ATC SCS120iW PRO
ATC Loudspeakers SCS120iW Pro
Studio subwoofer for installation.
The ATC SCS120iW Pro is a 15-inch/375-mm active installation subwoofer designed for in-wall mounting. It is the ideal partner for ATC mid-range and long-throw in-wall monitors in stereo, multichannel, and immersive applications.

Key features:
- Flush-mount design with reduced depth and a remotely mounted amplifier
- A hand-built S757-375SC 15”/375 mm long-throw woofer by ATC.
- R1-300 7U/19” amplifier for rack mounting.
- Connecting the amplifier to the subwoofer using an NL4 speaker cable and a 5-pin XLR LED* cable
- System stereo inputs and "LINK" system stereo output"
- Adjustment of level, low-pass filter frequency, and polarity
- Remote mute using a FootSwitch**.
- Handcrafted in England and backed by a 6-year warranty
*Cables sold separately; price varies by length
**FootSwitch sold separately, snap-on type, 1/4”/6.35 mm connector

Acoustic Specifications:
- LF: 1 x SB50-164SC 8Ω
- Mid: 1 x SM75-150 16Ω
- HF: 1 x SH25-76S 6Ω Compact
- Low frequency cutoff: 47Hz (-6dB).
- High frequency cutoff: 25kHz (-6dB).
- Max SPL: 109dB continuous/ 115dB peak (Measured for a pair of monitors, IEC Weighted Pink Noise, 1m).
- Sensitivity: +4dBu ref 92dBC (Low band boost 0dB, Input sensitivity 1V, Pink noise).
Electronic specification:
- Symmetrical input: 1 x Rear panel mounted female XLR socket, pin 2 hot.
- Input impedance: 20kΩ.
- Input CMRR: >82dB (10kHz).
- Input sensitivity control: stepless variable from 2.2dBu - 8.2dBu / 1Vrms - 2Vrms (-6dB)
- Lower band boost control: infinitely variable from 0dB to +3dB.
- Crossover: Linkwitz-Riley 4th order, 380Hz and 3.5kHz division frequencies.
- Frequency response: 200kHz (-3dB).
- Amplifier: class A/B MOSFET
- Amplifier power: LF 150W (8Ω), MF 60W (8Ω), HF 32W (6Ω)
- THD+N: <0.003%/-92dB (1kHz, 1dB below rated power, 90kHz BW)
- Limiter: ATC Active FET Momentary Gain Reduction, limiter operation indicated by LED on front panel
- Power supply: 220-230V or 115V
- Power consumption: inactive 24W/35VA. 1/8 power 117W/159VA. full power 255W/324VA.
- Heat generated: inactive 82BTU/hr. 1/8 power 335 BTU/hr. full power 358BTU/hr.
- Net weight: 25.1kg
- Dimensions: 271 x 430 x 411mm (H x W x D)
- Weight with packaging: 28.15kg
- Package dimensions: 370 x 560 x 510mm (H x W x D)




