ATC SCS120iW PRO

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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)
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