Transducer Size (Millimeters)304.8
DC Resistance5.66
Resonant Frequency27.04
Half Space Sensitivity87.45
Rated Noise Power175
Test Spectrum Bandwidth20Hz - 2kHz

Transducer Size (Millimeters) 304.8
DC Resistance 5.66 Ω±5.0%
Resonant Frequency 27.04 Hz15%
Half Space Sensitivity @ 2.83V87.45 dB±1.01
Sensitivity @ 1W/1m86.9 dB±1.01
Rated Noise Power (IEC 268-5 18.1)175 W
Test Spectrum Bandwidth 20Hz - 2kHz 12 dB/Oc
Effective Piston Area 490.9 cm2
Moving Mass 98.1 g
Motor Force Factor 13.06 T•m
Voice Coil Inner Diameter 51.32 mm
Gap Height 8 mm
Maximum Linear Excursion 12.5 mm
Ferrofluid Type
Minimum Impedance 7.09 Ω±7.5%
Voice Coil Inductance 0.79 mH
Mechanical Q Factor 8.55
Electrical Q Factor 0.55
Total Q Factor 0.52
Ratio 52 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 353 μm/N
Effective Cone Diameter 25 cm
Motor Efficiency Factor 30.1 (T•m2)/Ω
Voice Coil Former Material GSV
Transducer Mass 6.36 Kg
Equivalent Volume 119.47 L

The 12 inch 8 ohm member XXLS product family has all the design features suitable for a high performance, high excursion subwoofer driver. The motor features a double ferrite magnet motor, supporting high excursion, and aluminium shorting rings and pole extenders, lowering and linearizing the inductance of the overhung voice coil. The light stiff composite paper cone is vented under the dust cap, to reduce air compression. The suspension system features a low-creep rubber surround, and a nomex spider, ensuring long-term reliability under high power conditions. The product also features a rigid cast aluminium basket.