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Silver Flute W14RC25-04 5.5″ Woofer Wool Cone Woofer 4 ohm

Wool Cone
Cast Frame
25mm 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, 8, and 16 ohm. 

Consider this product for home stereo, surround sound, autosound systems, and commercial line arrays. 

Please look at the mechanical specifications carefully as terms like 5″, 6.5″, and 8″ are generalizations.

Mechanical Specifications:

Frame diameter 142mm (5.59″)
Cut out diameter 124mm (4.88″)
Bolt hole circle 135mm (5.31″)
Screw holes 4.2mm (0.17″)
Flange thickness 5mm (0.20″)
Depth (from back of flange) 67mm (2.64″)

Suggested Box Alignments:

0.15 cubic foot sealed box for an f3 of 120Hz
0.2 cubic foot with 1.5″ diameter vent by 5″ long for an f3 of 75Hz
0.35 cubic foot with 2″ diameter vent by 6″ long for an f3 of 60Hz

Specifications:

Re 3.7 Ohms
Sensitivity 90 dB
Power 60 watts
Fs 42.5 Hz
Qms 3.70
Qes 0.31
Qts 0.28
Vas 19.0 Ltrs
Mms 7.95 g
Cms 1767.6 mM/N
Sd 0.0087 M2
BL 5.07 TM
X-max 3.5 mm
Le @ 1kHz 0.52 mH

Krm 0.913 mW
Kxm 8.302 mH
Erm 0.840
Exm 0.684
Box Rec.: 7 ltrs, 1.5″Ø V x 4.25″ L

Frequency & Impedance Response: