Description
The ATC SCM45A Pro is an active 3-way with a 1″ dual-suspension Super Tweeter, a 3″ soft-dome midrange driver, and two 6.5″ short-coil carbon-paper cone bass drivers. The system is amplified by a custom, discrete MOSFET Class A/B tri-amp pack.
Ideally suited to critical near-field listening applications in all control rooms, LCR surround monitoring in medium control rooms and surround channels in medium-to-large contol rooms
The design takes notes from the highly-regarded ATC midrange dome by utilising a dual-suspension design, negating the requirement for Ferro-fluid, and avoiding the detrimental effects of this drying out over time, a feature considered to be of utmost importance for longterm consistency
ATC SCM45A Pro Specifications:
- Drivers: HF 25mm soft dome, Mid 75mm soft dome, LF 6.5″/164mm short-coil carbon paper cone
- Amplitude Linearity (±2dB): 74Hz-17kHz
- Cut-off Frequencies (-6dB, free-standing): 47Hz-22kHz
- Dispersion: ±80° Coherent Horizontal, ±10° Coherent Vertical
- Max. Continuous SPL (1 metre): 109dB
- 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): 264 x 430 x 369mm (10.4˝ x 16.9˝ x 14.5˝). Handles add an 39mm/1.5″ to depth.
- Weight: 30kg / 66lbs (per cabinet)
- Manual here
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