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Chord Electronics Quartet Digital Upscaler - Ships Late November - Early December
Reference-class digital upscaler processor • multi-stage WTA interpolation filter algorithm • ultra-advanced FPGA processing architecture • dual-BNC 768kHz digital upsampling • galvanic isolation on USB • aircraft-grade billet aluminum chassis
The Chord Electronics Quartet Digital Upscaler redefines the boundary of digital audio fidelity, elevating digital source resolution through unmatched interpolation and timing precision. Engineered in Kent, United Kingdom, this state-of-the-art stand-alone upscaling processor employs proprietary FPGA hardware running Rob Watts' legendary Watts Transient Aligned (WTA) filtering algorithms. Capable of upscaling standard Red Book audio and high-resolution digital streams up to 705.6kHz and 768kHz via Dual-BNC output conduits, it restores transient timing, instruments' spatial depth, and holographic dimensional realism before signal conversion by external digital-to-analog converters.
Key Features & Innovations
Advanced FPGA-Powered WTA Filtering — the Chord Electronics Quartet Digital Upscaler harnesses massive FPGA computational power to execute advanced WTA reconstruction algorithms, aligning transient timing with microsecond precision.
768kHz High-Definition Dual-BNC Output — outputs native 705.6kHz (from 44.1kHz sources) and 768kHz (from 48kHz sources) over dual-data coaxial BNC connections to extract maximum resolution from compatible reference DACs.
Galvanically Isolated Asynchronous USB Input — features a comprehensively isolated USB stage that strips away ground-plane noise and RF interference originating from source computers or network streamers.
Versatile Digital Audio Ingest — processes signals from an array of digital inputs, including dual optical Toslink, galvanic BNC coaxial, and USB-B, supporting seamless multi-source system integration.
Precision CNC Aircraft-Grade Aluminum Casework — machined from a solid billet of aircraft-grade aluminum to shield delicate processing cores against electromagnetic and radio-frequency noise.
FAQ — Chord Quartet Upscaler
How does the Chord Electronics Quartet Digital Upscaler connect to a DAC?
The Chord Electronics Quartet Digital Upscaler connects to a digital-to-analog converter using its high-speed Dual-BNC outputs (for 705.6kHz/768kHz transmission) or standard single-cable coaxial and optical outputs for universal DAC compatibility.
Does this unit contain an internal digital-to-analog converter?
No, the Quartet is a pure digital-to-digital processor designed exclusively to upscale and re-clock digital streams before sending them to an outboard DAC such as the Chord DAVE, TT 2, or Qutest.
What audio sample rates can be upscaled by the Quartet?
It accepts standard 44.1kHz CD audio up to 384kHz PCM and upscales the digital stream up to 16x (705.6kHz / 768kHz) depending on the source's native sample rate family.
Where is Chord Electronics equipment designed and manufactured?
Every Quartet upscaler is designed, hand-assembled, and tested at Chord Electronics' specialized manufacturing facility in East Farleigh, Kent, United Kingdom.
Why Buy From Us
Authorized Chord Electronics dealer providing 100% factory-authentic reference equipment with full manufacturer warranty protection
Expert digital hi-fi consultants available to assist with DAC matching, Dual-BNC cabling, and system integration
Dedicated post-purchase technical support for high-resolution driver configuration and source alignment
Fast, fully insured priority shipping in heavy-duty protective packaging on every order
Related & System Matches
Chord DAVE / Hugo TT 2 / Qutest digital-to-analog converters
Chord Electronics Choral & Table Top reference system stands
True 75-Ohm precision high-bandwidth Dual-BNC digital cables
