B&W has just released their new PM1 loudspeaker, which sits very comfortably between their existing CM series and flagship 800 Diamond line.
The PM1 at present is pegged as purely a stereo line, with only one standmount model. The PM1 is said to not replace the previous 700 series but is closer in design objectives to the 805S model.
A huge amount of development work has gone into the new model, which was created in conjunction with design firm Native. The PM1 has a carbon-braced tweeter, with its aluminum dome stiffened with a ring of filament-wound, pitch-based carbon fibre. This raises the break-up frequency of the tweeter to 40KHz. The tweeter mechanism itself is mounted on top of the cabinet, as on the 800 Series Diamond, and uses a Nautilus tapering tube.
Sitting below the tweeter is a familiar Kevlar cone bass/midrange driver as used on the CM1. However, this one has a new anti-resonance plug: a mushroom-shaped device made from rigid EVA that fits tightly inside the voice coil former, helping to dampen resonances in the cone.
As for the cabinet, it uses B&W’s Matrix bracing system for improved rigidity. The front baffle and curved top panel is made from a thermoset plastic composite with an extra layer of mineral-filled resin on the back for additional mass and damping.
The crossover is kept as simple as possible, to maintain the purity of the signal, and uses Mundorf M-Cap Supreme capacitors. Oxygen-free copper speaker terminals are fitted on the back of the cabinet.
Pricing in the U.K. has been announced at: £1995 per pair, with the PM1 to be first available in a Mocha Gloss finish and then subsequently in also a Burgundy finish. The optional PM1 stands are optional at an extra cost of £400.
The PM1 should become available through dealers this July.
Type – Two-way vented-box system
Drive units – 25mm (1in) reinoforced aluminium dome tweeter; 13cm (5in) woven Kevlar cone mid/bass driver
Frequency range – -6dB at 42Hz and 60kHz
Frequency response – 48Hz-22kHz +-3DB on reference axis
Sensitivity – 84dB spl
Nominal impedance – 8ohms (minimum 5.1)
Crossover frequency – 4kHz
Recommended amp power – 30W-100W into 8ohms
Dimensions (HxWxD) – 33.1×19.1x25cm (29.3cm including grilles/terminals)
Stand dimensions (excluding spikes) – 62×26.8x30cm
Weight – 9.3Kg
More details are to be found at: http://www.bowers-wilkins.com