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BUYOUT CW-125B20U 4-1/2" Paper Cone Woofer 8 Ohm

Factory BuyoutsPart # 299-4246
Model: CW-125B20U

The CW-125B20U 4-1/2" Paper Cone Woofer utilizes a paper cone, foam surround and large ferrite magnet.

Key Features

  • 1" 4-layer voice coil for increased power handling ability
  • Paper cone and foam surround for a natural tone
  • 1.75mm Xmax for impressive bass performance
BUYOUT $3.98
MSRP: $4.98
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Overview

CW-125B20U 4-1/2" Paper Cone Woofer 8 Ohm

The CW-125B20U 4-1/2" Paper Cone Woofer utilizes a paper cone, foam surround and large ferrite magnet. A 1" 4-layer voice coil on an aluminum former helps this driver handle 20 watts RMS, making this a great choice for compact systems.


Product Details

BrandCoast Buyouts
ModelCW-125B20U
Part Number299-4246
UPC848864073682
Unit of MeasureEach
Weight1.2

Product Specifications

Nominal Diameter4-1/2"
Bolt Circle Diameter4.625
Power Handling (RMS)20 Watts
Power Handling (MAX)40 Watts
Impedance8Ω
Frequency Response90 to 6,000Hz
Sensitivity87.09dB 2.83V/1m
Voice Coil Diameter1"

Thiele-Small Parameters

Resonant Frequency (Fs)90.94Hz
DC Resistance (Re)5.73Ω
Voice Coil Inductance (Le)0.7837mH
Mechanical Q (Qms)4.35
Electromagnetic Q (Qes)0.7721
Total Q (Qts)0.6557
Compliance Equivalent Volume (Vas)0.1201ft³
Diaphragm Mass Inc. Airload (Mms)6.909g
Maximum Linear Excursion (Xmax)1.75mm
Surface Area of Cone (Sd)73.9cm²

Materials of Construction

Cone MaterialPaper
Surround MaterialFoam
Voice Coil Wire MaterialCopper
Voice Coil FormerAluminum
Basket / Frame MaterialSteel
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter4.7"
Baffle Cutout Diameter4.25"
Depth2.25"
# Mounting Holes4

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