? Seems like the newer DAC's have way more resolution and transparency. I prefer those attributes in gear over warmth.