ATC SCS70 Pro 12” Active Subwoofers

300-watt, 12″ Active Studio Subwoofer with Infinite Baffle Design, 4 LP Filters, Momentary Gain Reduction, and Active Limiter Protection Circuits

SKU: atc11C Category:


The ATC SCS70 Pro is a 12”/300mm active subwoofer, designed to deliver the exceptional levels of performance required by audio and music professionals and integral to partnering with ATCs range of active monitors. It’s performance and features make it ideally suited to stereo, multi-channel surround and immersive audio formats such as Dolby Atmos.


ATC SCS70 Pro Features:

  • High-performance subwoofer with custom driver and amplification
  • Proprietary SS75-314SC driver with hand-wound voice coil
  • Reference-grade, convection-cooled amplifier
  • Infinite baffle cabinet design
  • Comprehensive control and connectivity
  • LF cutoff: 22Hz (-6dB, half space, lowpass filter set at 80Hz)
  • Lowpass filters: 50Hz, 65Hz, 80Hz, 320Hz (-6dB, 4th order Linkwitz Riley)
  • Max SPL: 110dB continuous, 116dB peak (IEC-weighted pink noise, measured at 1m, half space, lowpass filter set to 80Hz)
  • Sensitivity: +4dBu, ref 88dBC (Gain +6dB, Level 0dB, pink noise, lowpass filter set to 80Hz)
  • Amplifier type: grounded-source MOSFET-based Class AB, convection cooled
  • Output power: 300 watts (into 8 ohms)
  • THD+N: <0.003%/-90dB, at 100Hz, 300W into 8Ω over 90kHz bandwidth
  • Input CMRR: 90dB at 200Hz
  • Input impedance: approx. 20k ohms (differential)
  • Output impedance: approx. 100 ohms (differential)
  • Frequency response: <2Hz (-3dB) to 320Hz (-6dB, set via panel-controlled LP filter)
  • Gain control: 0, +6dB, +10dB
  • Level control: 0dB–11dB in 1dB steps; total range: 21dB vis Gain switch
  • Phase control: 0–180° (ref. Input, continuous)
  • Polarity flip: in/out (ref. Input, via switch)
  • Limiter: ATC active FET momentary gain reduction, active limiter indicated on front panel
  • Handcrafted in England
  • Dimensions: (H x W x D): 568 x 464 x 500mm / 22 5/16 x 18 1/4 x 19 11/16 inches
  • Weight: 44kg / 97lbs.
  • Manual here
  • Also available SCS70iW Pro (In Wall Version)
  • ATC 6-year warranty


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Additional information

Weight 10 kg

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