Polk Audio DB1240
Polk Audio DB1240
Model

Polk Audio DB1240

Rating
DIAM
12"
FS(Hz)
30
VAS(l)
71.8
QTS
0.44
PWR(W)
720
SPL(dB)
88.1
IMP(Ohm)
4x1
avb
PROD

Thiele-Small Parameters

Fs(Hz)
30
Vas(l)
71.8
Qts
0.44
Qms
10.4
Qes
0.459
Bl(Tm)
14.7
Mms(gr)
151
Cms(mm/N)
0.187
Rms(kg/s)
2.73
Le(mH)
3
Re(Ohm)
3.5
Sd(sq.mm)
52000
Vd(l)
0.39
X-max(mm)
8
X-mech(mm)
0

General Parameters

Diameter (inch)
12
Max Power(W.)
720
RMS Power(W.)
360
Number of Coils
1
Impedance Z-Nom(Ohm)
4
Reference efficiency η0(%)
0.41
Sensitivity(dB) 1-W
88.1
Sensitivity(dB) 2.8-V
91.7

Mounting Information

Speaker Displacement (l)
0
Total Diameter (mm)
305
Cutout Diameter (mm)
280
Mounting Depth (mm)
153
Magnet Diameter (mm)
0

Optimum Enclosures

Enclosures
Closed, Vented, BP4, BP6

Speaker response