The ATC Loudspeakers SCM20SL are passive nearfield monitors. This offering represents ATC's first venture into the U.S. pro market with a passive monitor. Maintaining the strict performance criteria of ATC reference monitors, the SCM20SL offers project and home studios the dynamic range and pristine imaging ATC is known for worldwide.

Designed to fit within the company's highly-regarded line of speakers, the ATC "Passive 20" features the same woofer and tweeter as the active (SCM20ASL) version of the speaker. The SCM20SL passives are housed in a conventional "pro-black" box for easy placement on any meter bridge.

ATC recommends amplifiers with at least 200W per channel of power. The Passive 20 loudspeaker enables ATC speaker fans to own a high performance monitor at half the price of the actives.

The SCM20SL Passive low-frequency section is a hybrid design incorporating a 150mm bass cone with a grafted 75mm soft dome for mid-range assist. The woofer magnet assembly utilizes ATC's unique "SL" technology to greatly reduce third harmonic distortion and reveal mistakes and details. All ATC drivers are manufactured in-house to exacting tolerances and are legendary for their many design innovations.

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

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 > 10k

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