ATC Amplifiers

ATC Amplifiers are the product of a British company whose dedication to engineering excellence has remained unwavering since its founding in 1974. From the very beginning, ATC set out to design loudspeakers and audio electronics that follow the most rigorous, modern engineering principles — and the brand has stayed true to that mission for more than five decades.

Rather than simply keeping pace with competitors, ATC has continually pushed the boundaries of what true high-fidelity performance can be. Their goal has always been to create loudspeakers and ATC amplifiers that operate as close to perfection as engineering will allow.


Every ATC amplifier is built to deliver the most accurate, transparent and musical sound reproduction available. Designed to meet and exceed the demands of today’s high-resolution digital recordings, ATC amplification offers the power, precision and control required for both professional studio environments and discerning home audiophiles.


A major milestone came in 1996 with the launch of ATC’s first stand-alone audiophile electronics. The SCA2 preamplifier and SPA2-150 power amplifier — followed by the highly regarded SIA2-150 integrated amplifier — were engineered with ATC’s uncompromising philosophy at their core. Their technical performance remains among the best in the industry, and continual refinement ensures they still provide exceptional accuracy, reliability and value.


For listeners seeking uncompromised musical truth, ATC amplifiers stand as some of the most precise, powerful and transparently engineered audio components available today.


ATC (Acoustic Transducer Company) is world-renowned for building some of the most transparent, dynamic and studio-grade amplifiers ever created. Trusted by mastering engineers, musicians and high-end audiophiles, ATC amplifiers deliver exceptional clarity, ruler-flat linearity and effortless control — even with the most demanding loudspeakers.


At Brian & Trevors, we are proud to offer the full range of ATC amplifiers for two-channel, active and reference-grade high-end systems.

Why Choose ATC Amplifiers?

Studio-Born, Home Perfected

ATC amplifiers are designed with the same engineering principles found in world-class recording studios. Their circuits prioritise accuracy, neutrality and reliability — delivering the true character of your recordings.

Legendary Transparency

ATC's discreet Class-A and MOSFET output stages are engineered for purity and neutrality. You hear exactly what the artist intended — nothing added, nothing coloured.

Hand-Built in the UK

Every ATC amplifier is hand-assembled, tested and calibrated in Stroud, England. Components are selected for longevity and ultra-low noise performance.

Massive Power Reserves

ATC power amplifiers offer real-world wattage, enormous current delivery and outstanding headroom. 

Effortless dynamics with stable performance at any listening level and total control over low-frequency drivers

ATC Amplifier Range

ATC Pre Amplifiers (CDA2, CA2, SCA2)

ATC offers 3 distinctly different Pre-Amp models that cater for your specific requirements.


Features:

  • Discrete class-A low-noise circuitry throughout
  • Hand built in the UK & covered by a 6–year warranty

ATC CDA2 CD Preamplifier

  • Hand built in the UK
  • Ultra-low noise discrete design
  • Very High Performance 24bit/192kHz capable DAC
  • 2 x analogue inputs
  • 2 x digital inputs
  • 6 year warranty (excludes CD mechanism which is covered by a 12 month warranty)

ATC CA2 Stereo Preamplifier

  • Hand built in the UK.
  • Ultra-low noise discrete design.
  • 6 phono inputs.
  • XLR and phono main outputs.
  • Additional Sub, Tape and Headphone outputs.
  • On-board RIAA phono stage.
  • 6 year warranty

ATC SCA2 Discrete Stereo Preamplifier

  • Hand built in the UK.
  • 2 balanced stereo inputs and balanced output.
  • 6 phono inputs.
  • Fully discrete Ultra-Low noise circuitry throughout.
  • Optional Ultra-Low Noise discrete RIAA phono stage.
  • 6 year warranty.

ATC Stereo Integrated Amplifiers (SIA2-100, SIA2-150)

Musical, powerful and refined, ATC integrated amplifiers deliver exceptional stereo performance with true analogue purity. Ideal for high-resolution listening rooms.


Features:

  • Reference-grade preamp section
  • High-current output stage
  • Multiple analogue inputs
  • Exceptional detail retrieval

SIA2-100 Stereo Integrated Amplifier

  • 2 x line level analogue inputs. 
  • 3 x digital inputs: USB, Coaxial, TOSLINK. 
  • Premium AKM 32-bit DAC. 
  • USB digital input supports up to 384kHz PCM data and native DSD256.* 
  • 2 x 100W Discrete MOSFET Output Stage 
  • Headphone amp featuring discrete output stage. 
  • Handmade in England & covered by a 6 year warranty.

SIA2 150 Stereo Integrated Amplifier

  • 150 watts per channel.
  • Class A/B operation.
  • Hand built in the UK.
  • 5 RCA inputs.
  • Record, sub and pre outputs.
  • Headphone jack.
  • Remote control.
  • 6 year warranty.

ATC Power Amplifiers (P1, P2, P4, P6 Pro)

Designed for demanding speakers and reference systems. Huge power supplies, massive transformers and bulletproof thermal stability.


Highlights include:

  • 150W to 300W per channel
  • Outstanding damping factor
  • Ultra-stable into low impedances
  • Fully discrete circuit design


ATC P1 Dual Mono Power Amplifier

  • 150 W per channel
  • True dual-mono design delivers full power simultaneously from both channels, with minimal crosstalk
  • Grounded source class A/B circuit topology as found in ATC’s renowned active loudspeakers.
  • Ultra wide bandwidth, low distortion and high dynamic range ensure tonal accuracy and perfectly timed transient.
  • No compromise, high performance power supply and large heatsinks guarantee outstanding stability and long term reliability.
  • Neutral fidelity ensures excellent product compatibility.
  • Hand built in the UK and supported by a 6 year warranty.

ATC P2 Power Amplifier

  • 300W per channel
  • True dual-mono design delivers full power simultaneously from both channels, with minimal crosstalk
  • Grounded source class A/B circuit topology as found in ATC’s renowned active loudspeakers
  • Ultra wide bandwidth, low distortion and high dynamic range ensure tonal accuracy and perfectly timed transients
  • No compromise, high performance power supply and large heatsinks guarantee outstanding stability and long term reliability
  • Neutral fidelity ensures excellent product compatibility
  • Hand built in the UK and supported by a 6 year warranty.

ATC SPA2 150 Discrete Stereo Power Amplifier

  • Hand built in the UK.
  • Dual Mono design.
  • 150W into 8 ohms.
  • Balanced.
  • Class A/B Operation.
  • 6 year warranty.

ATC P4 Active Amplifier Module

  • 4-way mono block design.
  • ATC “Grounded Source Topology”.
  • 850W Class AB total output.
  • 4th order active crossovers with phase correction.
  • Soft limiting driver protection.
  • Triple fan cooling.
  • 6 year warranty.
  • Only available as part of an ATC active loudspeaker system.

ATC P6 Active Amplifier Module

Dedicated amplifier for the EL150 but can be used with all ATC 3-way products with an ATC adaptor kit.


  • Dual-Mono 3-way design (total 6 channels).
  • 2 x 350W total output power (2x (200W LF, 100W MF, 50W HF)).
  • Ultra low noise discrete design throughout.
  • 3-way active crossovers with phase equalization.
  • Billet and extruded aluminium chassis construction.
  • 6 year warranty.