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SCM25A Pro Mk2 Professional Audio
SCM25A Pro Mk2 Professional Audio
SCM25A Pro Mk2 Professional Audio
SCM25A Pro Mk2 Professional Audio
SCM25A Pro Mk2 Professional Audio
SCM25A Pro Mk2 Professional Audio
SCM25A Pro Mk2 Professional Audio
SCM25A Pro Mk2 Professional Audio

ATC Loudspeaker Technology
SCM25A Pro Mk2 Active Studio Monitor

The SCM25A Pro Mk2 is a compact 3-way high-performance active studio monitor loudspeaker, based around a 6.5”/164mm bass driver loaded in a 25-litre vented cabinet. The monitor’s combination of exceptional mid-range clarity, high-output, extended bass response and modest size make it ideal for nearfield monitoring across a wide range of critical applications.
The 3-way monitor features proprietary drive units designed and manufactured by ATC. Low frequencies below 380Hz are handled by a 6.5”/164mm bass driver, mid-range frequencies between 380Hz & 3.5kHz by the ATC 3”/75mm soft dome mid-driver. 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 Mk1-to-Mk2 model. The enclosure is a ported/vented type, tuned to 32Hz and featuring a 3”/75mm diameter port with flared entry & exit to minimise 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 optimise 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-colour LED.


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 ‘lift’ 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 Boot 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)

Retail price is for 1 pair.


Informative price:
€ 9.758,00