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SPECIFICATIONS
Directed Part Number CO104S CO124S CO154S
Model Number 32100 32105 32115
Thiele/Small Parameters
Fs (free-air resonance, Hz) 39.2 25.6 25.2
Vas (equivalent compliance, cu. ft.) 1.080 4.017 7.098
Vas (equivalent compliance, liters) 30.600 113.790 201.070
Qms (Q, mechanical) 3.53 4.72 6.08
Qes (Q, electrical) 0.68 0.55 0.51
Qts (total driver Q) 0.57 0.49 0.47
Re (DC resistance, ohms) 3.6 3.55 3.77
Z (nominal impedance, ohms) 4 4 4
Le (inductance, mh) 1.38 1.37 1.61
Efficiency (1W @ 1M, dB) 86.1 87.2 89.9
Xmax (one way linear excursion, in.) 0.406 0.410 0.453
Xmax (one way linear excursion, mm) 10.2925 10.4075 11.5
Pe (continuous power handling,
watts)
200 200 250
Peak power handling (music, watts) 400 500 600
Mms (total moving mass, grams) 101.00 127 195
Cms (mechanical compliance, mm/N) 0.180564 0.294721 0.211994
Bl (motor strength, Tesla-M) 10.88 11.61 14.82
Sd (effective radiating area, sq. cm.) 346.361 522.792 819.398
Sd (effective radiating area, sq. in.) 53.706 81.064 127.055
Frequency range (Hz) 39 - 250Hz 25 - 250Hz 25 - 250Hz
Energy Bandwidth Product (EBP) 58 47 49
Driver Physical Dimension
Speaker Displacement (cu ft) 0.048 0.061 0.116
Speaker Outer Diameter (inches/mm) 10.31/ 262 12.40/ 315 15.40/ 391
Mounting hole diameter (inches/mm) 9.23/ 232 10.91/ 277 13.82/ 351
Mounting depth (inches/mm) 5.12/ 130 5.51/ 140 6.46/ 164
Magnet Weight (Oz) 38.60 41 70
Basket diameter (inches/mm) 10.16/258 12.21/310 15.16/385
Recommended Enclosures
Typical sealed enclosure (cu. ft.) 0.75 1 2
Specifications subject to change without notice