Vifa M18WO-07-08 7" Paper Cone Woofer 8 ohm New Old Stock 

Blemished (scratches on frame). New unused item.

• Coated air-dried paper cone with rubber surround
• Cast magnesium frame
• Large long-throw voice coil on Kapton former
• Vented pole piece
• Made in Denmark 

Vifa M18 variants are found in speakers by Sonus Faber, Ruark, Audio Physic, Totem, Aerial, Apogee, etc.

Specs:

Power Handling (RMS) 70 Watts

Power Handling (MAX) 140 Watts

Impedance 8 ohms

Frequency Response 35 to 4,000Hz

Sensitivity 88.5dB 2.83V/1m

Voice Coil Diameter 1.5"

Thiele-Small Parameters

Resonant Frequency (Fs) 36Hz

Qms 1.85

Qes 0.3

Qts 0.3

Vas 0.98ft³

BL Product (BL) 8.4T·m

Mms 17.6g