New ATC SCS120 Pro Subwoofer
The new ATC SCS120 Pro is a 15”/375mm active subwoofer, designed to deliver the exceptional levels of performance required by audio and music professionals and support ATCs range of active monitors. The subwoofers high dynamic range makes it ideally suited to critical monitoring in larger rooms and when paired with larger mid-field and main-monitors and across a very wide range of applications and audio formats including stereo and multi-channel surround plus immersive audio formats such as Dolby Atmos.
The closed design subwoofer is also available as an in-wall model SCS120iW Pro which comes with a separate wall- or rack mountable amplifier.
Overview
- High performance sealed box design using 15”/375mm ATC proprietary sub driver.
- Ideal partner to the SCM45A/SCM50A/SCM100A/SCM110A/SCM150A/SCM200A/SCM300A Pro monitors.
- Suitable for use in stereo, surround and immersive audio applications.
- On-board 300W convention cooled discrete MOSFET class A/B amp.
- 2 x balanced XLR inputs
- 2 x balanced XLR outputs (un-filtered/processed).
- User adjustable gain, low pass frequency, polarity and phase settings.
- Remote sub muting via latching footswitch*
- In-Wall variant with remote amplifier also available – the SCS120iW Pro.
- * Footswitch supplied separately, latching type, ¼”/6.35mm jack connection.
Acoustic Specifications
- Drive Unit – Bass: 1 x ATC SS75-375SC 8Ω.
- Low Frequency Cut-off: 20Hz (-6dB, half space, low pass filter set at 80Hz).
- Low Pass Filters: 50Hz, 65Hz, 80Hz, 320Hz. (-6dB, 4th order Linkwitz Riley).
- MaxSPL: 113dB continuous, 119dB peak (IEC Weighted Pink Noise, measured at 1m, half space,
- low pass filter set at 80Hz).
- Sensitivity: 85dBC, ref. -17dBu (single channel driven, Gain +6dB, Level 0dB, pink noise, low pass filter set at 80Hz).
Electronic Specifications
- Balanced Input: 2 x Rear Panel Mounted Female XLR, pin 2 hot.
- Input Impedance: Approx. 20kΩ (differential).
- Input CMRR: 90dB at 200Hz.
- Input Sensitivity: 1.12Vrms for full power (single channel driven, Gain 0dB, Level 0dB).
- Gain Control: 0, +6dB, +10dB.
- Level Control: 0dB -11dB in 1dB steps. Total range 21dB with use of Gain switch.
- Phase Control: 0-180° ref. Input.
- Polarity Control: In-phase/Out-of-phase ref. Input.
- Low Pass Filters: 4th Order Linkwitz Riley.
- Output Impedance: Approx. 100Ω (differential).
- Amplifier type: Grounded Source MOSFET based Class A-B, convection cooled.
- Output Power: 300W in to 8Ω.
- THD+N: <0.003%/-90dB, at 100Hz, 300W into 8Ω over 90kHz bandwidth.
- Frequency Response: <2Hz (-3dB) – 320Hz (-6dB, set by panel-controlled LP filter).
- Limiter: ATC Active FET Momentary Gain Reduction, active limiter indicated on front panel.
- Electronic Amp Protection: Amplifier D.C Offset and over-temperature (both indicated on rear panel).
- Power Consumption: Idle 16W/60VA, 1/8th Power 170W/230VA, Full Power 500W / 600VA.
- Mains Input: 220-230V, 115V – Factory set. Please observe panel markings and labels.
- Heat Output: Idle 47.8 BTU/hr, 1/8th Power 458.9 BTU/hr, Full Power 682.4 BTU/hr.
Contact us for pricing and availability.



