PL 4" Midrange
Vifa
Type Number:PL11MH09-08

Features

The PL series is designed for the discerning audiophile customer. To meet the needs of this audience, several new technologies were developed with the goal of lowering distortion and damping in the speaker. The coated paper cone reduces vibration and standing waves, and the vented motor system minimizes power compression. The combined result is a very open and dynamic sound.

Driver Highlights: Magnesium chassis, NRSC cone, NR rubber surround

Specs

Electrical Data
Nominal Impedance Zn 8 ohm
Maximum Impedance Zo 29 ohm
DC Resistance Re 5.9 ohm
Voice Coil Inductance Le 0.38 mH
TS Parameters
Resonance Frequency fs 73 Hz
Mechanical Q factor QMS 1.65
Electrical Q factor QES 0.41
Total Q factor Qts 0.33
Force Factor Bl 5.9 Tm
Mechanical Resistance Rms 1.48 Kg/s
Moving Mass Mms 5.3 g
Effective Piston Area sd 58 cm^2
Equivalent Volume Vas 4.25 ltrs
Sensitivity 2.83V/1m 87 dB
Power Handling
Long-term Max Power IEC 18.3 90 W
Short Term Max power IEC 18.2 150 ohm
Voice Coil and Magnet Parameters
Voice Coil Diameter 25 mm
Voice Coil Height 7.5 mm
Height of the Gap 4 mm
Weight of Magnet 0.415 Kg

Frequency

Mechanical Dimensions