Drivers: HF 1.25″/34mm, Mid 3″/75mm, LF 2 x 15″/375mm
Amplitude Linearity (±2dB): 50Hz-12kHz
Cut-off Frequencies (-6dB): 25Hz, 20kHz (free standing) 20Hz, 20kHz (soffit mounted)
Horizontal Dispersion: ±80°, Coherent
Vertical Dispersion: ±10°, Coherent
Max. Continuous SPL (1 metre): 121dB
Crossover Frequencies: 380Hz, 3.5kHz
Input Connectors: Male XLR
Input Sensitivity: 2V
Input Impedance: Balanced > 10kΩ
Amplifier Output: Bass 275+275W, Mid 200W, High 100W
Filters: Even Order Critically Damped
Overload Protection: Active FET momentary gain reduction plus thermal tweeter protection
Front Panel Indicators: N/A
Dimensions (HxWxD): 884 x 925 x 460mm (34.8˝ x 36.4˝ x 18.7˝)
Weight: 140kg / 308lbs
ATC SCM300ASL PRO
- Large format main monitor.
- 34mm soft dome tweeter.
- Twin full spec “SL” 15˝/375mm bass drivers.
- ATC 75mm “Super Dome” mid driver.
- P4 (see below) rack-mount grounded source 850W class A/B amplifier.
- 6 year warranty.

- 4 channel 3-way mono-block design.
- ATC class A/B “Grounded Source Topology”.
- 850W total output.
- 4th order active crossovers with phase correction.
- Fast FET soft limiting driver protection.
- Triple fan cooling.
- 6 year warranty.
- Only available as part of an ATC active loudspeaker system.
Output Power: HF 100W into 6Ω, Mid 200W into 16Ω, LF 275W x 2 into 8Ω
Input Sensitivity: 2V
Input Inpedance: 10kΩ
Frequency Response: 5Hz – 20 kHz ±0.1dB
Signal to Noise Ratio: Better than 105dB
Crosstalk: Better than 90dB
Power Requirements: 100, 115, 230 Volts (region dependant 50/60Hz factory set)
Dimensions: 19˝ Rack Mounting 5U high (222mm / 8.7˝), Overall Depth 538mm (21.2″), Front Panel and Handles 71mm (2.8˝), Rear Handles 40mm (1.6˝),
Amplifier Body 427mm (16.8˝ )
Weight: 40kg approx.







