4x B&C 18TBX100-4 4-Ohm 18" Subwoofer 2400 Watts Low Frequency 35 - 1000 Hz SUB.

B&C 18TBX100-4 4-Ohm 18" 2400 Watts Low Frequency 35-1,000 Hz Subwoofer

Overview

The industry-standard B&C Speakers 18TBX100-4 features a 1'' long/4'' diameter copper wire voice coil with high thermal capability, and a ventilated magnet assembly, both of which contribute to low power compression.

A very low distortion figure is obtained using a double spider design and dual demodulation rings in the magnetic path.

The 18TBX100-4 is fortified by a proprietary water-proof cone treatment that facilitates safe use in adverse climatic conditions.

Highlights

• 1,200 watts RMS power handling
• 4" copper wire voice coil wound inside-outside on fiberglass former
• Double spider suspension system maintains linearity

Specifications

Resonant frequency

• fS

• 30

• Hz

Electrical Q

• QES

• 0.33

Mechanical Q

• QMS

• 7.00

Total Q factor

• QTS

• 0.31

Suspension equivalent air volume

• VAS

• 256

• litres

DC resistance

• RE

• 3.7

• Ω

Minimum impedance

• Zmin

• 4.4

• Ω

Voice coil inductance

• LE

• 1.73

• mH

Force factor

• B·l

• 22

• T·m

Suspension mechanical resistance

• RMS

• 6.2

• N·s/m

Suspension mechanical compliance

• CMS

• 123

• µm/N

Moving mass

• MMD

• 200.8

• g

Moving mass (including airload)

• MMS

• 230

• g

Surface of the diaphragm

• SD

• 1210

• cm²

Effective diaphragm diameter

• Ø

• 39.3

• cm

Maximum linear excursion

• Xmax

• ± 9

• mm

Displacement volume at Xmax

• VD

• 1089

• cm³

Efficiency

• η₀

• 1.96

• %

Efficiency bandwidth product

• EBP

• 90