The QB1-XBD-A is a statement monitor that has no equal in terms of sheer power and resolution.

To create the awesome QB1-XBD-A, we added a dedicated low-frequency cabinet to work in unison with the full-range main monitor. This additional 'XBD' cabinet contains four identical piston drivers, each driven by four of PMC's 1000w independent, class D power amplifiers, giving a staggering 8825W of ultra-clean power per channel.

The sense of limitless headroom and complete confidence gained when working on these is unparalleled from this twin-stacked cabinet design, and this configuration ensures the smoothest possible in-room bass response with 3dB more headroom than the QB1-A single cabinet version. Alongside its incredible power ratio and damping per channel, the QB1-XBD-A offers ultra-low distortion, a forensic sense of detail and incomparable dynamics and transience throughout the entire bandwidth.

In keeping with the QB1-A, the QB1-XBD-A features wired RJ45 desktop control, which provides user-friendly access to user EQ settings via its backlit display and jog wheel, and the ability to store up to four user setup presets.

Whether soffit-mounted or not, the QB models deliver the transparency, resolution, extended frequency response and wide, consistent imaging demanded by the international audio elite.

Customer Reviews

"PMC understood what we wanted to achieve and were able to create a bespoke playback system that delivers the ultimate in sound quality, whether it’s for an intimate live music performance, a sold-out club night or mixing audio in a world class environment. The results have been exceptional with sound quality unlike anything in the country. "
Mr Heff Moraes, UK
"I didn’t want just loud; I wanted clarity. Now with these monitors, I can mix or track and be sure that what I´m hearing is correct. "
Mr Lars Hallbäck , Sweden


ATL Tecnology


  • Greater detail & more natural
  • A full, rich sound at any volume level
  • Deeper bass from a smaller cabinet

The source of PMC’s legendary natural, realistic sound is the Advanced Transmission Line (ATL) bass-loading technology, professionally proven all around the world.

ATL uses energy generated by the bass unit in a much more intelligent, efficient way than speaker designs based on ported or sealed boxes.

Find out more here

ATL Tecnology
LaminairTM Tecnology

Our Laminair™ aerodynamic vent technology takes audio performance to the next level.... find out more

LaminairTM Tecnology
Get access to the most powerful cinema design tool available. The Cedia Designer (TCD) is a cloud-based design tool. It allows home cinema professionals to design Any dedicated cinema or media room in minutes using any one of PMC’s products.