Testimonials

When it comes to isolating your digital chain from your analog chain, there is nothing better than an optical air gap

Ray G, USA

Timbre and transients are off the charts. I'm picking up ambience that I never did before. It's un-muffling the f*ck out of the music. It certainly feels endgame

Michael D, UK

The best way to eliminate the RFI issue completely is with OPTO-DX. It is one of the most significant upgrades that I have ever made to my Hi-Fi system.

Neil VM, Ireland

...much larger soundstage, better separation, better dynamics, more vivid sound - it's the best I've heard my system

Bernard H, Austria

...the reduction in noise is profound. I’ve never heard a background this black. I honestly can’t believe the sound coming from my speakers

Ken B, USA

I find it's just so easy to listen...lots going on in 3D too...the sound from OPTO-DX is pretty astounding!

Alfie M, Canada

Fantastic product...more depth and holographic representation of the music. I have truly never heard such good sound

Steve A, Australia

OPTO-DX is lifting up my system very nicely. The degree to which
I can hear the benefits on instrument resolution is striking

Cedric W, UK

It was really hard for me to believe that there was still that much more information being blurred by RF noise. The optical isolation of OPTO-DX just takes things to a whole different level

Todd N, USA

OPTICAL RF NOISE ISOLATION FOR DX OR USB DACs

USB TO DUAL-COAX FOR M.TAPs UPSCALING TO DX DAC

ISOLATION CHAMBER FOR ZERO RADIATED RF NOISE TO DAC

Dan's Blog

The 'Best' Source Input? - Part I

This post for is the data junkie who likes objective comparisons—in this case using quantitative measurements to indicate which DAC source input of...

Sound Quality & RF Noise - Out of Band Energy

Audio analyzers like the Audio Precision APx555 measure the analog output signal of DACs within the 'in-band' range of 20Hz to ~20kHz to ensure the...

Notes from CanJam NYC

This show was a coming out for Audiowise ...and the first show of many I plan to attend. As with most things audio that deal with sound quality, i...