ATC SCM25A Pro MkII

The ATC SCM25A Pro MkII is a compact 3-way active ported studio reference monitor with a 6.5"/164mm bass driver loaded in a 25-litre vented cabinet and an integrated 235W amplifier, well suited for smaller to medium studios.

The 3-way design features the ATC SM75-150 Soft Dome mid-range driver  (3"/75mm) which handles mid frequencies between 380Hz and 3.5kHz.

The ATC SCM25A Pro MkII has all ATC-designed and produced proprietary drive units. A 6.5"/164mm bass speaker handles low frequencies below 380Hz.

Updated Tweeter Design

In addition, the new ATC SCM25A Pro MKII has ATC's SH25-76S Dual-Suspension 1"/25mm soft dome tweeter which handles high frequencies exceeding 3.5kHz. This HF driver upgrade is the crucial difference between the Mk1 and Mk2 models. The update with ATC’s latest SH25-76S ‘Dual Suspension’ tweeter, extends the high-frequency response also providing a reduction in distortion.

The enclosure is a ported/vented design tuned to 32Hz and has a 3"/75mm diameter port with flared entrance and exit to reduce port air noise.

Class A/B Amp

A 3-way class A/B amp pack installed in the back of the cabinet actively drives the SCM25A Pro Mk2. Each driving unit is equipped with its power amplifier. The audio input is a 3-pin female XLR on the back panel, and the power is an IEC mains power inlet. The user may adjust input sensitivity and bass' boost'. Crossovers are 4th order Linkwitz-Riley with all-pass filters to improve tone accuracy, imaging, and on and off-axis frequency response. To reduce amplifier' hard-clipping,' FET peak limiters are added. A front-panel-mounted bi-colour LED indicates that the power and limiter are functioning.

Hand built in the UK with a 6-year warranty

ATC SCM25A Pro MK2 Technical Specifications:

• Balanced Input: 1 x Rear Panel Mounted Female XLR, pin 2 hot.
• Input Impedance: 20kŒ© (differential).
• Input CMRR: >82dB (10kHz).
• Input Sensitivity: 2.2dBu / 1Vrms for full power
• Input Sensitivity Control: Continuously Variable from 2.2dBu ‚Äì 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 (8Œ©), Mid 60W (8Œ©), HF 32W (6Œ©)
• 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 ‚Äì 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.

Please note we cannot ship ATC speakers outside of the UK.