Transducer Size (Millimeters)165.1
DC Resistance2.73
Resonant Frequency42.18
Half Space Sensitivity86.7
Rated Noise Power75
Test Spectrum Bandwidth20Hz - 1kHz

Transducer Size (Millimeters) 165.1
DC Resistance 2.73 Ω±5.0%
Resonant Frequency 42.18 Hz15%
Half Space Sensitivity @ 2.83V86.7 dB±1.01
Sensitivity @ 1W/1m83.3 dB±1.01
Rated Noise Power (IEC 268-5 18.1)75 W
Test Spectrum Bandwidth 20Hz - 1kHz 12 dB/Oc
Effective Piston Area 123.5 cm2
Moving Mass 35.3 g
Motor Force Factor 8.27 T•m
Voice Coil Inner Diameter 38.44 mm
Gap Height 8 mm
Maximum Linear Excursion 8.2 mm
Ferrofluid Type
Minimum Impedance 3.64 Ω±7.5%
Voice Coil Inductance 0.65 mH
Mechanical Q Factor 4.92
Electrical Q Factor 0.38
Total Q Factor 0.35
Ratio 119.16 fs/Qts
Energy Bandwidth Product ((1/Qes)•fs)
Suspension Compliance 466.7 μm/N
Effective Cone Diameter 12.54 cm
Motor Efficiency Factor 25.1 (T•m2)/Ω
Voice Coil Former Material GSV
Transducer Mass 2.4 Kg
Equivalent Volume 11.2 L

The SLS line combines high quality performance with an affordable design. This 6.5 inch 4 ohm member of the SLS family features a rigid steel basket, a paper cone, and a ferrite magnet motor with aluminium shorting ring for improved distortion performance.