ATC SCM25A Pro MK2 Active Studio Monitors (Pair)



12-Month Special Financing**

SKU: ATCSCM25APROMK2 Categories: , Tags , , Brand:


The new SCM25A Pro Mk2 has been upgraded with ATC’s hand-made proprietary SH25-76S Dual Suspension Tweeter, extending the high-frequency response with a reduction in distortion. 

Like the original SCM25A, the new upgraded Mk2 is a compact 3-way high-performance active studio monitor loudspeaker, based around the hand-made proprietary ATC 3”/75mm soft mid-dome driver and 6.5”/164mm bass driver loaded in a 25-liter vented cabinet. The monitor’s combination of exceptional mid-range clarity, high output, extended bass response, and modest size makes it ideal for nearfield monitoring across a wide range of critical applications. 

The 3-way monitor features drive units designed and manufactured by ATC, and are only available in ATC Loudspeakers. 

  • High frequencies above 3.5kHz are handled by ATC’s SH25-76S Dual-Suspension 1”/25mm soft dome tweeter. This HF driver update is the primary improvement from the Original SCM25A-to-SCM25A Mk2 model. 
  • Mid-range frequencies between 380Hz & 3.5kHz by the ATC 3”/75mm soft dome mid-driver. 
  • Low frequencies below 380Hz are handled by a 6.5”/164mm bass driver. 
  • The enclosure is a ported/vented type, tuned to 32Hz and featuring a 3”/75mm diameter port with flared entry & exit to minimize port air noise. 

The SCM25A Pro Mk2 is actively driven by a 3-way class A/B amp pack mounted in the rear of the cabinet. Each drive unit has its own dedicated power amplifier. Audio input is via a rear panel mounted 3-pin female XLR and power via an IEC mains power inlet. There are user controls for input sensitivity and bass ‘boost’. Crossovers are 4th order Linkwitz-Riley and all-pass filters are included to optimize the phase response through the crossover regions, improving the tonal accuracy, imaging, on and off-axis frequency response. FET peak limiters are included to reduce amplifier ‘hard-clipping’. Power ‘on’ and limiter ‘active’ is indicated by a front panel mounted bi-color LED. 

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)
  • Packed Weight: 28.15kg/61.9lbs
  • Pack Dimensions: 370mm x 560 x 510 / 14 1⁄2 x 22 x 20 “ (H x W x D) 

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On qualifying purchases made with your Westlake Pro credit card. Interest will be charged to your account from the purchase date if the promotional purchase is not paid in full within 12 Months. Minimum monthly payments required.

**No interest will be charged on the promo purchase if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo purchase from the purchase date. The required minimum monthly payments may or may not pay off the promo purchase by the end of the promo period. Regular account terms apply to non-promo purchases and, after the promo period ends, to the remaining promo balance. For new accounts: Purchase APR is 29.99%. Minimum interest charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

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