ATC SCM12 Pro

A Compact ATC Reference for Nearfield, Positioned at the Heart of Modern Control Rooms

The ATC SCM12 Pro continue the tradition of studio monitors designed as measuring instruments: a passive two-way speaker oriented towards "truth" rather than flattering sound. Within the range, they stand as a compact nearfield monitoring solution, suitable for setups where extremely clear listening is desired while maintaining the freedom to choose amplification that best fits the studio and working habits.

Who the ATC SCM12 Pro Are For and Where They Excel

These monitors are aimed at sound engineers, producers, mixers, and composers seeking reliable listening for long working sessions without unpleasant surprises, both in professional studios and demanding production environments. Their size and controlled directivity are particularly suited for nearfield listening (production desks, compact control rooms) and surround systems where channel coherence is essential, especially in LCR configurations.

As passive speakers, amplifier choice is an integral part of the final result. ATC recommends amplification between 75 and 300 watts, allowing dynamic headroom to be tailored to room size, listening level, and program type (music, post-production, voice, etc.).

ATC Drivers, Crossover, and Room Behavior: What Makes the Difference

A 150 mm CLD Woofer for Clean and Usable Low-Mids

The 150 mm CLD (Constrained Layer Damping) mid-bass driver is designed to limit unwanted resonances and preserve clarity in the most critical mix area: low-mids, snare attacks, vocal body, guitars, and fundamentals. The result: a clearer sense of placement and better ability to judge harmonic density without over-EQing.

A 25 mm Double Suspension Tweeter for Precision Without Harshness

The ATC 25 mm soft dome tweeter with double suspension aims for stable and detailed high-frequency reproduction. This design promotes precise listening on transients (cymbals, consonants, reverb, vocal air) while maintaining a controlled character, useful for calibrating brightness, sibilance, and effect depth.

Coherent Dispersion: Placement, Stereo Image, and Faster Decisions

The SCM12 Pro feature coherent dispersion of approximately 80 degrees horizontally and approximately 10 degrees vertically, a key point for stabilizing the image and limiting variations when slightly moving in the listening position. In practice, this helps achieve an exploitable "sweet spot" and better evaluate panning, depth, and balances, even in moderately sized rooms.

Technical specifications

Battery	No	EQ	No
Number of channels	2 channels	Inputs	XLR
Bluetooth	No	Color	Black
Connection	XLR	Power output	300 W
Speaker diameter	1", 6"	Quantity	2
Number of speakers	2

Recommended applications	critical nearfield listening, LCR surround monitoring in small to medium control rooms	Maximum continuous sound pressure level	108 dB (per pair at 1 m)
Warranty	6 years	Recommended power amplifier	75 to 300 Watts
HF	ATC 25 mm (1 inch) soft dome double suspension tweeter (SH25-76 6 Ohm)	Nominal impedance	8 Ohm
LF	ATC 150 mm (6 inch) Constrained Layer Damping CLD woofer (SB50-150CLD 8 Ohm)	Connectors	binding posts
Amplitude linearity	80 Hz to 16 kHz (+/-2 dB)	Compatible	4 mm plugs, bi-wiring
Cutoff frequencies	56 Hz to 22 kHz (-6 dB independent)	Cabinet dimensions (H x W x D)	400 x 238 x 235 mm
Crossover frequency	2.2 kHz	Weight	11 kg (per speaker)
Dispersion	approximately 80 degrees coherent horizontal, approximately 10 degrees coherent vertical