All-discrete class-A pre-amplifier with balanced and unbalanced outputs.

Available on back-order




CD DAC Pre-Amplifier


Combining very high performance and versatility, the CDA2 combines a CD player, pre-amplifier and high-resolution DAC within a compact and elegant chassis.

Acting as the source or combined with a streamer and/or external phono stage, it can partner with active speakers to form an exceptional system with minimal ‘box-count’.

Alternatively, the CDA2 can combine with a power amplifier such as the ATC P2 to drive passive loudspeakers with stunning results.

Features; ATC CDA2

  • All-discrete class-A pre-amplifier with balanced and unbalanced outputs.
  • Two analogue inputs via RCA/phono and one via 3.5mm mini-jack.
  • High performance CD Player.
  • Premium AKM 32-bit DAC.
  • USB digital input supporting up to 384kHz PCM data and native DSD256.*
  • Headphone amp featuring discrete output stage.
  • Roon Tested Certification
  • Handmade in England.
  • 6 year warranty.**

*DSD256 support via PC only (up to DSD128 via Mac).
** TWO years on CD mechanism.

Roon Tested

Roon’s fundamental goal is to provide a consistently stellar user experience.

This goal doesn’t stop at the software… the experience extends all the way down to the audio playback hardware, regardless of manufacturer.

As a Roon Tested partner, ATC has provided equipment to Roon for testing with a variety of different operating systems and computers, and shared information about its design and capabilities.

ATC have a direct relationship with Roon and in many cases, the Roon support team has their devices on hand, so you can confidently choose to use ATC hardware with Roon.

Specifications: ATC CDA2

Specifications: ATC CDA2


THD: < 0.0015% / -96dB (1kHz re. 2V out) 

Frequency Response : +/- 0.2dB  (20Hz–20kHz)


Frequency Response: < 2 Hz – > 280 kHz (-3dB)

Distortion: <0.0008% / 102dB (1kHz)

S+N/N Ratio: >112dB (IEC ‘A’)

Crosstalk: < -80dB (20Hz – 20kHz)

Input sensitivity: Aux inputs 600mV, 3.5mm inputs 400mV (re. 2V out)

Maximum Output Level – Balanced XLR: 18.4V r.m.s. (600 ohms)

Maximum Output Level – Un-Balanced: 9.2V r.m.s (600 ohms)

Analogue Pre-Amp Outputs: 1 x balanced stereo pair via XLR, 1 x unbalanced stereo pair via RCA/Phono

Headphone Amp Outputs: 1 x via 6.35mm jack

Analogue Inputs: 2 x stereo pairs via RCA/Phono, 1 x via 3.5mm jack   


Digital Inputs: 1 x TOSLINK, 1 x Coaxial, 1 x USB Audio

Distortion: <0.001% at all supported sample rates

Supported Formats TOSLINK: Up to 24/96 PCM

Supported Formats Coaxial: Up to 24/192 PCM

Supported Formats USB: Up to 32/384 PCM.
Up to DSD256 via Windows/Linux.
Up to DSD128 via Mac.

Dimensions: 94 x 449 x 327mm /3.7 x 17.7 x 12.9 inches (H x W x D inc. chassis connectors)

Weight: 6.35kg / 13.97lbs

CDA2 Audio Venue



ATC - Loudspeakers Formed in 1974 by Billy Woodman to manufacture custom drive units for the professional sound industry. ATC quickly made its mark with the 12″ PA75-314 driver, a design capable of handling more power and producing less distortion at a higher sound pressure level than any other unit on the market. 1976 saw the first production of the ground-breaking SM 75-150s soft dome midrange driver, a technical tour-de-force, whose innovative up-scaled design reproduced a more uniform dispersion, wider bandwidth and much lower distortion than was thought possible at the time. It revolutionised studio monitoring and has since become recognised as the ultimate mid-range transducer for both domestic and professional applications. Utilising exotic materials and precision tolerances, the latest version of the SM 75-150s represents the apex of drive unit technology. It is often copied but never equalled. The next decade witnessed the introduction of complete speaker systems and further versions of the high power PA drive units used in OEM form by many leading manufacturers and performers – Pink Floyd and Supertramp were early customers. During this period ATC researched and developed the first active system elements, introducing the EC23 Active Crossover with built in phase correction. A contract with Danish Radio for an active portable monitor provided the opportunity to integrate the new SCM50 and SCM100 speakers with a Tri-amp pack and electronic crossover to create the industry standard SCM50A and SCM100A, the first reliable and accurate active systems. With regular fine tuning they remain as popular today in both professional and hi-fi applications.
With regular fine tuning they remain as popular today in both professional and hi-fi applications. Having established a market for reference quality precision-made monitors, a succession of smaller ATC speakers then evolved, ranging from SCM7s through 10s and 20s. Available in both active and passive versions, they offered elite ATC performance and reliability to many new customers. 1996 welcomed the launch of ATC’s first stand alone audiophile electronics. Both SCA2 pre-amplifier, SPA2-150 power amplifier and later the SIA2-150 were built according to ATC’s no compromise philosophy, achieving performance figures that still rank as among the best available. In their latest versions they continue to offer unrivalled precision and performance. In the same year Billy Woodman and his research team developed an innovative new driver topology designed to eliminate the effects of magnetic hysteresis as a significant source of distortion in loudspeaker drive units. Utilising a new material from the communications industry, ATC’s Super Linear (SL) driver reduced third harmonic distortion by 10-15dB between 100Hz and 3kHz. Arguably the most significant development in transducer design in the last 15 years, SL technology epitomises ATC’s commitment to sound quality. The SL drivers’ accuracy in reproducing piano and male vocals remains unique. Through ATC’s commitment to multi-channel mastering and its direct involvement with leading players in the professional audio industry including Sony Music and Telarc, ATC’s products are installed at some of the world’s most prestigious multi-channel studios and auditoria. Where ever the best is required you will find ATC.

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