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S P E C I F I C AT I O N S
Directed Part Number
27060
Model Number
C2 122
Fs (free-air resonance)
23.55
Vas (equivalent compliance, cu. ft.)
4.42
Vas (equivalent compliance, liters)
125.29
Qms (Q, mechanical)
6.85
Qes (Q, electrical)
0.40
Qts (total driver Q)
0.38
Re (DC resistance, ohms)
3.7
Z (nominal impedance, ohms)
4
Le (inductance, mh)
1.48
Efficiency (2.83v/1M, dB)
87.9
Xmax (one-way linear excursion, in.)
0.35
Xmax (one-way linear excursion, mm)
9
Power (continuous power handling)*
250 watts
Peak power handling (music,)**
500 watts
Mms (total moving mass, grams)
136
Cms (mechanical compliance, µM/N)
335
BI (motor strength, Tesla-M)
13.60
Sd (effective radiating area, sq. m.)
0.0515
Sd (effective radiating area, sq. in.)
79.78
Frequency range (Hz)
25-2.5k
Energy Bandwidth Product (EBP)
59
D r i v e r P h y s i c a l D i m e n s i o n
Speaker Displacement (cu. ft.)
0.08
Mounting hole diameter (in.)
11
Mounting depth (in.)
6
Basket diameter (in.)
12.4
R e c o m m e n d e d E n c l o s u r e s
Typical Sealed Enclosure (cu. ft.)
0.75
SPL Sealed Enclosure (cu. ft.)**
0.5
Low Qtc Sealed Enclosure (cu. ft)*
1
Vented Enclosure (cu. ft.) ***
1.2
Port Tuning Frequency (Hz)
40
Port Diameter (inside in.)
4
Equivalent Square Port (in.)
3.5 x 3.5
Port Length (in.)
20
1. Parameters listed are for conventional applications only, for further help please call Tech Audio Support
2. Recommend enclosure are NET Box Volumes, speaker and port displacement are NOT calculated into the
volume of the enclosure, you will need to add these volumes to calculate GROSS volume for the enclosure.
3. The approximate volume of air displaced by the port can be calculated by using the square port area (H x W)
times the port length and then divide by 1728 to get cubic feet.
4. Please call Technical Audio support for further specifications and information: 1-800-876-0800 ext. 2032
Specifications subject to change without notice © 2005 Directed Electronics, Vista, CA.—all rights reserved
27065
C2 124
24.56
4.42
125.25
6.71
0.41
0.39
6.5
8
1.92
88.3
0.35
9
250 watts
500 watts
127
329
17.37
0.0515
79.78
25-2.5k
60
0.08
11
6
12.4
0.75
0.5
1
1.0
40
4
3.5 x 3.5
19
* For SQ (sound quality applications) amps should be between
Pe and Peak power ratings.
** SPL usage only! Not rated for continuous use at this level.
*** Sub-sonic filters should always be used and adjusted specifically
for vented box designs.
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