PMC QB1 XBD-A – Full-Range Main Monitors

PMC QB1 XBD-A – Full-Range Main Monitors

The PMC QB1 XBD-A full-range main monitors are the pinnacle of professional audio monitoring, designed to meet the highest standards of critical listening environments. To create this extraordinary system, PMC engineers added a dedicated low-frequency cabinet (XBD) to the acclaimed QB1-A. This additional cabinet houses four piston drivers, each powered by its own 1000W independent Class D amplifier, delivering a staggering 8825W of ultra-clean power per channel.

This twin-stacked cabinet design ensures an unmatched sense of headroom, precision, and confidence for mixing and mastering, with 3dB more headroom than the QB1-A single cabinet model. The result is ultra-smooth in-room bass response, forensic detail across the frequency spectrum, and dynamics that redefine accuracy. Whether soffit-mounted or free-standing, the QB1 XBD-A provides the transparency, resolution, and wide, consistent imaging demanded by world-class studios.

Key features include a wired RJ45 desktop control, allowing easy access to user EQ settings and the ability to store up to four user setup presets. With ultra-low distortion and PMC’s signature ATL™ (Advanced Transmission Line) bass-loading technology, these monitors offer unparalleled performance for engineers and producers working on the most demanding projects.

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Key Specifications

• Frequency Response: 20Hz – 25kHz
• Sensitivity: Adjustable +4 to +20dBu
• Peak SPL: >132dB @ 1 metre
• Drive Units:
  • LF: 8 x PMC carbon fibre/Nomex 250mm/10” piston drivers
  • MF: 75mm soft dome driver (hand-built)
  • HF: 34mm soft dome tweeter with acoustic radiator
• Amplifier Power per Channel:
  • LF: 2 x 2400Wrms
  • LFX (XBD): 2 x 2400Wrms
  • MF: 1 x 550Wrms
  • HF: 1 x 275Wrms
• Crossover Frequencies: 380Hz & 3.8kHz
• Input Connectors: Balanced analogue input, AES3 digital input (96kHz 24-bit)
• Dimensions:
  • Height: 1640mm (64.6”)
  • Width: 1092mm (42.9”)
  • Depth: 523mm (20.6”)
• Weight: Master unit: 150kg (330lbs), XBD cabinet: 140kg (308lbs)

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Why Choose the PMC QB1 XBD-A?

1. Unrivaled Power & Precision: With 8825W per channel, the QB1 XBD-A offers limitless headroom and ultra-clean amplification.
2. Unmatched Bass Control: The twin-stacked cabinet design ensures seamless in-room bass performance with enhanced headroom and depth.
3. Customizable EQ & User Presets: The wired RJ45 desktop controller allows intuitive access to EQ settings and user presets for consistent monitoring in any environment.
4. Built for the Elite: Designed for the world’s top studios, these monitors deliver the resolution and detail required for critical mixing, mastering, and film scoring applications.