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 Resistance5.66 Ω±5.0%
Resonant Frequency27.04 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 Bandwidth20Hz - 2kHz 12 dB/Oc
Effective Piston Area490.9 cm2
Moving Mass98.1 g
Motor Force Factor13.06 T•m
Voice Coil Inner Diameter51.32 mm
Gap Height8 mm
Maximum Linear Excursion12.5 mm
Ferrofluid Type
Minimum Impedance7.09 Ω±7.5%
Voice Coil Inductance0.79 mH
Mechanical Q Factor8.55
Electrical Q Factor0.55
Total Q Factor0.52
Ratio52 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance353 μm/N
Effective Cone Diameter25 cm
Motor Efficiency Factor30.1 (T•m2)/Ω
Voice Coil Former MaterialGSV
Transducer Mass6.36 Kg
Equivalent Volume119.47 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.