Technical specs.  
Type two-way rear-ported stand mounted
Sensitivity 86.5 dBspl (2,83V/1m)
Nominal Impedance 8 ohm (min 5ohm)
Frequency resp. (-3dB) 50 Hz - 22kHz (100 kHz with ultrasonic generator)
Drivers 1 x 6-1/2" woofer Nomex diaphragm
  1 x 1-1/8" hand treated cloth soft dome tweeter
(optional)
1 x 3/4" hemispherical piezoelectric ceramic diaphragm ultrasonic generator
Internal wiring High purity dense Silver coated high purity OFC (VdH)
Terminali Copper alloy with velours chromium finish and full Makrolon insulation (WBT)
Materials 20mm solid MDF + real wood veneer, braced cabinet. Front bafflepanel: 12mm birch ply + 10mm plexiglass
Dimensions (HxWxD) 40 x 28 x 31 cm (15-1/3" x 11 x 12 inches)
Weight 12 Kg each
Finishing high quality satin-gloss lacquer finish in the best Italian tradition. Bespoke options available.