Technical Specifications:

Transducer system: 3-way vented: 200mm Harbeth RADIAL2™ bass/mid; 25mm ferro-cooled dome tweeter, 20mm dome SuperTweeter
Frequency response: 40Hz - 20kHz ±3dB free-space, grille on, smooth off-axis response
Impedance: 6 ohms, easy to drive
Sensitivity: 86dB/1W/1m
Amplifier suggestion: Works with a wide range of amplifiers, suggested from 25W/channel.
Power handling: 150W programme
Connectors: Four 4mm gold-plated binding posts for wires or plugs (biwireable)
Dimensions: 635 x 322 x 300mm (+12mm for grille and binding posts)
Finish: Walnut
Space needs: Overall response optimised for use away from walls.
Stands: Optimally to bring ears level with tweeters: typically 16-20 inches. (Tweeter: 475mm up from cabinet base)
Weight: 15.8kg each, unpacked
Packing: Single speaker per protective carton