B&W HTM2 D2 Diamond (center speaker)

Single-owner, smoke free apartment, it functions as designed.  The diamond dome needs to be replaced (replacement costs 860$ more). 

The HTM2 Diamond is an ideal centre-channel dialogue speaker to use as part of
an 800 Series Diamond home theatre set up, providing all the clarity and richness
you need for larger viewing spaces, courtesy of two dedicated bass drivers, an
FST midrange driver and a diamond tweeter. 
Technical features:
Free-mounted diamond dome tweeter  Nautilus™ tube tweeter loading  Quad magnet tweeter motor  Kevlar® brand fibre cone FST™ midrange  Rohacell® cone bass  Dual magnet bass driver motor  Matrix™ cabinet  Flowport™

Description: 3-way vented-box system
Drive units:  1x ø25mm (1 in) diamond dome high-frequency  1x ø150mm (6 in) woven Kevlar® cone FST™ midrange  2x ø180mm (7 in) Rohacell® cone bass 
Frequency range: -6dB at 35Hz and 33kHz Frequency response: 41Hz - 28kHz ±3dB on reference axis
Dispersion, within 2dB of reference response  Horizontal: over 60º arc  Vertical: over 10º arc
Sensitivity: 90dB spl (2.83V, 1m)
Harmonic distorsion: 2nd and 3rd harmonics (90dB, 1m)  <1% 80Hz - 100kHz  <0.5% 100Hz - 100kHz

Nominal impedance: 8Ω (minimum 3.1Ω) Crossover frequency: 350Hz, 4kHz Recommended amplifier power: 50W - 300W into 8Ω on unclipped programme Max. recommended
cable impedance: 0.1Ω
Finish: piano black gloss   
Dimensions & weight:  Height: 329mm (13 in)   Width: 841mm (33.1 in)   Depth: 387mm (15.2 in)
Weight: 31kg (68 lb)

NOTE: the item is in Milan (ITALY)