I picked up this iDefender thing to go with my Grace Standard DAC that is USB powered. I have already noticed that this Grace Standard DAC changes its signature based on cables and ports but up till now it was just different versions of horrid. The iDefender changed it substantially for the...

I picked up this amp on ebay and while it sounded fine I wasn't blown away. I once owned the X-Can v1 back in the day and had heard of upgrades for it so I sought out some upgrades for the v3. Yesterday I did the full upgrade from Rock Grotto with new caps and ultra fast diodes. I also updated...