The OB1 is the first 3-way design in the PMC line-up.

The OB1 is the first 3-way design in the PMC line-up. It represents a step-up in performance when compared to any of the 2-way models, offering additional resolution in all areas.

The OB1 employs an identical tweeter to the FB1+, but attains an even higher level of performance and signal resolution. The addition of a dedicated 75mm soft dome mid-range device, housed in an isolated enclosure, projects the critical vocal ranges far into the room, enveloping you in the performance. Bass is better defined, with the more piston-like woofer, which enhances the attack of bass notes, making them cleaner and crisper.

Moving to a 3-way device involves a far more sophisticated crossover network. This crossover has steep roll-off curves (24dB/octave) which guarantees higher power handling and far more natural in-room response.

To ensure the optimum functioning of all these highly specified components and eliminate cabinet colouration, the OB1 cabinet wall thickness has been increased to a combination of 18mm & 25mm.
The OB1 is at home in a multitude of spaces, from small to larger open plan sitting rooms. The OB1 will not inhibit extreme upgrades to source equipment, they simply act as a conduit allowing the quality to flow through.

Sensitivity: 87dB 1w 1m Recommended Amp Power: 0-300W Effective ATL™ Length: 3.3m 11ft Impedance: 6 ohms nominal Drive Units:
LF Doped, 170mm with cast alloy chassis
MF Doped, 75mm fabric soft dome
HF 27mm, silk soft dome, Ferrofluid cooled
Input Connectors:
3 Pairs 4mm Binding posts (Suitable for Tri-Wire or Tri-Amp)
Dimensions:

H 1025mm 40.4″ W 200mm 7.9″ D 325mm 12.8″

Weight: 21.5kg 47.3lb Available Finishes: available finish available finish available finish
available finish available finish available finish

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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.

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ATL Tecnology