ATC Loudspeakers SCM45A Pro - Pair

High performance 3-way compact active loudspeaker
ATC Loudspeakers SCM45A Pro - Pair
ATC Loudspeakers SCM45A Pro - Pair ATC Loudspeakers SCM45A Pro - Pair ATC Loudspeakers SCM45A Pro - Pair ATC Loudspeakers SCM45A Pro - Pair video
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ATC Loudspeakers have been at the top of the list of pro quality studio monitors for decades. With their crystal clear high end, and tight, yet boomy low end, clients are always impressed, and mixes translates great from the studio to any listening environment on the first pass. The ATC Loudspeakers SCM45A Pro takes ATC’s old three-way speaker design to a whole new level.

SCM45a is perfectly symmetrical by design, making them very easy to position in your mixing room, and the ideal choice for a center monitor. Each speaker is equipped with two 6.5” low frequency drivers, by splitting the low end load to two speakers, SCM45a greatly reduces non-linear distortion from 20Hz - 380Hz. SCM45a is the first ATC speakers to include the new High-performance SH25-76S dual-suspension tweeter, adding little to no distortion at extreme monitoring levels, and always remaining crystal clear and airy on the top end.

A bass boost is built into the rear panel of the speaker, and can add up to 3 dB at around 40 Hz.

Each monitor is powered by a Tri-AmpPack, providing separate power amps for each frequency range. A continuous load of 150 Watts goes to the low frequencies, 60 Watts to the Mids, and 25 Watts sent to the tweeters.


  • Mid-size very high performance active 3-way studio monitor
  • 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
  • ATC hand built 6.5˝/164 mm carbon-paper cone bass driver
  • ATC 25 mm/1” Dual Suspension Super Tweeter
  • Discrete MOSFET class A/B bi-amp pack with 150/60/25 W continuous power output

Additional Information

Condition New
Length 14.8 in
Width 23.6 in
Height 13.9 in
Unit Weight 79.2 lb
Active or Passive Active
driver_sizes HF: 1″ dual-suspension ‘S-spec’ / MF: 3″ soft dome / LF: 6.5″ short-coil carbon paper cone
Number of Speakers Pair
Input Connectors Analog XLR
Amp Wattage Bass: 150 W RMS / Mid: 60 W RMS / High: 25 W RMS
Impedance Input: >10 kOhms balanced
Frequency Range 42 Hz - 25 kHz
Max. SPL 112 dB @ 1 m
Good value for the money

Amazing bass response! Nice dynamic range. These have become my goto for critical listening during mix down. Expensive, but I am hooked.

By Michael on May 2, 2016

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