The new A 3CEN.4 approximately the size of two A 320 speakers laid end to end has been specifically designed to work with either the A 320 or A 340. The new flat design makes the A 3CEN.4 speakers an even more suitable match for the many new flatscreens on the market.system 2 Way Closed/Shielded Woofer (inch/mm) 2 x 3¾ / 95 Tweeter (inch/mm) 1 / 25 Sensitivity (dB - 28V / 1m) 88 Impedance (Ohm) 8 Weight (kg/lb) 17/37 Dimensions (HxWxD/mm/in) 113x300x116/44x118x46 Frequency Range 100-20000 powerLongTerm 70 powerShortTerm 100 terminalType Clips totalVolume 39/14