OPTO•DX is back in stock!

OPTICAL RF ISOLATION

USB TO DUAL-COAX

RF ISOLATION CHAMBER

Lower Measured RF Noise Equals Better Sound

We test and measure everything ...and publish the results so you can understand the 'why'

Affordable End-Game Sound

Products for a new generation of pragmatic audiophiles who want the ultimate in sound quality and value

Dan's Blog

My Listening Room Setup ('A')

I have two listening areas. My primary ('A') has Voxativ loudspeakers driven direct from a Chord Electronics TT2 in a mid-field environment. IMO th...

A New Product for a New Era in High End Audio

After about 9 months of development, SRC•DX was launched this week - and will ship around the end of the year.  Its a low RF noise USB to dual-coa...

Good Measurements ...Finally!

I finally got a higher end spectrum analyzer for proper noise measurements.  The Signal Hound BB60C replaces my SA124A for better accuracy in real-...