The ATC SCM45A Pro is a mid-size, high-performance active 3-way studio monitor designed for critical near-field listening applications in all control rooms. It is ideally suited for LCR surround monitoring in medium control rooms and surround channels in medium-to-large control rooms. Featuring ATC hand-built 6.5˝/164mm carbon-paper cone bass driver, ATC 25mm/1” Dual-Suspension ‘S-Spec’ Tweeter, and a discrete MOSFET class A/B tri-amp pack with 150W/60W/25W continuous power output, the SCM45A Pro ensures exceptional audio quality and reliability.

Key Features

  • ATC Hand-Built 6.5˝/164mm Carbon-Paper Cone Bass Driver
  • ATC 25mm/1” Dual-Suspension ‘S-Spec’ Tweeter
  • Discrete MOSFET Class A/B Tri-Amp Pack with 150W/60W/25W continuous power output
  • Ideally Suited For:
    • Critical near-field listening applications in all control rooms
    • LCR surround monitoring in medium control rooms
    • Surround channels in medium-to-large control rooms
  • 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)