SPM-411SF 4" Midrange Speaker


- 0.76 INCH ROUND COPPER VOICE COIL

- 90 dB/SPL SENSITIVITY

- 30 WATT RMS

- 500 - 11000 Hz FREQUENCY RESPONSE

GENERAL SPECIFICATIONS

Nominal diameter4 inch
Nominal impedance8 Ω
Magnet weight11 oz
Power rating30W RMS
Peak power50W
Sensitivity90 dB
Frequency range500~11000 Hz
Voice coil diameter0.76 inch
Basket materialSteel
Magnet materialFerrite
Coil materialRound Copper
Former materialAluminum
Cone materialPaper
Surround materialFoam

THIELE-SMALL PARAMETERS

DC resistance(Re)7.3
Resonance frequency(Fs)500 Hz
Moving mass(Mms)
Compliance(Cms)
Force factor(BL)
Mechanical Q-factor(Qms)
Electrical Q-factor(Qes)
Total Q-factor(Qts)
Equivalent air volume(Vas)
Voice coil Inductance(Le)
Diaphragm area(Sd)

DIMENSIONS & WEIGHT

Multipack quantity12
Multipack size W x D x H46 cm × 31 cm × 18 cm
Multipack weight9 kg
Frequency Response
Impedence Curve
Dimensions