Model
Polk Audio DB840
Rating
DIAM
8"
FS(Hz)
42
VAS(l)
15.4
QTS
0.6
PWR(W)
360
SPL(dB)
84.4
IMP(Ohm)
4x1
avb
PROD
Parameter Thiele–Small
Fs(Hz)
42
Vas(l)
15.4
Qts
0.6
Qms
13.4
Qes
0.628
Bl(Tm)
10.1
Mms(gr)
70
Cms(mm/N)
0.205
Rms(kg/s)
1.38
Le(mH)
2.3
Re(Ohm)
3.5
Sd(sq.mm)
23000
Vd(l)
0.138
X-max(mm)
6
X-mech(mm)
0
Parameter Umum
Diameter (inch)
8
Daya Maksimum (W)
360
Daya RMS (W)
180
Jumlah Coil
1
Impedansi Z-Nom (Ohm)
4
Efisiensi referensi η0(%)
0.18
Sensitivitas (dB) 1-W
84.4
Sensitivitas (dB) 2.8-V
88
Informasi Pemasangan
Speaker Displacement (l)
0
Diameter Total (mm)
203
Diameter Cutout (mm)
179
Kedalaman Pemasangan (mm)
100
Diameter Magnet (mm)
0
Enclosure Optimum
Enclosure
BP4, BP6P, Closed, Vented
