ATC SCM20ASL Pro (Pair)

2-way active 150mm (6″) bass driver / 25mm (1″) tweeter Transportable reference monitor H 448mm / W 270mm / D 310mm


The ATC SCM20ASL Pro is an active freestanding professional 2-way studio reference monitor, well suited for smaller studios or nearfield use.
Housed in a solid, aluminium case, the ATC SCM20ASL Pro is rugged and well-damped, able to stand up to all that you can put through it. The bass driver is the acclaimed 75mm ATC SL soft-dome, coupled with a soft-dome HF driver to give you precise, accurate stereo imaging with good dispersion. Driving the speakers on the SCM20ASL Pro is a bi-amp pack, comprising a 250W amp for the bass and mids and a 50W amp to power the top end – plenty of full range power to mix your hits on.
Having built the drivers and the amp together the ATC SCM20ASL Pro has excellent low distortion levels and high linear response. The LF settings can be adjusted through five steps on the back of the monitor. ATC are renowned for the surgical precision that their monitors impart to your sound – the SCM20ASL Pro is no exception.
If something doesn’t sound correct or stands out in the mix, then it will show up on the ATC SCM20ASL Pro.
Technical Specifications:

Drivers: HF 25mm, Mid/LF 75/150mm
Amplitude Linearity (±2dB): 80Hz-17kHz
Cut-off Frequencies (-6dB, free-standing): 60Hz, 22kHz
Horizontal Dispersion: ±80°, Coherent
Vertical Dispersion: ±10°, Coherent
Max. Continuous SPL (1 metre): 108dB
Crossover Frequency: 2.8kHz
Input Connectors: Male XLR
Input Sensitivity: 1V
Input Sensitivity Trim: ±6dB
Input Impedance: Balanced > 10kΩ
Amplifier Output: Bass 250W, High 50W
Filters: Even Order Critically Damped
Overload Protection: Active FET momentary gain reduction plus thermal tweeter protection
Front Panel Indicators: Power On indicator, Gain Reduction warning
LF EQ: +6dB @ 40Hz
Dimensions (HxWxD): 448 x 270 x 310mm (17.6˝ x 10.6˝ x 12.2˝)
Weight: 30kg / 66lbs

ATC SCM20ASL Pro Overview:

25mm soft dome HF unit
Full “SL” spec ATC bass driver with integral 75mm soft dome
9kg precision machined and optimised motor assembly
LF contour control
On board ATC built two way 250W Bi-Amp Pack
Heavily damped Aluminium cabinet
6 year warranty
Made in UK

Please note, we are not able to ship ATC speakers outside of the UK



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