1995 - Our 29th year in business - 2024

Channel D Audiophile Products

are dedicated to the audiophile enthusiast through understanding and preserving the purity of the audio signal through the entire playback stream. From signal analysis and vinyl archival, editing and playback, to high resolution digital playback...

Getting Started With Computer Audio

We are hard core audio enthusiasts
Channel D was the first computer audio software company to exhibit at the famous international Rocky Mountain Audio Fest, long before audiophile interest in computer audio had blossomed (let alone even begun to bud) and continued as the only computer audio software company at audiophile expos for several years. Integrating vinyl LP playback (with Pure Vinyl™) always has been an important part of our expo demos, which have always included both vinyl and digital audio music sources.

Starting in 2006 and continuing the count through 2019, we have mounted and hosted more of our own audiophile trade show demonstration rooms: that is, setting up an audio system, positioning speakers, etc. (the "room owner" in the parlance of show organizers) than all other computer audio software companies combined. This proves our continued committment to developing innovative products, demonstrating them under stressful and demanding trade show conditions, and insuring that they deliver the highest possible performance.

We were even honored with one of the highest accolades in this very competitive arena: "Best Sound, Cost No Object" by The Absolute Sound at AXPONA 2014 - using bookshelf speakers in a system that cost only a small fraction of the price of some systems at the show.

Sitting behind a desk and cranking out computer code is a cakewalk compared to tackling the challenge of setting up great sounding exhibit rooms despite the unfavorable acoustic environment on the level but difficult playing field of an audiophile trade show, where products are carefully scrutinized by attendees and the audio press alike, and the proof is in the listening.

- Rocky Mountain Audio Fest, Denver: eleven consecutive years
- AXPONA (Chicago, New York, Atlanta, Jacksonville): nine consecutive years (ten AXPONA shows total, with two in 2011)
- Newport Beach (Irvine), California: four consecutive years
- New York City Audio Show: two consecutive years
- Munich High-End, Germany
- California Audio Show (San Francisco)
- Capital Audio Fest (Washington, DC) three consecutive years

The above list of audio expo demo rooms mounted by Channel D doesn't count the companies who have chosen to use our products in trade show demos. When you see Pure Music being used at a trade show, you can rest assured that it's because the exhibitor independently chose (and paid for) Pure Music, not because we solicited them or enticed them with a "freebie." Many thanks to the companies who have purchased our products at full retail price to use in their trade show exhibits.

Honors:
- 2023 - Stereophile Editors' Choice, Class "A Plus" Rated Component
- 2023 - Stereophile Editors' Choice, Class "A" Rated Component (two separate Product Awards)
- 2023 - Stereophile - Recommended Components
- 2022 - Stereophile Editors' Choice, Class "A Plus" Rated Component
- 2022 - Stereophile Editors' Choice, Class "A" Rated Component (two separate Product Awards)
- 2022 - Stereophile - Recommended Components
- 2022 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2021 - Stereophile Editors' Choice, Class "A" Rated Component (two separate Product Awards)
- 2021 - Stereophile - Recommended Components
- 2021 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2020 - Stereophile Editors' Choice, Class "A" Rated Component (two separate Product Awards)
- 2020 - Stereophile - Recommended Components
- 2020 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2019 - Best Sound, Runner Up - New York Audio Show 2019 (from parttimeaudiophile)
- 2019 - The Absolute Sound - Golden Ear Awards Winner
- 2019 - Best Sound (Cost No Object) - AXPONA 2019 (from The Absolute Sound)
- 2019 - LUX Magazine 2018 Global Excellence Award Winner
- 2019 - Stereophile Editors' Choice, Class "A" Rated Component
- 2019 - Stereophile - Recommended Components
- 2019 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2018 - Stereophile Editors' Choice, Class "A" Rated Component
- 2018 - Stereophile - Recommended Components
- 2018 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2017 - Stereophile Editors' Choice, Class "A" Rated Component
- 2017 - Stereophile - Recommended Components
- 2017 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2016 - Stereophile Editors' Choice, Class "A" Rated Component
- 2016 - Stereophile - Recommended Components
- 2016 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2015 - Positive Feedback - Brutus Award Winner
- 2015 - Stereophile Editors' Choice, Class "A" Rated Component
- 2015 - Stereophile - Recommended Components
- 2015 - The Absolute Sound - Editors' Choice Awards Winner (three separate Product Awards)
- 2014 - Best Sound (Cost No Object) - AXPONA 2014 (from The Absolute Sound)
- 2014 - Stereophile Editors' Choice, Class "A" Rated Component
- 2014 - Stereophile - Recommended Components
- 2014 - The Absolute Sound - Editors' Choice Awards Winner
- 2013 - The Absolute Sound - Product of the Year Awards Winner
- 2013 - Stereophile Editors' Choice, Class "A" Rated Component
- 2013 - Stereophile - Recommended Components
- 2012 - Stereophile Editors' Choice, Class "A" Rated Component
- 2012 - Stereophile - Recommended Components
- 2012 - Positive Feedback Oasis Award - RMAF
- 2012 - Positive Feedback Oasis Award - Newport Beach
- 2011 - The Absolute Sound - Golden Ear Awards Winner
- 2011 - Stereophile Editors' Choice, Class "A" Rated Component
- 2011 - Stereophile - Recommended Components
- 2011 - Positive Feedback - Brutus Award Winner
- 2011 - Sixmoons Lunar Eclipse Award (as Spatial OEM version)
- 2011 - Positive Feedback Oasis Award - Newport Beach
- 2010 - Stereophile - Product of the Year Award Winner
- 2010 - Stereophile Editors' Choice, Class "A" Rated Component
- 2010 - Stereophile - Recommended Components

Chronology / Milestones:
- December 1995 - Channel D founded
- December 1996 - *DeltaVideo is released; world's first video motion detection and motion tracking software for a personal computer
- June 1997 - *Mac the Scope audio signal analyzer software is released and demonstrated at MacWORLD Expo, Boston
- December 1998 - *Waavebox audio signal generator software is released; first demonstrated at MacWORLD Expo San Francisco, January 1999
- December 2002 - Work begins on Pure Vinyl™ software
- February 2006 - *AudioLeak loudness measurement software released (now used world-wide by the broadcast industry)
- June 2006 - *Pure Vinyl™ is released
- October 2006 - Channel D hosts our first demo room (Room 517) at Rocky Mountain Audio Fest in Denver, featuring Pure Vinyl™
- August 2007 - The world's first high resolution stand-alone (not bundled with a computer) audiophile music player software released: the new built-in "Link with iTunes" music file player mode of Pure Vinyl, demonstrated at Rocky Mountain Audio Fest, October 2007
- November 2008 - Our innovative (with an unprecedented -3 dB, 5 megahertz bandwidth) ultra low distortion rechargeable battery powered balanced *Seta® Phono Preamplifiers begin shipping
- March 2010 - *Pure Music® software is released and demonstrated at AXPONA
- June 2010 - U.K. Patent GB2454106 granted to R. Robinson / Channel D for Pure Vinyl's cue guide image creation technology
- May 2011 - World's first DSD-capable audiophile music server software released (for streaming native DSD with DoP or real time DSD to PCM conversion for other DACs); and world's first audiophile music server software with streaming support ("Playthrough / Streamthrough" feature) for Spotify, Qobuz, etc.: Pure Music version 1.8, demonstrated at Newport Audio Expo, June 2011
- April 2014 - Channel D AXPONA exhibit room honored with "Best Sound - Cost No Object" accolades by The Absolute Sound
- May 2014 - U.S. Patent US 8,738,163 B2 granted to R. Robinson / Channel D for Pure Music and Pure Vinyl's proxy file playback technology
- July 2014 - U.S. Patent US 8,793,580 B2 granted to R. Robinson / Channel D for Pure Vinyl's Cue Guide image display
- April 2015 - *Lino™ Moving Coil Phono Preamplifier Ships
- August 2016 - U.S. Patent US 9,389,827 B2 granted to R. Robinson / Channel D for Pure Vinyl's Cue Guide image display
- April 2017 - Pure Vinyl Version 5 released; demonstrated at AXPONA 2017
- April 2017 - Seta L20 Phono Preamplifier introduced and demonstrated at AXPONA 2017
- April 2018 - Lino C Phono Preamplifier introduced and demonstrated at AXPONA 2018
- December 2018 - Seta L20 mk2 Phono Preamplifier introduced
- December 2022 - Lino C 3.3 Phono Preamplifier awarded coveted "Class A Plus" rating by Stereophile Editors

* All Hardware Designed / Software Designed and Written by Rob Robinson