ATC SCM25A Pro Mk2 6.5" Powered Studio Monitor Pair
Description
Understanding how every element of a mix interacts is what turns accurate monitoring into confident decision-making. The ATC SCM25A Pro Mk2 studio monitor pair is a compact powered 3-way monitoring system engineered to deliver the exceptional midrange transparency, dynamic range and translation accuracy that have made ATC a fixture in world-class recording, mixing and mastering facilities. Built around ATC’s legendary SM75-150 soft-dome midrange driver, proprietary 6.5" bass driver and updated SH25-76S dual-suspension tweeter, the SCM25A Pro Mk2 combines wide dispersion, extended frequency response and remarkably low distortion in a format compact enough for nearfield applications. Its ability to reveal critical mix information while maintaining musicality makes it an ideal solution for professional stereo, surround and immersive audio workflows.
Three-Way Design Built Around ATC’s Legendary Midrange
The defining feature of the SCM25A Pro Mk2 is its dedicated ATC SM75-150 soft-dome midrange driver, a design widely regarded as one of the most accurate midrange transducers available in professional audio. By assigning vocals, instruments and critical mix elements to a dedicated driver, the monitor delivers exceptional clarity and tonal separation through the frequencies where the most important production decisions are made. The proprietary bass driver provides controlled low-frequency extension down to 47Hz, while the updated SH25-76S dual-suspension tweeter extends high-frequency performance with reduced distortion and improved detail retrieval. Together, the three drivers create a remarkably coherent and revealing monitoring experience.
Active Amplification and Precision Driver Integration
The SCM25A Pro Mk2 features ATC’s discrete MOSFET Class A/B tri-amplified design, delivering dedicated power to each driver for maximum control and dynamic accuracy. With 150W powering the bass driver, 60W dedicated to the midrange and 32W driving the tweeter, the system maintains composure and detail even during demanding playback levels. Fourth-order Linkwitz-Riley active crossovers combined with all-pass phase compensation ensure seamless integration between drivers, preserving imaging and frequency balance throughout the listening area. The result is a monitoring system capable of exposing subtle mix details while maintaining outstanding transient response and musical realism.
Reference Monitoring for Modern Professional Studios
Designed and hand-built in England, the SCM25A Pro Mk2 is equally at home in music production rooms, post-production facilities and immersive audio environments where accurate translation is essential. Wide horizontal dispersion creates a stable stereo image across a broad listening area, while user-adjustable input sensitivity and bass controls help optimize performance for different rooms and monitoring positions. ATC’s active FET protection circuitry safeguards the system without compromising sonic integrity, and convection-cooled amplification ensures silent operation in critical listening spaces. Backed by a six-year warranty and ATC’s uncompromising engineering philosophy, the SCM25A Pro Mk2 studio monitor pair delivers the precision, consistency and confidence required for professional audio production.

Features
- Three-way powered studio monitor pair engineered for critical mix accuracy
- Dedicated soft-dome midrange driver reveals critical detail and tonal balance
- Dual-suspension tweeter extends high frequencies with reduced distortion
- Proprietary bass driver delivers controlled low-frequency response and accuracy
- Class A/B tri-amplification provides dynamic headroom and precise driver control
- Fourth-order active crossovers ensure seamless driver integration and imaging
- Variable input sensitivity and bass controls optimize performance for different rooms
- Hand-built design supports consistent performance and reliable mix translation
- Wide dispersion promotes stable stereo imaging across listening positions
- Ideal for stereo, surround and immersive audio monitoring applications
Specs
- Product type: Powered 3-way studio monitor pair
- Model: SCM25A Pro Mk2
- LF driver: 1 × ATC SB50-164SC 6.5" (164 mm) bass driver
- MF driver: 1 × ATC SM75-150 3" (75 mm) soft dome midrange
- HF driver: 1 × ATC SH25-76S 1" (25 mm) dual suspension tweeter
- Low-frequency cutoff: 47Hz (-6dB)
- High-frequency cutoff: 25kHz (-6dB)
- Maximum SPL: 109dB continuous, 115dB peak @ 1m
- Sensitivity: 85dBC ref. -15dBu
- Amplifier type: Discrete MOSFET Class A/B
- Cooling: Convection cooled
- LF amplifier power: 150W
- MF amplifier power: 60W
- HF amplifier power: 32W
- Audio input: 1 × balanced XLR (female)
- Input impedance: 20 kohm differential
- Input sensitivity: 2.2dBu / 1Vrms for full power
- CMRR: 82dB @ 10kHz
- Input sensitivity: Continuously variable from 2.2dBu to 8.2dBu (1–2Vrms)
- Bass boost: 0dB to +3dB continuously variable
- Crossover frequencies: 380Hz and 3.5kHz
- Crossover type: 4th-order Linkwitz-Riley with all-pass phase compensation
- System frequency response: <2Hz to >200kHz (-3dB)
- Limiter: Active FET momentary gain reduction
- Limiter indicator: Front-panel LED
- Mains voltage: 115V or 220–230V (factory set)
- Idle: 24W / 35VA
- 1/8 power: 117W / 159VA
- Full power: 255W / 324VA
- Idle: 82 BTU/hr
- 1/8 power: 335 BTU/hr
- Full power: 358 BTU/hr
- Critical nearfield monitoring
- Stereo monitoring
- Surround monitoring
- Immersive audio systems including Dolby Atmos
- Cabinet type: Active 3-way enclosure
- Manufactured: Hand-built in England
- Dimensions: 10.7" × 16.9" × 16.2"
- Additional rear clearance required: 1" (25 mm)
- Weight: 55.9 lb. (25.4 kg) per speaker
- Warranty: 6 years
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