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WTA Technical

Source Components

RED Reference CD Player

Building on the success of the Blu and the DAC64, the RED Reference CD player has been designed as the ultimate source component. With stunning looks and state of the art design the RED utilizes ground breaking technology to give the most accurate reproduction of compact disc that can be obtained. With internal 176.4 KHz upsampling data transfer, selectable RAM buffer clock retiming and both 1024 and 4096 tap length filtering, the RED earns its reference status in the Chord range.
Starting on the outside the RED features the Chord trademark design and is manufactured from solid aluminum giving a rigid support structure for the CD mechanism. The front panel design incorporates ball bearing push button control for the commonly used functions and a dual display showing CD status on one side and input, buffer and frequency information on the other. Uniquely the CD mechanism sits at 45 degrees to allow front access even if placed on a stand or in a rack. Access to the CD is at the touch of a button operating a solenoid controlled fluid damped door. At the rear connections are made via gold plated phono or BNC coax, plastic optical fiber or balanced XLR style connectors.
Chord RED Reference CD player
(Note: US models are supplied with blue leds not red as shown above.)
Internally the latest CD Pro 2 mechanism from Philips is re-clocked using a highly accurate crystal oscillator then the synchronized data is fed to the upsampling and filtering electronics. Here the 4096 tap length WTA filter is used to minimize the transient timing errors and reconstruct the digital data to either 44.1, 88.2 or 176.4 KHz sampling frequencies.
This data is fed to the rear XLR and optical output connectors and also via a dual data bus to the digital to analogue conversion electronics. Based on the DAC64, the digital signal is converted from 176.4KHz to analogue audio using 1024 tap filtering and 64 bit digital signal processing core. This is followed by 64th bit 7th order noise shaping, 2048 times oversampling rates and improved pulse width modulated elements. This gives much better measured performance. better detail resolution with a smoother more focused sound quality. The DAC also features RAM buffer technology that sequentially takes in all the data, re-times it, then sends it out giving jitter free operation. Digital data from other sources can also be fed into the RED via the optical or AES balanced XLR connections.
All of the above innovations are implemented in Field Programmable Gate Arrays that can be reprogrammed by simply changing the EPROM memory chip, thus future proofing is assured.
The RED Reference is a truly unique product. As a standalone CD player it is able to deliver the best reference CD playback. The addition of digital inputs and outputs also gives it the ability to act as both a CD transport and DAC for other audio components making it completely versatile.

Blu/DAC64 CD PlayerBlu/DAC64 with 2 High - click for large image.

The Blu CD transport is a state-of-the-art, up-sampling ultra-high resolution transport which offers unequalled musical performance with DAC64.
The Chord Blu CD Transport has been designed to match, both in performance and style, the highly successful DAC64 and also completes the Chord Choral range.
The Blu is a direct result of Chord's long term commitment to innovative research, superior engineering and absolute, no-compromise quality. Not only does this incredible achievement place Blu at the forefront of the world's leading music reproduction systems, but a Blu/DAC64 system raises the sound quality attainable from standard 16 bit CDs to a new plateau which truly rivals any source in any format.
The Blu transport offers a huge, dramatic, "night and day" sonic improvement, which will be noticed immediately.
Blu delivers an astonishingly life-like musical performance. This ultra high resolution system delivers far more detail than conventional sources. One can hear more air and space, better separation of instruments, subtle nuances and inner detail. Layers and textures of instruments are more easily discernible. All this without the usual negative trade-offs associated with digital sources. In fact, Blu is smoother and more natural sounding with a distinctly accurate timbre resulting in a more organic, realistic sound. Finally, with a deep wide soundstage and almost perfect timing, Blu delivers the energy, vitality and excitement of a live performance. Click for more comments and full review
"Superb results in every aspect of performance. Wow!"
- John Atkinson, Stereophile Class A+ Recommended Component, October 2007. Winner Stereophile Digital Source Component of the Year. (Click image at right for more info...)
The Blu CD transport shares the same ground breaking technology that has made the DAC64 one of the most successful digital to analogue converters ever produced. As a dedicated state-of-the-art, 2-channel CD transport, Blu will take full advantage of the WTA Filter technology used in the DAC by having it's own 4096 tap length WTA filter.

DAC 64

Chord's revolutionary DAC64 has changed the audio market's attitude about separate Digital to Analogue Converters. In a period that has seen many companies move to single box players only, the DAC64 has proven the superiority of a properly implemented two box design in a high quality audio system.
The DAC64 is the world's first 64 bit DAC. It's innovative RAM buffer dramatically lowers jitter distortion. This breakthrough product gives you the best of both worlds - more detail and a smoother more natural sound, so you no longer have to choose between the usual tradeoffs. The DAC64 has received incredible accolades the world over including the top awards from the industry's most respected reviewers.
The DAC64 can be purchased separately and used with any CD player which has a digital output. The DAC64 on its own will prove to be the single most cost effective upgrade you can make to your hi-fi.
"It's not often a product leaves me gobsmacked, but the Chord DAC64 has done just that. I don't think I can live without one. It's like upgrading your entire CD collection at a stroke!"
  - Jimmy Hughes, HiFi+ Magazine.  
"If you thought Jimmy's review was enthusiastic you should hear what he says in private."
  -  Product of the Year Awards, HiFi+ Magazine, March/April 2001 
"It's very unusual to find components that simply blow away the competition but the Chord DAC and transport system does just that." - Ernie Fisher, The Inner Ear, 2005

One CD Player

The One is Chord's more affordable, one-box CD player which offers superior performance. Chord's One features the same professional die-cast CD mechanism and isolated top-loading arrangement as Chord's flagship Blu CD transport. The latest 24-bit 192kHz devices provide digital to analogue conversion. A fully buffered true balanced analogue output stage ensures the best possible musical performance.
RCA and XLR balanced analogue outputs, plus BNC SPDIF coaxial digital ensures compatibility with a wide variety of audio systems. The One (below) can also be upgraded by adding the DAC64.

Symphonic Phono Stage

Chord offers an outstanding MC phono stage. The Symphonic is part of the Choral range, (same dimensions as DAC64, One, etc. With push-button adjustable gain and loading, the Symphonic can be easily configured to match virtually any MC phono cartridge.
"With its outstanding background quietness, enormous gain, overall richness, harmonic coherence, and supple yet slam-bang bass performance, the Chord Symphonic is easy to recommend."  - Michael Fremer, Stereophile, March 2007