As an upgrade for the dh-labs try the stereolab xv-ultra. Excellent digital cable and within your budget.
Noticeable step up from my DH-75 Silver Sonic...
I'm looking for a noticeable step up from my DH-Labs DH-75 Silver Sonic digital cable... Any suggestions? $300, maybe a little more... Amp is NAD326Bee, Speakers are Psb B6 and interconnects and speaker cables are all Morrow... MA-4's and SP-4's... Any opinions?