ATC SCM45A Pro 3-way Compact Active Loudspeaker (Pair)

High Performance 3-way Compact Active Loudspeaker

The SCM45A Pro is mid-size very high performance active 3-way studio monitor.

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£9,126.00 £7,605.00
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SCM45A Pro is a high-performance three-way active loudspeaker; the first of ATC's three-way professional monitor to incorporate their new high-performance SH25-76S dual- suspension tweeter.

The SCM45A Pro is a completely new design, yet shares many features with its smaller sibling, the highly-successful SCM25A Pro three-way, compact active loudspeaker. As a mid-size, three-way design that can be used in near- or mid-field positions, the SCM45A Pro perfectly fills a gap in ATC’s high-performance, professional active studio monitoring loudspeaker range. It has high output and delivers extended low frequency for its size — and all without compromising the overall balance for which ATC is so well known.

Ideally suited to:

  • Critical near-field listening applications in all control rooms
  • LCR surround monitoring in medium control rooms
  • Surround channels in medium-to-large contol rooms


  • Proprietary ATC 25mm/1” Dual Suspension Super Tweeter
  • ATC hand built 3”/75mm Soft Dome mid-range driver.
  • 2 x ATC hand built 6.5”/164mm carbon-paper cone bass drivers.
  • On-board grounded source 235 watt Class A/B Tri-amplifier.
  • Compact size with high output and low cut-off frequency.
  • 6 year warranty.
More Information
  • Drivers: HF 1″/25mm Dual-Suspension ‘S-Spec’,  Mid 3″/75mm Soft Dome, LF 6.5″/164mm short-coil carbon paper cone
  • Amplitude Linearity (±2dB): 70Hz-17kHz
  • Cut-off Frequencies (-6dB, free-standing): 42Hz-25kHz
  • Dispersion: ±80° Coherent Horizontal, ±10° Coherent Vertical
  • Max. Continuous SPL (1 metre): 112dB
  • Audio Input: Rear panel mounted female xlr (pin 2 +)
  • Input Sensitivity: 1V rms (ref. full output)
  • Input Sensitivity Trim: 0dB to -6dB/1V – 2V (continuously variable via rear panel trimmer)
  • Input Impedance: Balanced > 10kΩ
  • Amplifier Output Power: Bass 150W rms, Mid 60W rms, High 25W rms
  • Crossover Frequencies: 380Hz & 3.5Khz
  • Crossover Filters: 4th order critically damped with phase compensations
  • Low Frequency Boost: 0dB to +3dB at 40Hz (continuously variable via rear panel trimmer)
  • Overload Protection: Active FET momentary gain reduction
  • Dimensions (HxWxD): 353 x 600 x 375mm (13.9˝ x 23.6˝ x 14.8˝).  Handles add an additional 39mm/1.5″ to depth.
  • Weight: 36kg / 79.2lbs (per cabinet)