RS180P-4 7" Reference Paper Woofer 4 Ohm

Data sheet

Impedance

4 Ohm

Driver type

Midwoofer

Sensitivity

90.8 dB @ 2.83V/1m

Frequency range

35 - 8000 Hz

Resonance frequency (fs)

37.7 Hz

DC resistance (Re)

3.1 ohms

Mechanical Q (Qms)

1.98

Electrical Q at Fs (Qes)

0.48

Total Q factor (Qts)

0.39

Speaker diameter

7"

Power handling

90 W

Voice coil inductance (L)

0.47 mH @ 1 kHz

Effective mechanical mass incl air load (mms)

14.8g

Effective piston radiating area (Sd)

126.7 cm²

Force factor (BL)

4.67 Tm

Equivalent volume of compliance (Vas)

27.3 liters

Overall diameter

180.5 mm

Mounting diameter

146 mm