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HomepageMonitoringActive Monitors › ATC Loudspeakers SCM45A Pro (pair)
ATC Loudspeakers SCM45A Pro (pair)

ATC Loudspeakers SCM45A's unrivaled precision, articulate and controlled sound deliver the performance needed from studio monitors to create complex and well balanced mixes.

The SMC45A Pro, ATC's mid-sized three-way active loudspeaker in the SCM range, can be placed in both near- or mid-field positions. It shares many features with the SMC25A Pro, and completes ATC's professional active monitoring loudspeaker range. Producing an excelent linear response across the midrange, the 45A's design includes a second woofer for an extended bass response and increased SPL (Sound Pressure Level) capability, The proprietary dual-suspension tweeter that creates the high top-end resolution is the result of six years of research and development by ATC Managing Director Billy Woodman and R&D Engineer Richard Newman.
  • Mid-size very high performance active 3-way studio monitor
  • 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
  • ATC hand built 6.5/164mm carbon-paper cone bass driver.
  • ATC 25mm/1" Dual Suspension Super Tweeter
  • Discrete MOSFET class A/B bi-amp pack with 150W/60W/25W continuous power output
  • Specifications
  • Drivers: HF 1/25mm soft dome, 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 > 10k
  • 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)
  • Reviews
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    Additional information
    For more information about the SCM45A Pro (pair), please visit the website of ATC Loudspeakers
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