Because this is CELSESTION loudspeaker the impedance is engraved on the speaker's chassis, propably its 8Ohms
here is more info:
General specifications
Nominal diameter 12", 305mm
Power Rating 75W
Nominal impedance 8Ω and 16Ω
Sensitivity 97dB
Chassis type Pressed steel
Voice coil diameter 1.75", 44.5mm
Voice coil material Round copper
Magnet type Ceramic
Magnet weight 35oz, 0.99kg
Frequency range 80-5000Hz
Resonance frequency, Fs 85Hz
DC resistance, Re 6.77Ω & 12.9Ω
Mounting Information
Diameter 12.2", 309mm
Overall depth 5.0", 127mm
Magnet structure diameter 5.7", 145mm
Cut-out diameter 11.1", 283mm
Mounting slot dimensions 0.31", 7.9mm ?
Number of mounting slots 4
thanks you guys! hey archenemy,on the product description it says i have a 12'' jaguar, i think celestion makes this speaker but i am not sure, do you know anything about this speaker or any specs on it thanks man!!