Chord Blu Mk II Upscaling CD transport

Chord Blu Mk II Upscaling CD transport

There’s a lot more to the Chord Blu MkII than CD replay. I fact this has to be the first CD transport that we’ve ever auditioned without even bothering with a CD!

Basically, put this between, say, a Melco or Innuos music server and Dave and you will hear more physical depth, space, content, music and ‘stuff’ than you ever realised was in the recording. It works with 16/44.1 CD resolution or hi-res 24/96 recordings. It’s bizarre and even Rob Watts the designer finds the reasons hard to fathom. For us, it was a huge revelation.

Chord describe the Blu MkII as a compact, FPGA-based upsampling CD transport which offers the world’s most advanced filter technology. Used with DAVE, the combination delivers class-leading CD sound quality and technical performance.

“Put simply, the Blu MkII upscaling CD transport sets new standards for CD sound quality by using the very latest FPGA technology to implement advanced proprietary filtering and upscaling techniques. Our next-generation CD transport incorporates a powerful new FPGA core with extraordinary capability.

Blu MkII’s sophisticated WTA (Watts Transient Alignment) filtering and upscaling algorithms can output digital data at 705.6kHz (16 x CD’s 44.1kHz native resolution). When partnered with the critically acclaimed DAVE DAC/preamp, with its 705.6kHz-capable digital inputs, the Blu MkII sets a new technical benchmark for CD performance, while redefining sound quality from the medium.

At the heart of the Blu MkII lies an enormously powerful Xilinx FPGA. Rob Watts’ (Chord’s Digital Design Consultant) has used this to create his exclusive WTA M-Scaler technology, which incorporates the most advanced filter of its kind in the world. The Xilinx FPGA has also enabled a key breakthrough in tap-length (the technical indicator of how complex the interpolation filter is) taking Blu MkII to an unprecedented 1,015,808 taps.

A comprehensive suite of high-performance connectivity is offered and the Blu MkII also features a USB digital input, meaning that it can also be used a standalone high-performance upsampler, for use with other digital sources.

Further features include Chord Electronics’ legendary proprietary high-frequency switching power supply and a dedicated CD-only laser mechanism for an uncompromising performance.

Technical specifications:

Chipset:                                           Chord Electronics custom coded Xilinx XC7A200T FPGA

Tap-length:                                    1,015,808 (16FS filter)

FPGA current draw:                  10amps

Frequency response:                 0Hz (DC) – 20kHz +/- 0.0000001dB

In-band ripple 0Hz-20kHz:    +/- 0.0000002dB

Stop band rejection:                   -135dB

THD and noise (24bit input): -144dB

Noise 2.6 uV ‘A’ weighted:       No measurable noise floor modulation

Signal to noise ratio:                   126dB ‘A’ Weighted

Power supply:                               90v AC – 24v AC Auto-Switching

Power consumption:                  30w

Weight:                                           7kg

Dimensions:                                 333.5mm (W) x 98.5mm (H) x 142 (D)

 

Features

Materials:                                 Precision machined Choral aluminium casing designed by John Franks

CD Resolution:                      44.1kHz – 705.6kHz (user configurable)

Connectivity (input):         1x USB input: 44.1kHz, 48kHz, 88.2kHz, 96kHz, 176.4kHz, 192kHz, 352.8kHz, 384kHz, 705.6kHz, & 768kHz

1x BNC S/PDIF: 44.1kHz – 384kHz (upsampled)

Connectivity (output):

1x Single AES Option: 44.1kHz & 88.2kHz

1x Dual AES Option: 88.2kHz & 176.4kHz

1x Single BNC S/PDIF Mode: 88.2kHz, 176kHz, & 352.8kHz

1x Dual BNC S/PDIF Mode: 176.4kHz, 352.8kHz, & 705.6kHz

 

User Configurable Options:

Selectable upsampling:     1x selectable switch providing three sample rates

Dither:                                     On/Off (Only operational with 16bit source)

Control options:                   Manual

Remote control (included – upsampling modes not accessible via remote operation)

KEY FEATURES

Chord Custom Coded FPGA

1,015,808 Taps

Philips CD Pro 2 Mech

HF Switch Mode Power Supply

Upsampling to 768kHz

768kHz USB Input

384kHz BNC S/PDIF Input

AES Output to 176.4kHz

Dual Data Mode BNC to 705.6kHz

DXO Outputs

Solid Aluminum Chassis

Convection Cooled

IR Remote Control Included

INCLUDED ACCESSORIES

1.5m 10a IEC Mains Power Lead Reference Blu Mk. II Remote Blu Mk. II Owners Manual

OTHER ACCESSORIES & CUSTOM OPTIONS

Precision machined from a solid block of aircraft grade aluminium, a work of art on its own, the Ensemble Stand is irrefutably the most satisfying way to display your Choral system components or stack.

 

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