ATC SCM150A Pro: Precision 3-Way Active Studio Monitor (Pair)

Mastering-Grade Monitoring Power

The ATC SCM150A Pro is a flagship 3-way active studio monitor designed for uncompromising accuracy in professional mixing, mastering, and post-production environments. Engineered and handcrafted in the UK, it combines ATC’s proprietary transducer technology with a powerful tri-amplified system to deliver exceptional clarity, dynamic range, and low distortion across the entire frequency spectrum.

Super Linear (SL) Bass Driver Technology
The SCM150A Pro features a 15" SL bass driver that uses ATC’s proprietary Super Linear Magnetic Material (SLMM) to dramatically reduce third harmonic distortion. This innovation ensures clean, accurate low-frequency reproduction, even at high SPLs, making it ideal for bass-heavy content and large control rooms.

75mm Soft Dome Super Dome Midrange
ATC’s signature 3" soft dome midrange driver is engineered for ultra-low distortion and wide dispersion. Its large diaphragm and powerful motor system deliver exceptional transient response and midrange clarity, critical for vocal and instrument accuracy in professional monitoring.

25mm Dual Suspension ‘S-Spec’ Tweeter
The high-frequency driver features a dual suspension system that enhances dome stability and reduces distortion. This results in smooth, extended treble response with excellent stereo imaging and minimal listener fatigue during long sessions.

Precision Active Crossovers
The system uses critically damped, active electronic crossovers that maintain phase coherence and ensure seamless integration between drivers. This contributes to the monitor’s pinpoint imaging and natural tonal balance.

Tri-Amplified Grounded Source MOSFET Amplification
The SCM150A Pro includes a built-in 350W tri-amplifier pack: 200W for bass, 100W for midrange, and 50W for treble. This grounded-source MOSFET design delivers clean, stable power with excellent headroom and transient control, ensuring each driver performs at its best.

Integrated Protection and Room Tuning
Built-in FET-based gain reduction protects the drivers from overload, while thermal protection safeguards the tweeter. An LF contour control allows for low-frequency tuning to adapt to different room acoustics.

Main Features:

• Three-Way Active Design:
  • Bass: 15" (375mm) Super Linear (SL) driver
    
  • Midrange: 3" (75mm) ATC Super Dome
    
  • Highs: 1" (25mm) Dual Suspension ‘S-Spec’ soft dome tweeter
• Tri-Amplified Power:
  • 200W for bass
    
  • 100W for midrange
    
  • 50W for treble
• Total: 350W of grounded-source MOSFET amplification for clean, controlled output
  
• Frequency Response: 25Hz – 22kHz (-6dB), offering extended low-end and detailed highs
  
• Active Crossover Network: Precision-tuned for seamless driver integration and minimal phase distortion
  
• Overload Protection: Built-in FET-based gain reduction and thermal tweeter protection
  
• LF Contour Control: Adjustable low-frequency response for room tuning
  
• Clip Indication: Visual feedback for safe operation at high levels
  
• Handcrafted Build: Rugged, sealed cabinet design with in-house manufactured components for unmatched reliability
• Designed and built in the UK with in-house driver and amplifier manufacturing

Why Choose the SCM150A Pro?

The SCM150A Pro is trusted by elite engineers like George Massenburg and Doug Sax for its ability to reveal every nuance in a mix. Its extended low-frequency output, wide dispersion, and non-fatiguing sound make it ideal for medium to large control rooms where precision and power are essential.

Tech Specs:

• Powered: Yes
• Power Configuration: Tri-amped
• Quantity: Pair
• LF Driver Size: 15" LF, 3" MF
• LF Driver Type: ATC Custom-built "Super Linear" Driver
• HF Driver Size: 1"
• HF Driver Type: Dome
• LF Driver Power Amp: 200W (Low), 100W (Mid)
• HF Driver Power Amp: 50W
• Total Power: 350W
• Frequency Range: 25Hz-20kHz
• Crossover Frequency: 380Hz, 3.5kHz
• Maximum Peak SPL: 112 dB
• Input Types x XLR
• Enclosure Type: Ported (Front)
  
• Dimensions (HxWxD): 884 x 498 x 568 mm
• Weight: 75 kg (per cabinet)
• Warranty: ATC's 6-year limited warranty
• Discover ATC High-Resolution Monitoring for Professional Studios [SCM150A Pro]: https://atc.audio/professional/loudspeakers/scm150asl/