PL 6.5" Woofer
Vifa
Type Number:PL18WO09-04

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 4 ohm
Maximum Impedance Zo 29 ohm
DC Resistance Re 3 ohm
Voice Coil Inductance Le 0.56 mH
TS Parameters
Resonance Frequency fs 37 Hz
Mechanical Q factor QMS 2.53
Electrical Q factor QES 0.33
Total Q factor Qts 0.29
Ratio fs/Qts F 128
Force Factor Bl 6.3 Tm
Mechanical Resistance Rms 1.75 Kg/s
Moving Mass Mms 18.5 g
Suspension Compliance Cms 1.02 mm/N
Effective Piston Area sd 132 cm^2
Equivalent Volume Vas 25 ltrs
Sensitivity 2.83V/1m 89 dB
Ratio BL/v Re 3.64
Power Handling
Long-term Max Power IEC 18.3 300 W
Short Term Max power IEC 18.2 400 ohm
Voice Coil and Magnet Parameters
Voice Coil Diameter 40 mm
Voice Coil Height 14 mm
Height of the Gap 6 mm
Weight of Magnet 0.7 Kg

Frequency

Mechanical Dimensions