Overview

The SCM25A Pro Mk2 is a compact 3-way high-performance active studio monitor loudspeaker, based around a 6.5”/164mm bass driver. The monitors combination of exceptional mid-range clarity, high output, extended bass response and modest size makes it ideal for nearfield monitoring in a wide range of critical applications.

The latest Mk2 version is updated with ATC’s latest SH25-76S ‘Dual Suspension’ tweeter, extending the high-frequency response along with a reduction in distortion. These improvements ensure faster decision making and outstanding translation outside the studio.

Key Features

• 3-way design featuring ATC SM75-150 Soft Dome mid-range driver.

• Wide dispersion vs frequency for excellent stereo imaging over a large listening area.

• ATC discrete MOSFET class A/B amp-pack delivers high dynamic range in combination with very

low distortion and an extended HF bandwidth.

• 4th order active crossovers with all-pass phase compensation ensure outstanding driver

integration.

• Input sensitivity and bass ‘boost’ user controls.

• Hand-built in England and covered by a 6-year warranty.

Acoustic Specifications

Drive Units

Bass: 1 x SB50-164SC 8Ω

Mid: 1 x SM75-150 16Ω

HF: 1 x SH25-76S 6Ω Compact

Low Frequency Cut-off: 47Hz (-6dB, anechoic). High Frequency Cut-off: 25kHz (-6dB).

Max SPL: 109dB continuous / 115dB peak (Per pair, IEC Weighted Pink Noise, 1m, anechoic).

Sensitivity: +4dBu ref 92dBC (Bass Boost 0dB, Input Sensitivity 1V, Pink noise).

Electronic Specifications

Balanced Input: 1 x Rear Panel Mounted Female XLR, pin 2 hot. Input Impedance: 20kΩ (differential).

Input CMRR: >82dB (10kHz).

Input Sensitivity: 2.2dBu / 1Vrms for full power

Input Sensitivity Control: Continuously Variable from 2.2dBu – 8.2dBu / 1Vrms - 2Vrms (-6dB)

Bass Boost Control: Continuously variable from 0dB to +3dB. Crossover Filters: 4th Order Linkwitz-Riley at 380Hz and 3.5kHz. Frequency Response: <2Hz to >200kHz (-3dB).

Amplifier type: Grounded Source MOSFET based Class A/B, convection cooled. Output Power: Bass 150W (8Ω), Mid 60W (8Ω), HF 32W (6Ω)

THD+N: <0.003%/-92dB (1kHz, 1dB below rated power, 90kHz BW)

Limiter: ATC Active FET Momentary Gain Reduction, limiter ‘active’ indicated via front panel LED.

Mains Input: 220-230V or 115V – Factory set. Please observe panel markings and labels!

Power Consumption: Idle 24W/35VA. 1/8th Power 117W/159VA. Full Power 255W/324VA.

Heat Output: Idle 82BTU/hr. 1/8th power 335 BTU/hr. Full Power 358BTU/hr.

Physical Specifications Net Weight: 25.1kg/55.2lbs

Product Dimensions: 271 x 430 x 411mm / 10 11/16th” x 16 15/16th” x 16 3/16th” (H x W x D) See drawing for full details.

Packed Weight: 28.15kg/61.9lbs

Pack Dimensions: 370mm x 560 x 510 / 14 ½ x 22 x 20 “ (H x W x D)

SCM25A Pro Mk2 Manual
SCM25A Pro Mk2 Datasheet

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