tracktion Copper Reference Stereo Interface

tracktion Copper Reference Stereo Interface

tracktion Copper Reference Stereo Interface


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Expected availability: 7-14 business days

Product Highlights

  • High Speed USB 2.0 Computer Interface
  • 1/4" XLR Analog Inputs
  • Defeatable Tube Stage on Analog Inputs
  • S/PDIF, AES & BNC Wordclock I/O
  • Hi-Z & 48V Phantom Power Switches
  • 1/4" Headphone Out
  • Low-Latency Monitoring
  • ESS 9038 Pro Sabre DAC, AKM AK4396 ADC
  • 140 dB Dynamic Range on DAC
  • Included Custom Pelican Case
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This item is noncancelable and nonreturnable.

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  • 1Description

The Tracktion Copper Reference Stereo Interface is a two-channel, audiophile grade ADC/DAC for professional audio applications. It sports the ability to monitor sound from USB, analog, or other digital sources (AES/EBU and S/PDIF), as well as wordclock I/O for syncing with other clocks and outputting wordclock to other devices.

Two channels are on hand for recording audio into your DAW of choice (though obviously Tracktion has a preference for which DAW you’d use). Both channels feature combination XLR 1/4” inputs to accommodate microphones, line-level signals, and instruments. You’ll also note the prominent 12AX7 tubes on the unit; there’s one for each input channel, and both can be defeated at will if you’d prefer a solid-state tone to the gentle saturation of tubes. This tube stage was designed by Michael Solvano, and is intended to give you some warm harmonic distortion, should you desire it. 

On the front of the device you’ll find Hi-Z and 48V phantom power switches, as well as a 1/4" headphone output that allows for latency-free monitoring while you record. On the rear, you'll notice connections for S/PDIF, AES/EBU, wordclock, USB Type-C, monitor outputs, and your analog inputs.

The unit itself is encased in solid copper, and employs an ESS 9038 Pro Sabre DAC chip. Two AKM AK4396 chips are used in the ADC. These chips sum quad to stereo, effectively facilitating an extra 3 dB of dynamic range that wouldn’t be achievable otherwise. On the DAC side, you’ll experience a dynamic range of 140 dB, as well as a relatively low THD level of -122 dB. A custom Pelican case is included with the Copper Reference.

Key Features at a Glance
2-channel audiophile audio interface

2 mic/line inputs sporting THaT Semiconductor 5171 chips

Monitors Analog, AES, SPDIF or USB

Custom grown TCXO Fox Crystals, Word Clock I/O and digital synch

USB Type C with XMOS 8 core processor and universal driver

Headphone output with zero latency monitor mix

Volume bypass for integration with professional monitor controllers

ESS 9038 Pro Sabre DAC

2x AKM AK4396 ADC (summing quad to stereo)

12AX7 tube stage on inputs, designed by Mike Soldano and featuring a hard bypass

Pristine DSP controlled audio signal path

Custom product Pelican case

In the Box
tracktion Copper Reference Stereo Interface
  • Custom Pelican Case
  • Limited 3-Year Warranty (Extendable)
  • Table of Contents
    • 1Description


    Analog I/O 2 x XLR 1/4" combination inputs
    2 x XLR outputs
    1 x stereo 1/4" output, TRS
    Digital I/O 1 x BNC wordclock input
    1 x S/PDIF input, coaxial
    1 x XLR AES/EBU input
    1 x BNC wordclock output
    1 x S/PDIF output, coaxial
    1 x XLR AES/EBU output
    USB USB Type-C with XMOS 8-core processor and universal driver
    DAC ESS 9038 Pro Sabre DAC
    ADC 2 x AKM AK4396 ADC
    Tubes 2 x 12AX7 tubes (one per input) with hard bypass
    THD+N ADC: -114 dB at 1 kHz, -1 dBFS, 20 kHz filter, volume at max
    DAC: -110 dB at 1 KHz, -1 dBFS, 20 kHz filter, volume at max
    Dynamic Range ADC: 124 dB, A-Weighted, -60 dBFS signal method
    DAC: 130 dB, A-Weighted, -60 dBFS signal method
    Max Output DAC: +20 dBu
    Dimensions (Approx.) Approximately 21.0 x 17.0 x 9.0" / 53.3 x 43.2 x 22.9 cm
    Weight (Approx.) 13.0 lb / 5.9 kg


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    tracktion COPPER REFERENCE INTERFACE (AKA CU) accessories

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