ATC Amplifiers
Unmatched Power, Precision & Musical Truth
ATC amplifiers are engineered for listeners who value accuracy, control and complete musical honesty. Hand-built in the United Kingdom, every ATC design reflects more than five decades of engineering experience in professional studios, mastering rooms and high-performance home hi-fi systems.
From compact preamplifiers and powerful integrated amplifiers to reference-grade dual-mono power amplifiers and active amplifier modules, ATC delivers exceptional transparency, high current capability and the authority to control even the most demanding loudspeakers.
ATC engineering philosophy
Designed to Add Nothing. Hide Nothing.
ATC amplification is built around a straightforward goal: deliver the musical signal with as little distortion, compression or colouration as possible. The result is a sound that is open, dynamic, controlled and true to the recording.
Studio-Grade Transparency
ATC circuits are designed to reveal the true character of a recording, helping instruments, voices and dynamics arrive with convincing scale and clarity.
Discrete Circuit Design
Carefully implemented Class A and discrete MOSFET stages support low noise, wide bandwidth and a natural, unforced musical presentation.
Massive Power Reserves
High-current output stages, substantial transformers and stable power supplies help ATC amplifiers retain control at both quiet and demanding listening levels.
Built to Last
Hand-built construction, carefully selected components and long-term serviceability make ATC a dependable foundation for a serious music system.
The ATC amplifier range
Build an ATC System Around Your Listening
ATC offers a complete route from compact source-led systems to powerful reference-grade installations. Choose a dedicated preamplifier and power amplifier combination, the convenience of an integrated amplifier, or an active system built around ATC’s own amplification modules.
Control, source selection and system transparency
ATC Preamplifiers
ATC preamplifiers are designed to preserve the purity of the source signal before it reaches a power amplifier. With low-noise discrete circuitry, careful input switching and precision volume control, they form the control centre of a high-end system.
- CDA2 CD Preamplifier with integrated 24-bit / 192kHz-capable DAC and CD playback.
- CA2 Stereo Preamplifier with six analogue inputs, XLR and RCA outputs, plus RIAA phono stage.
- SCA2 Discrete Stereo Preamplifier with balanced connections and optional ultra-low-noise RIAA stage.
- Designed around discrete Class A low-noise circuitry.
- Hand-built in the UK and covered by a six-year warranty.
Power and simplicity in one chassis
ATC Stereo Integrated Amplifiers
ATC integrated amplifiers combine a high-quality preamplifier section with the brand’s respected MOSFET power amplification. They are ideal for music systems where analogue purity, real-world power and straightforward operation are all essential.
- SIA2-100 with 2 × 100W MOSFET output stage and premium AKM 32-bit DAC.
- Digital connectivity including USB, coaxial and TOSLINK on the SIA2-100.
- SIA2-150 with 150 watts per channel in Class A/B operation.
- Analogue inputs, record, subwoofer and preamp outputs for flexible system integration.
- Headphone output and remote control for convenient everyday listening.
- Handmade in England and supported by a six-year warranty.
Reference control for demanding loudspeakers
ATC Power Amplifiers
Built for systems that demand serious drive and absolute control, ATC power amplifiers use true dual-mono architecture, substantial power supplies and the company’s grounded-source Class A/B topology.
- P1 Dual Mono delivers 150W per channel with excellent channel separation.
- P2 Power Amplifier delivers 300W per channel for demanding reference systems.
- SPA2-150 offers a balanced 150W-per-channel stereo power solution.
- Wide bandwidth, low distortion and high dynamic range for accurate transient response.
- Large heatsinks and robust thermal stability support reliable long-term performance.
- Neutral, transparent amplification suitable for a wide range of high-end loudspeakers.
Product availability, finish options, system suitability and exact specifications should be confirmed before purchase. We will recommend the most appropriate ATC solution around your loudspeakers, source components and listening room.
Key ATC amplifier models
Choose the Right Level of Performance
The right ATC amplifier depends on your source components, loudspeakers, room and the level of scale, control and system flexibility you want to achieve.
CDA2, CA2 & SCA2
Preamplifier solutions for systems that require analogue and digital source connection, high-quality volume control and low-noise line-level performance.
- CD and DAC functionality available with CDA2.
- Phono stage capability available on selected models.
- Balanced connection options on SCA2.
SIA2-100 & SIA2-150
Integrated amplification for listeners seeking a compact, powerful and refined way into the ATC sound without the need for separate power amplification.
- Powerful discrete MOSFET output stages.
- Digital connectivity available with SIA2-100.
- 150W-per-channel Class A/B output with SIA2-150.
P1, P2 & SPA2-150
Separate power amplifiers for high-performance systems where maximum control, headroom and loudspeaker drive are the priority.
- 150W to 300W per channel, depending on model.
- Dual-mono architecture and high-current supplies.
- Designed for excellent low-impedance stability and dynamic control.
ATC active amplification
Amplification Designed Around the Loudspeaker
ATC’s active systems use purpose-designed amplifier modules and electronic crossovers matched directly to the loudspeaker drive units. This allows each driver to receive the power and control it needs without the compromises of a conventional passive crossover.
- P4 Active Amplifier Module with four-way monoblock design and 850W total Class A/B output.
- P6 Active Amplifier Module with a dual-mono three-way configuration and six channels in total.
- Active crossovers with phase correction for precise integration between drive units.
- Soft limiting and advanced cooling for dependable long-term operation.
- Available as part of specially configured ATC active loudspeaker systems.
“When the amplifier and loudspeaker are designed as one system, control, timing and transparency can reach another level.”
At Brian & Trevor, we can demonstrate ATC passive and active systems, help you compare integrated and separates configurations, and build a system that suits your room, music and long-term ambitions.
Hear ATC properly
Experience Power Without Colouration
ATC amplifiers are best appreciated in a properly matched music system, where their transparency, headroom and effortless loudspeaker control can be heard in context.
Book a Demonstration
Hear ATC integrated amplifiers, separates or active systems in a carefully set-up listening environment.
Book an AppointmentMatch Your Loudspeakers
Discuss the power, control and connection requirements of your loudspeakers and source components.
Ask for AdviceExplore ATC Loudspeakers
Discover the ATC loudspeaker range and the benefits of a fully matched active or passive system.
View ATC Loudspeakers