Introducing the QB1-A – PMC’s newest large-scale reference studio monitor.

Introducing the QB1-A,: PMC’s newest large-scale studio monitor design, and a bold statement of the state of the art, the result of extensive customer research and innovative driver performance analyses based on opto-acoustic laser interferometry. This is a Class-D active ATL™ speaker with analogue and digital inputs, featuring exceptional electro-mechanical engineering finessed by DSP control, and immense headroom (4825W per channel) wedded to pinpoint dynamics for unparalleled speed, depth, accuracy and power.

With a maximum SPL of 132dB at one metre and a quartet of 10-inch carbon fibre/Nomex® piston bass drivers, the QB1-A can certainly produce level — but not at the expense of accuracy or increased distortion. The cutting-edge on-board DSP provides driver unit optimisation, EQ and sophisticated crossover networks, while the wired RJ45 desktop control provides user-friendly access to user EQ settings via its backlit display and jog wheel, with the ability to store up to four user setup presets. Even the physical dimensions have been carefully considered: at 1092 x 820 x 520 millimetres (WHD), the QB1-A will retrofit into almost all existing studio soffits. Thanks to its ATL™ design, free-standing use has no impact on its effortlessly smooth bass response. Whether soffit-mounted or not, the QB1-A delivers the transparency, resolution, extended frequency response and wide, consistent imaging demanded by the international audio elite.

Frequency Response: 20Hz-25kHz Sensitivity: Adjustable +4 to +20dBu Effective ATL™ Length: 2.7m 8.9ft Impedance: Input Impedance 20k Bal Peak SPL: 132dB @1metre Drive Units:
LF 4 x PMC carbon fibre/Nomex 250mm/10” piston driver
MF PMC hand-built 75mm soft dome driver
HF PMC 34mm soft dome tweeter with acoustic radiator
Crossover Frequency:
380Hz & 3.8kHz
Input Connectors:
I/O - Balanced analogue input, digital AES3 input - Digital Input - AES3, 96kHz 24bit
Amplifier Power per Channel:
LF 2 x 2400Wrms
MF 1 x 550Wrms
HF 1 x 275Wrms
Dimensions:

H 820mm (32.2”)

W 1092mm (42.9”)

D 523mm (20.6”) (max depth)

Weight: 150kg (330lbs) Available Finishes: available finish available finish
available finish available finish
"I chose PMC’s QB1-A monitors for our main studio because they are currently the best studio monitors on the market, especially when they are installed in a room that has been purpose built to house them. Their performance is amazing, and they are very smooth, which tends to allow you to turn up the volume. To achieve these exceptional sonic results, we built the room for the speakers rather than trying to fit the speakers to the existing acoustics of the room. "
Tom Misner, Owner & CEO of Studios 301,
"Choosing a PMC QB1 system for Studio A was a no brainer because they are simply amazing, they sound clean and rounded, even at very high volumes. They reproduce the audio in such a pure way that you get to hear exactly what you are recording with no compromises. "
Mr Nick Gross, Los Angeles
"They are incredible monitors – really powerful and transparent. "
Mr Colm O'Rourke, UK
"While working at Capitol in Los Angeles, what struck me about the PMC QB1-As is that they sounded exactly the same when I cranked them up – still the same level of detail and depth. Sometimes I feel you lose that detail when you pump it up on other speakers. I often had the overwhelming feeling that the speakers were not there and I was listening to the ‘feeling’ I got from them. That’s a great sign, I think! "
Mr Troy Miller, USA

Downloads

Brochure(s)

Guide(s)

Drawing(s)

Customer Reviews

"I chose PMC’s QB1-A monitors for our main studio because they are currently the best studio monitors on the market, especially when they are installed in a room that has been purpose built to house them. Their performance is amazing, and they are very smooth, which tends to allow you to turn up the volume. To achieve these exceptional sonic results, we built the room for the speakers rather than trying to fit the speakers to the existing acoustics of the room. "
Tom Misner, Owner & CEO of Studios 301,
"Choosing a PMC QB1 system for Studio A was a no brainer because they are simply amazing, they sound clean and rounded, even at very high volumes. They reproduce the audio in such a pure way that you get to hear exactly what you are recording with no compromises. "
Mr Nick Gross, Los Angeles
"They are incredible monitors – really powerful and transparent. "
Mr Colm O'Rourke, UK
"While working at Capitol in Los Angeles, what struck me about the PMC QB1-As is that they sounded exactly the same when I cranked them up – still the same level of detail and depth. Sometimes I feel you lose that detail when you pump it up on other speakers. I often had the overwhelming feeling that the speakers were not there and I was listening to the ‘feeling’ I got from them. That’s a great sign, I think! "
Mr Troy Miller, USA

Technology

ATL Tecnology

DEEPER, CLEARER, CLEANER BASS & MORE

• 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

ATL Tecnology