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Original version of P-Audio's Challenger Series C18-650EL, known to work well as a good budget option in Rog Mogale's X1 6th Order bandpass enclosure.
Power handling 650W AES
Frequency range 25-500 Hz
Resonanct frequency Fs 45 Hz
Impedance R 8 Ohm
Sensitivity 98 dB (2,83V; 1m)
DC resistance Re 5.3 Ohm
BL product 25.24 Tm
Voice coil inductance L 1.64 mH
Effective piston radiating area Sd 1250 cm2
Effective moving mass incl. air load Mms 160,76 g
Compliance equivalent volume Vas 158,25 l
Total Q factor Qts 0.37
Mechanical Q Qms 9.57
Electrical Q Qes 0.39
Voice coil diameter 220 mm
Maximum linear excursion Xmax 5 mm
Mounting diameter 423.8 mm
Overall diameter 475,8 mm
Mounting depth 190,3 mm
This product has been discontinued - please do not try to order this item we will not be able to supply it - the product details are here for reference only. Please contact a member of staff, and we may be able to find an equivalent product for you.