This is a great opportunity to buy these pair of pro tannoy speakers i bought these about 3 months ago for £480 and due to a new job abroad i have to reluctantly sell these little beauties. they r near perfect condition and sound really good on a half decent amp. will consider any serious offers frequency response (1) 47 hz 20 khz recommended amplifier power 60 to 180 w rms into 8 ohms power handling average (2) 90 w rms programme 180 w rms nominal impedance 8 ohms sensitivity (3) 92 dbspl 1 w 1 m distortion < 0.8% dispersion 6db) 90 degrees conical crossover frequency 1800 hz cabinet dimensions (hxwxd) 275 mm x 450 mm x 267 mm