The SB Acoustics SB23NRXS45-8 8" woofer was developed with a Norecx non-resonant poly-coated Papyrus fibre cone.Low damping SBR rubber surround with high exertion and resilience. Open structure cast frame for reduced reflections and compression. Aluminium alloy for light weight, non-magnetic and extra rigidity. Shorting Copper cap on pole piece. Non-inductive 30mm coil former.
Features:
Low damping rubber surround
Shorting ring in motor system
Non-inductive voice coil former
Proprietary cone materials made-in house
Cast Aluminium chassis
Shallow design
Specifications
power handling (continuous/programme) = 60 W
resonance frequency fs = 27 Hz
impedance R = 8 Ohm
sound pressure level SPL = 88,5 dB (2,83V; 1m)
DC resistance Re = 5,6 Ohm
force factor BL = 7,5 N/A
voice coil inductance L = 0,6 mH
effective piston radiating area Sd = 216 cm2
effective mechanical mass incl. air load mms = 24,5 g
