Recommended Enclosures
Directed Part Number 27050 27055
Model Number C2 102 C2 104
Fs (free-air resonance) 31.82 29.76
Vas (equivalent compliance, cu. ft.) 1.32 1.63
Vas (equivalent compliance, liters) 37.37 46.26
Qms (Q, mechanical) 6.02 5.89
Qes (Q, electrical) 0.53 0.57
Qts (total driver Q) 0.49 0.52
Re (DC resistance, ohms) 3.8 6.4
Z (nominal impedance, ohms) 4 8
Le (inductance, mh) 1.52 2.14
Efficiency (2.83v/1M, dB) 88.7 86.2
Xmax (one-way linear excursion, in.) 0.35 0.35
Xmax (one-way linear excursion, mm) 9 9
Power (continuous power handling)* 200 watts 200 watts
Peak power handling (music,)** 400 watts 400 watts
Mms (total moving mass, grams) 105 97
Cms (mechanical compliance, µM/N) 238 295
BI (motor strength, Tesla-M) 12.18 14.26
Sd (effective radiating area, sq. m.) 0.0327 0.0327
Sd (effective radiating area, sq. in.) 50.66 50.66
Frequency range (Hz) 30-2.5k 30-2.5k
Energy Bandwidth Product (EBP) 60 52
Typical Sealed Enclosure (cu. ft.) 0.5 0.6
SPL Sealed Enclosure (cu. ft.)** 0.30 0.35
Low Qtc Sealed Enclosure (cu. ft)* 0.75 0.80
Vented Enclosure (cu. ft.)
***
11
Port Tuning Frequency (Hz) 35 35
Port Diameter (inside in.) 3 3
Equivalent Square Port (in.) 2.68 x 2.68 2.68 x 2.68
Port Length (in.) 25 25
SPECIFICATIONS
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
Driver Physical Dimension
Speaker Displacement (cu. ft.) 0.05 0.05
Mounting hole diameter (in.) 8.75 8.75
Mounting depth (in.) 5 5
Basket diameter (in.) 10.66 10.66