Model
Hertz ES F20.5
Rating
DIAM
8"
FS(Hz)
52
VAS(l)
13.2
QTS
0.4
PWR(W)
500
SPL(dB)
88
IMP(Ohm)
4x1
avb
UNK
Thiele-Small Parameters
Fs(Hz)  
            52
        
Vas(l)  
            13.2
        
Qts  
            0.4
        
Qms  
            3.38
        
Qes  
            0.45
        
Bl(Tm)  
            10.6
        
Mms(gr)  
            49
        
Cms(mm/N)  
            0.191
        
Rms(kg/s)  
            4.737
        
Le(mH)  
            0
        
Re(Ohm)  
            3.2
        
Sd(sq.mm)  
            22075
        
Vd(l)  
            0.11
        
X-max(mm)  
            5
        
X-mech(mm)  
            0
        
General Parameters
Diameter (inch)  
            8
        
Max Power(W.)  
            500
        
RMS Power(W.)  
            200
        
Number of Coils  
            1
        
Impedance Z-Nom(Ohm)  
            4
        
Reference efficiency η0(%)  
            0
        
Sensitivity(dB) 1-W  
            88
        
Sensitivity(dB) 2.8-V  
            0
        
Mounting Information
Speaker Displacement (l)  
            0.4
        
Total Diameter (mm)  
            0
        
Cutout Diameter (mm)  
            181
        
Mounting Depth (mm)  
            72
        
Magnet Diameter (mm)  
            0
        
Optimum Enclosures
Enclosures  
            BP6P, Vented
        
