Bespoke series loudspeakers feature specific sound radiation pattern to minimize lateral radiation to the side-walls, floor and ceiling and significantly reduce destructive effects of room resonances.This approach saves a lot of room acoustic treatment, and the loudspeaker’s positioning becomes less critical.Therefore Reflector Bespoke loudspeakers are a perfect choice for rooms of various acoustic properties and sizes! Bespoke P18 technical specifications: Acoustic Design 2-way baffle-free horn loudspeaker Drive Units 3” true piston motion titanium nitride coated titanium diaphragm compression driver, four 18” extremely powerful paper cone woofers Frequency Range 25 Hz-20 kHz Phase Response(acoustic) +/-30 degrees (100 Hz – 20 kHz) Max continuous Sound Pressure Level 105 dB @ 25 Hz, 130 dB (60 Hz-20 kHz) Sensitivity LF 100 dB 1W/1m Sensitivity HF 112 dB 1 W/1m Amplification Complimentary amplifiers are included Dimensions (cm), weight 88(W) x 135(H) x 37(D), 45 kg (each) Loudspeaker placement Minimum distance from the loudspeaker to the listening spot – 2.5m. Minimum distance from the loudspeaker to the wall behind – 0.5m P.S. You can choose your favourite colour for horn driver. Originally it comes in black. More info: Bespoke P18