Model
JBL GTO 939
Rating
DIAM
69"
FS(Hz)
54
VAS(l)
32
QTS
0.7
PWR(W)
300
SPL(dB)
90
IMP(Ohm)
3x1
avb
PROD
Thiele-Small Parameters
Fs(Hz)
54
Vas(l)
32
Qts
0.7
Qms
7.24
Qes
0.775
Bl(Tm)
4.5
Mms(gr)
19
Cms(mm/N)
0.455
Rms(kg/s)
0.894
Le(mH)
0
Re(Ohm)
2.4
Sd(sq.mm)
22269
Vd(l)
0
X-max(mm)
0
X-mech(mm)
0
General Parameters
Diameter (inch)
69
Max Power(W.)
300
RMS Power(W.)
100
Number of Coils
1
Impedance Z-Nom(Ohm)
3
Reference efficiency η0(%)
0
Sensitivity(dB) 1-W
90
Sensitivity(dB) 2.8-V
0
Mounting Information
Speaker Displacement (l)
0
Total Diameter (mm)
0
Cutout Diameter (mm)
0
Mounting Depth (mm)
0
Magnet Diameter (mm)
0
Optimum Enclosures
Enclosures
Closed, Vented, BP4, BP6P
