Bowers and Wilkins CCM-817 In-Ceiling 2-Way loudspeaker (pair)

Technical features:

• Audiophile quality speaker system
  30° angled drive units
  Woven Kevlar® cone mid/bass 

Description:                           2-way in-ceiling speaker system
Drive units:

• 1x ø25mm (1 in) Nautilus™ tube loaded aluminium dome tweeter
  1x ø180mm (7 in) Kevlar® cone bass/midrange
  both units angled at 30° 
  
  

Frequency range:                 -6dB at 40Hz and 50kHz
Frequency response:            45Hz-22kHz ±3dB on reference axis
Sensitivity:                             89dB spl (2.83V, 1m)
Nominal Impedance:             8Ω (minimum 3.5Ω)
Crossover:                             3.5kHz
Recommended Amp Power: 20W - 150W continuous into 8Ω on unclipped programme 
Frame size:                           Diameter: 271mm (10.7 in) x 242mm (8.5 In)
Cutout size:                           Diameter: 234mm (9.2 in)
Minimum Depth req:              102mm (4 in) from ceiling surface
Protrusion:                             63mm (2.5 In)
Net weight:                            2.6 kg (5.7lb)
Finish:                                    Semi-matte white suitable for customizing or pre-painting

Installed in a smoke free home, and complete with all original packaging, suitable to ship. No marks or blemishes. I do have, included for the cost of shipping, two MDF speaker boxes I made for them which fit between standard spaced floor joists. Install them in new construction or in a drop-ceiling as I did.