SPECIFICATIONS
Model/Part Number
Thiele/Small Parameters
Fs (free-air resonance, Hz)
Vas (equivalent compliance, cu. ft.)
Vas (equivalent compliance, liters)
Qms (Q, mechanical)
Qes (Q, electrical)
Qts (total driver Q)
Re (DC resistance, ohms)
Z (nominal impedance, ohms)
Le (inductance, mh)
Efficiency (1W @ 1M, dB)
Xmax (one way linear excursion, in.)
Xmax (one way linear excursion, mm) 10.2925
Pe (continuous power handling,
watts)
Peak power handling (music, watts)
Mms (total moving mass, grams)
Cms (mechanical compliance, mm/N)
Bl (motor strength, Tesla-M)
Sd (effective radiating area, sq. cm.)
Sd (effective radiating area, sq. in.)
Frequency range (Hz)
Energy Bandwidth Product (EBP)
Driver Physical Dimension
Speaker Displacement (cu ft)
Speaker Outer Diameter (inches/mm)
Mounting hole diameter (inches/mm) 9.23/ 232
Mounting depth (inches/mm)
Magnet Weight (Oz)
Basket diameter (inches/mm)
Recommended Enclosures
Typical sealed enclosure (cu. ft.)
Specifications subject to change without notice
14
CO104S
CO124S
39.2
25.6
1.080
4.017
30.600
113.790
3.53
4.72
0.68
0.55
0.57
0.49
3.6
3.55
4
4
1.38
1.37
86.1
87.2
0.406
0.410
10.4075
200
200
400
500
101.00
127
0.180564
0.294721
10.88
11.61
346.361
522.792
53.706
81.064
39 - 250Hz
25 - 250Hz
58
47
0.048
0.061
10.31/ 262
12.40/ 315
10.91/ 277
5.12/ 130
5.51/ 140
38.60
41
10.16/258
12.21/310
0.75
1
© 2012 MD Audio Engineering—all rights reserved
CO154S
25.2
7.098
201.070
6.08
0.51
0.47
3.77
4
1.61
89.9
0.453
11.5
250
600
195
0.211994
14.82
819.398
127.055
25 - 250Hz
49
0.116
15.40/ 391
13.82/ 351
6.46/ 164
70
15.16/385
2