SPECIFICATIONS
Model/Part Number CO104S CO124S CO154S
Thiele/Small Parameters
Fs (free-air resonance, Hz) 39.4 35.4 26.8
Vas (equivalent compliance, cu. ft.) 0.948 2.127 6.837
Vas (equivalent compliance, liters) 26.84 62.786 193.605
Qms (Q, mechanical) 8.477 6.168 7.66
Qes (Q, electrical) 0.54 0.641 0.415
Qts (total driver Q) 0.510 0.580 0.394
Re (DC resistance, ohms) 3.6 3.6 3.6
Z (nominal impedance, ohms) 4 4 4
Le (inductance, mh) 2.54 1.71 3.073
Efficiency (1W @ 1M, dB) 86.7 88.3 91.4
Xmax (one way linear excursion, in.) 0.406 0.410 0.453
Xmax (one way linear excursion, mm) 10.2925 10.4075 11.5
RMS Power Watts
350 350 550
Nominal Power Watts 700 700 1100
MAX Music Power Watts 1400 1400 2200
Mms (total moving mass, grams) 113.51 138.6 188.64
Cms (mechanical compliance, mm/N) 0.143381 0.145374 0.186376
Bl (motor strength, Tesla-M) 13.7 13.1 16.6
Sd (effective radiating area, sq. cm.) 363.05 551.55 855.3
Sd (effective radiating area, sq. in.) 56.273 85.490 132.572
Frequency range (Hz) 39-250 35-250 26-250
Energy Bandwidth Product (EBP) 73 55 65
Driver Physical Dimension
Speaker Displacement (cu ft) 0.053 0.067 0.123
Speaker Outer Diameter (inches/mm) 10.28/261 12.44/316 15.47/393
Mounting hole diameter (inches/mm) 9.13/232 10.91/277 13.82/351
Mounting depth (inches/mm) 5.22/132.5 5.61/142.5 6.79/172.5
Magnet Weight (Oz) 50 50 90
Basket diameter (inches/mm) 10.16/258 12.20/310 15.16/385
Recommended Enclosures
Typical sealed enclosure (cu. ft.) 0 .75 1 2
Specifications subject to change without notice
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