315 SWR
315 SWR 39 134 PPX AL 4L 8 ohm    -    Order ID: 831857

The ultimative 12" subwoofer driver with an over-sized magnet (1.3 kg) and a heavy voice coil securing a clean, fast, and dry bass performance even at high volumes. Nothing is spared in this driver. Highly recommended for surround sound systems and THX systems.

 

 

 

 

315 SWR

 

 

 

 

 

 

 

Thiele Small parameters:

 

 

Free air

Common

Baffled

 

 

Nominal impedance

Zn

(ohm)

 

8

 

 

 

Minimum impedance/at freq.

Zmin

(ohm/Hz)

 

6.3/124

 

 

 

Maximum impedance

Zo

(ohm)

 

46.9

 

 

 

DC resistance

Re

(ohm)

 

5.5

 

 

 

Voice coil inductance

Le

(mH)

 

2.8

 

 

 

Capacitor in series with 8 ohm
(for impedance compensation)

Cc

(F)

 

24

 

 

 

Resonance Frequency

fs

(Hz)

24.0

 

22.9

 

 

Mechanical Q factor

Qms

 

3.72

 

3.90

 

 

Electrical Q factor

Qes

 

0.49

 

0.52

 

 

Total Q factor

Qts

 

0.44

 

0.46

 

 

F (Ratio fs/Qts)

F

(Hz)

 

 

50

 

 

Mechanical resistance

Rms

(Kg/s)

 

3.25

 

 

 

Moving mass

Mms

(g)

80.2

 

88.2

 

 

Suspension compliance

Cms

(mm/N)

 

0.55

 

 

 

Effective cone diameter

D

(cm)

 

25.7

 

 

 

Effective piston area

Sd

(cm)

 

520.0

 

 

 

Equivalent volume

VAS

(ltrs)

 

210.0

 

 

 

Force factor

Bl

(N/A)

 

11.6

 

 

 

Reference voltage sensitivity
Re 2.83V 1m at 124 Hz (Measured)

 

(dB)

 

 

89.3

 

 

 

Magnet and voice coil parameters:

 

 

 

 

 

 

 

Voice coil diameter

d

(mm)

39

 

 

 

 

Voice coil length

h

(mm)

26.0

 

 

 

 

Voice coil layers

n

 

4

 

 

 

 

Flux density in gap

B

(T)

0.99

 

 

 

 

Total useful flux

 

(mWb)

1.52

 

 

 

 

Height of the gap

hg

(mm)

8

 

 

 

 

Diameter of magnet

dm

(mm)

134

 

 

 

 

Height of magnet

hm

(mm)

22

 

 

 

 

Weight of magnet

 

(kg)

1.28

 

 

 

 

 

Power handling:

 

 

 

 

 

 

Long term Max System Power (IEC)

(W)

220

 

 

 

 

Max linear SPL (rms) / by power

(dB/W)

110/170