Silver Flute W20RC38-04 8" Woofer Wool Cone 4 ohm

Silver Flute W20RC38-04 8" Wool Cone Woofer- 203mm- 4 ohm

• Wool Cone
• Cast Frame
• 38mm VC Ø on aluminum former
• Vented Pole Piece
• Rubber Surround
• Includes black phillips head wood screws for mounting
• Use QC205R & QC205B quick connects

The Silver Flute line offers exceptional value, build quality, and versatility. The woofer cones and dust caps are made from a special mixture of wool and paper fibers. These wool fibers help reduce cone resonance, and give the woofers a slightly warmer sound than traditional paper cones. The woofers have durable rubber surrounds and robust cast metal frames. The large voice coils are vented through the back plate. These Silver Flute woofers are available in 4 and 8 ohm. Consider this product for home stereo, surround sound, autosound systems, and commercial line arrays. 

Mechanical Specifications:

Frame diameter 203mm (8")

Cut out diameter 183mm (7.2")

Bolt hole circle 195mm (7.67")

Screw holes 4.2mm (0.17")

Flange thickness 5mm (0.20")

Depth (from back of flange) 86mm (3.39")

Suggested Box Alignments:

0.3 cubic foot sealed box for an f3 of 105Hz

0.5 cubic foot with 2" diameter vent by 3.5" long for an f3 of 62Hz

0.75 cubic foot with 2" diameter vent by 3" long (or 3" x 8") for an f3 of 51Hz

T/S Parameters:

Re 3.7 Ohms

Sensitivity 93.7 dB

Power 100 watts

Fs 31.0 Hz

Qms 1.51

Qes 0.27

Qts 0.23

Vas 72.3 Ltrs

Mms 23.7 g

Cms 1111.3 mM/N

Sd 0.0214 M2

BL 7.9 TM

X-max 5 mm

Le @ 1kHz 0.52 mH

Krm 1.324 mW

Kxm 17.644 mH

Erm 0.819

Exm 0.596