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B&C 18RBX100-4 18" Professional Subwoofer 4 Ohm

B&C SpeakersPart # 294-6024
Model: 18RBX100-4
B&C's 18RBX100-4 sets a new standard for cost-effective high output low frequency reproduction. With 10 mm Xmax, 1,000 watt power handling, and 97 dB efficiency this driver will deliver extreme levels with incredibly low distortion without breaking the bank.

Key Features

  • Large 4" voice coil handles up to 1,000 watts RMS
  • Waterproof cone for use in less than ideal conditions
  • Optimized dual silicon spiders keep excursion linear
  • Extensive venting keeps power compression to a minimum
Your Price: $372.24
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MSRP: $620.40
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Overview

B&C 18RBX100-4 18" Professional Subwoofer 4 Ohm

The 18RBX100-4 from B&C Speakers has been designed to set the standard for cost-effective high output subwoofers. Using a 1" long/4" diameter copper wire voice coil with high thermal capability, and a ventilated magnet assembly this driver exhibits low power compression with impressive power handling. A very low distortion figure results from using a double spider design and dual demodulation rings in the magnetic path. The 18RBX100-4 also has a proprietary water-proof cone treatment that makes this driver suitable for use in outdoor situations.

Product Details

BrandB&C Speakers
Model18RBX100-4
Part Number294-6024
UPC848864032610
Unit of MeasureEach
Weight31.35

Product Specifications

Nominal Diameter18"
Bolt Circle Diameter17.32
Power Handling (RMS)2000 Watts
Impedance4Ω
Frequency Response35 to 1,000Hz
Sensitivity97dB 2.83V/1m
Voice Coil Diameter4"

Thiele-Small Parameters

Resonant Frequency (Fs)42Hz
DC Resistance (Re)3.5Ω
Voice Coil Inductance (Le)0.41mH
Mechanical Q (Qms)8
Electromagnetic Q (Qes)0.41
Total Q (Qts)0.4
Compliance Equivalent Volume (Vas)4.8ft³
BL Product (BL)22T·m
Diaphragm Mass Inc. Airload (Mms)210g
Maximum Linear Excursion (Xmax)10mm
Surface Area of Cone (Sd)189.88cm²

Materials of Construction

Cone MaterialTreated Paper
Surround MaterialCloth
Voice Coil Wire MaterialCopper
Voice Coil FormerFiberglass
Basket / Frame MaterialCast Aluminum
Magnet MaterialFerrite

Mounting Information

Overall Outside Diameter18.11"
Baffle Cutout Diameter16.61"
Depth7.87"
# Mounting Holes8

Parts Express Staff Recommended Enclosure Volume

Sealed Volume2.75ft³
Sealed F384.4Hz
Vented Volume6.25ft³
Vented F339.2Hz

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