The Scan-speak 23W/4557T is a high end subwoofer featuring a very rigid aluminum cone, low loss rubber surround and cast frame. The 23W/4557T usese the SD-1 motor system. There are gold plated binding posts and the woofer magnet is covered by a decorative rubber cap.
Specifications
power handling (continuous/programme) = 225 W
frequency range = 20-800 Hz
resonance frequency fs = 21 Hz
impedance R = 4 Ohm
sound pressure level SPL = 82 dB (2,83V; 1m)
DC resistance Re = 3,45 Ohm
force factor BL = 9,3 N/A
voice coil inductance L = 0,45 mH
effective piston radiating area Sd = 232 cm2
effective mechanical mass incl. air load mms = 101 g
equivalent volume of compliance Vas = 45 l
total Q factor Qts = 0,47 (Qms=4,8, Qes=0,52)
voice coil diameter = 50 mm
maximum peak linear excursion vibration xlin = +/- 13 mm
