ATC C1 sub

The ATC C1 Sub Mk2 is a high-performance active subwoofer designed to extend low-frequency response in both hi-fi and home cinema systems. In addition, it integrates seamlessly with a wide range of ATC loudspeakers, making it a flexible choice for stereo and surround setups.

The C1 Sub Mk2 delivers deep, controlled bass with precision and authority. As a result, it enhances both music playback and film soundtracks while maintaining tight timing and low distortion.

12-inch high-performance bass driver

The subwoofer uses a 12-inch (314 mm) ATC bass driver. Therefore, it produces deep and powerful low frequencies with excellent control. In addition, the large motor assembly helps maintain accuracy even at high output levels.

High-quality amplifier design

ATC equips the C1 Sub Mk2 with a 200 W Class A/B discrete MOSFET amplifier. As a result, it delivers clean and stable power with low distortion. At the same time, it ensures consistent performance during both quiet listening and demanding playback.

Precision motor and coil engineering

The driver features a massive motor assembly with a hand-wound precision flat wire coil. Therefore, it achieves high control and fast response. In addition, this design improves bass accuracy and reduces unwanted resonance.

Flexible system tuning

The C1 Sub Mk2 offers user-adjustable gain and low-pass frequency controls. As a result, it can be fine-tuned to match different speakers and room acoustics. Furthermore, adjustable polarity and continuously variable phase allow precise integration into any system.

Seamless speaker integration

The subwoofer is compatible with a wide range of ATC loudspeakers, including SCM and HTS series models. Therefore, it integrates easily into both stereo and surround sound systems. In addition, it helps extend system bandwidth for a fuller and more immersive sound.

Main Features

• Active high-performance subwoofer
• 12-inch (314 mm) ATC bass driver
• 200 W Class A/B discrete MOSFET amplifier
• Hand-wound flat wire voice coil motor assembly
• User-adjustable gain and low-pass frequency
• Adjustable polarity and continuously variable phase
• Designed for seamless integration with ATC speakers
• Deep, controlled, and accurate bass response
• Available finishes: Cherry, Black Ash, Satin Black, Satin White
• 6-year warranty