SB Acoustics SB20FRPC30-8 8" Fullrange Proprietary cone material with natural fibers made... more
Product information "SB Acoustics SB20FRPC30-8"
SB Acoustics SB20FRPC30-8 8" Fullrange
- Proprietary cone material with natural fibers made in-house
- Light weight foam surround
- Optimized whizzer cone for smooth high frequency extension
- Phase plug for controlled radiation
- Large spider for improved linearity
- Optimized motor system
- Vented reinforced plastic chassis
- Non-conductive coil former
- Long life lead wires
- Extended copper sleeve on pole piece
Specifications
- resonance frequency fs = 39,4 Hz
- impedance R = 8 Ohm
- sound pressure level SPL = 92 dB (2,83V; 1m)
- DC resistance Re = 6 Ohm
- force factor BL = 7,15 N/A
- voice coil inductance L = 0,22 mH
- effective piston radiating area Sd = 216 cm2
- effective mechanical mass incl. air load mms = 16,3 g
- equivalent volume of compliance Vas = 66,3 l
- total Q factor Qts = 0,45 (Qms=10,1, Qes=0,47)
- voice coil diameter = 30,5 mm
- maximum peak linear excursion vibration xlin = +/- 4,1 mm
- mounting diameter d = 187 mm
- overall diameter d = 218 mm
- mounting depth (not countersunk) t = 94,3 mm
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