Model
Infinity PRIMUS 1270
Rating
DIAM
12"
FS(Hz)
29.7
VAS(l)
75.7
QTS
0.49
PWR(W)
600
SPL(dB)
87.3
IMP(Ohm)
4x1
avb
PROD
Thiele-Small Parameters
Fs(Hz)  
            29.7
        
Vas(l)  
            75.7
        
Qts  
            0.49
        
Qms  
            3.9
        
Qes  
            0.56
        
Bl(Tm)  
            13.4
        
Mms(gr)  
            150
        
Cms(mm/N)  
            0.19
        
Rms(kg/s)  
            7.15
        
Le(mH)  
            37.2
        
Re(Ohm)  
            3.6
        
Sd(sq.mm)  
            53000
        
Vd(l)  
            0.599
        
X-max(mm)  
            11
        
X-mech(mm)  
            0
        
General Parameters
Diameter (inch)  
            12
        
Max Power(W.)  
            600
        
RMS Power(W.)  
            300
        
Number of Coils  
            1
        
Impedance Z-Nom(Ohm)  
            4
        
Reference efficiency η0(%)  
            0.34
        
Sensitivity(dB) 1-W  
            87.3
        
Sensitivity(dB) 2.8-V  
            90.8
        
Mounting Information
Speaker Displacement (l)  
            0
        
Total Diameter (mm)  
            307
        
Cutout Diameter (mm)  
            279
        
Mounting Depth (mm)  
            150
        
Magnet Diameter (mm)  
            0
        
Optimum Enclosures
Enclosures  
            BP4, Closed
        
