Epic_12, Epic 12, Low frequency driver – TC Sounds Epic 12 User Manual
Page 2: Thiele small & driver parameters
Epic 12”
Low Frequency Driver
Thiele Small & Driver Parameters
Parameter
12" Epic
Description
Qts
0.39
Total Q
Qes
0.415
Electrical Q
Qms
7.8
Mechanical Q
Fs
24
Hertz, Free Air Resonance
Res
3.66
Ohms, DC resistance
Ls
3.2
H, series inductance
Lp
2.9
H, lossy series inductance
Rp
4.2
Ohms, loss across Lp
Dia
250
m meters, effective
Vas
91
liters, air volume equivalent
mms
163
grams, effective mass
cms
269
um/N, compliance
bl
14.8
T*m, motor strength
SplSens
86.6
dBSPL max @1W absorbed
Parameter
12" Epic
Description
Geometric Stroke
18.1
Millimeters, (voice coil - gap) / 2
70% BL
22.9
Millimeters, BL is 0.7 original value (one way)
Xmech
32.7
Mechanical displacement limit (one way)
Long Term Power
500
Watts
Program Power
2000
Watts, short term peak power limit
*Impedance and TS parameters measured with the coil in series.
*For full system alignment and enclosure recommendations, please visit our website: www.tcsounds.com