Model
Hertz ECX 690.5
Rating
DIAM
69"
FS(Hz)
59
VAS(l)
29
QTS
0.73
PWR(W)
300
SPL(dB)
90
IMP(Ohm)
4x1
avb
PROD
Thiele-Small Parameters
Fs(Hz)  
            59
        
Vas(l)  
            29
        
Qts  
            0.73
        
Qms  
            3.7
        
Qes  
            0.91
        
Bl(Tm)  
            5
        
Mms(gr)  
            19
        
Cms(mm/N)  
            0.387
        
Rms(kg/s)  
            1.884
        
Le(mH)  
            0
        
Re(Ohm)  
            3.3
        
Sd(sq.mm)  
            23197
        
Vd(l)  
            0.081
        
X-max(mm)  
            4
        
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)  
            4
        
Reference efficiency η0(%)  
            0.63
        
Sensitivity(dB) 1-W  
            90
        
Sensitivity(dB) 2.8-V  
            93.8
        
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  
            BP4, BP6P, Closed, Vented
        
