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  • LF Drivers

    18RS115

    18 inch

    Subwoofer

    NEW

    PRELIMINARY DATA

    The new 18RS115 subwoofer uses a four layer aluminum voice coil, as used in our popular DS Series. The result is more energy in the gap, less heat, higher sensitivity, higher power handling, lower distortion and better overall performance. The new RS Series takes this to the next level, incorporating a far higher flux motor, combined with an extra long 54mm x 4.5 inch diameter (116mm) Copper Clad Aluminum Wire voice coil. The 18RS115 strikes an excellent balance between power handling and sensitivity, ultimately outperforming many power hungry alternatives with significantly larger diameter voice coils. With a 2000watt AES power rating, 97.4 dB sensitivity, and over 23.5mm of Xmax, these high-excursion transducers represent an incremental advancement over comparable B&C woofers in power density, efficiency, and displacement capability.

    Features

    • 4000 W continuous program power capacity
    • 116 mm (4.5 in) four layer aluminum voice coil
    • 35 - 1000 Hz response
    • 97.4 dB sensitivity
    • Excursion optimized lead wires (woven through spider)
    • Double silicone spider with optimized compliance
    • Ventilated voice coil gap for reduced power compression
    • Aluminium demodulating ring for very low distortion

    Specifications

    Nominal Diameter

    460 mm (18 in)

    Nominal Impedance

    8 Ω

    Minimum Impedance

    6.6 Ω

    Nominal Power Handling

    2000 W

    Continuous Power Handling

    4000 W

    Sensitivity

    97.4 dB

    Frequency Range

    35 Hz - 1000 Hz

    Voice Coil Diameter

    116 mm (4.5 in)

    Winding Material

    Aluminium

    Former Material

    Glass Fibre

    Winding Depth

    54 mm (2.13 in)

    Magnetic Gap Depth

    14 mm (0.55 in)

    Flux Density

    0.9 T

    Woofer Cone Treatment

    TWP Waterproof Both Sides

    Parameters

    Fs

    33 Hz

    Re

    4.5 Ω

    Qes

    0.23

    Qms

    9

    Qts

    0.22

    Vas

    125 dm³ (4.41 ft³)

    Sd

    1210 cm² (187.55 in²)

    η0

    1.95 %

    Xmax

    23.5 mm

    Xvar

    19 mm

    Mms

    391 g

    Bl

    40 Tm

    Le

    5.1 mH

    EBP

    143 Hz

    Design

    Surround Shape

    Triple Roll

    Cone Shape

    Straight

    Magnet Material

    Neodymium Inside Slug

    Spider

    Double Silicone

    Pole Design

    T-Pole

    Woofer Cone Treatment

    TWP Waterproof Both Sides

    Mounting and Shipping Info

    Overall Diameter

    460 mm (18 in)

    Bolt Circle Diameter

    443 mm (17.44 in)

    Baffle Cutout Diameter

    425 mm (16.73 in)

    Depth

    261 mm (10.28 in)

    Flange and Gasket Thickness

    16 mm (0.63 in)

    Air Volume Occupied by Driver

    10 dm³ (0.35 ft³)

    Net Weight

    15.4 kg (33.95 lb)