SB Acoustics SB12MNRX25-4 4'' Midrange

SB Acoustics

SB Acoustics SB12MNRX25-4 4'' Midrange


Product Specifications
Nominal Impedance 4 ohms
DC resistence,Re 3.2 ohms
voice coil inductance,Le 0.14 mH
Free air resonance,Fs 58 Hz
Sensitivity(2.83V/1m) 88.5 dB
Mechanical Q-factor,Qms 3.6
Electrical Q-factor,Qes 0.42
Total Q-factor,Qts 0.37
Moving mass incl. air,Mms 4.9 g
Force factor,BI 3.7 Tm
Equivalent volume,Vas 5.5 liters
Compliance,Cms 1.55 mm/N
Mechanical loss,Rms 0.5 Kg/s
Rated power handling* 50W
Effective piston area,Sd 50 cm²
Voice coil diameter 25.4 mm
Voice coil height 9.5 mm
Air gap height 5 mm
Linear coil travel(p-p) 4.5 mm
Magnetic flux density 0.9 T
Magnetic weight 0.4 Kg
Net weight 0.85 Kg

Frequency and Impedance Graph:

SB Acoustics SB12MNRX25-4 4'' Midrange

Drawing:

SB Acoustics SB12MNRX25-4 4'' Midrange