The SCM25A Pro incorporates ATC's proprietary short coil seven-inch carbon-paper woofer, a three-inch soft dome midrange driver and a one-inch silk dome tweeter in a ported enclosure that measures 10.4 inches (264 mm) (H) x 16.9 inches (430 mm) (W) x 16 inches (408 mm) (D). The integrated tri-amplifier generates 150 W RMS for the woofer, 50 W RMS for the midrange and 25 W RMS for the tweeter. The passively cooled amp pack also features FET limiting. The crossovers are all 4th order, critically damped with phase compensation.

The SCM25A Pro produces a wide, stable soundfield with very low coloration and offers low frequency extension to 42 Hz (-6dB).

25mm neodymium soft dome tweeter.

ATC hand built 3/75mm soft dome mid driver.

ATC hand built 7/175mm carbon-paper cone bass driver.

On-board grounded source 235W class A/B 3-way amplifier.

Compact size with high output and low cut-off frequency.

19 rack mountable.

Drivers: HF 25mm soft dome, Mid 75mm soft dome, LF 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 > 10k
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)