Thunder-KS4 I

Compact, multi–tâches 2×18″ subwoofer auto–alimenté

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Introduction

The Thunder–KS4 I is a compact active subwoofer featuring a 2x18” cone drivers and a powerful 4x 2500W @ 4Ω audio amplifier module with built–in DSP. The audio power output connectors allow the Thunder subwoofers to drive a wide range of K–array passive loudspeakers. Compatible with midrange loudspeaker and other passive subwoofers, the self powered Thunder subwoofers with DSP are designed to be the core devices in K–array sound reinforcement systems.

Technical sheet

Specifications

General

  • Type:

    Active subwoofer

  • Transducers:

    2 x 18″ woofer à aimant néodyme

  • Frequency Response:

    30 Hz – 150/450 Hz (–6 dB) crossover dependant

    (1)
  • Crossover:

    DSP–controlled, Low Pass @ 150 Hz, preset dependant

  • Max SPL:

    141 dB

    (2)
  • Coverage:

    Omni

  • Connectors:

    Line Input

    2x XLR–F analog / AES3

    Line Output

    2x XLR–M Link analog / AES3

    Speaker Output

    2x SpeakON NL4

    Power

    powerCON TRUE1 TOP

    Networking and Data

    1x RJ45

    4x USB–A

  • Nominal Impedance:

    4ohm subwoofer

  • Controllers:

    Wi–Fi dedicated Mobile APP

    K–framework3 via wired Ethernet connection

  • Built–in DSP:

    Input gain, routing matrix, delay, full parametric IIR filters (Peaking, Shelving, Hi/ Lo pass, Hi/Lo Butterworth), Onboard preset, Remote monitoring

Handling and Finishes

  • Dimensions (W x H x D):

    1106 x 500 x 580 mm

    (43.5 x 19.7 x 22.8 in)

    (3)
  • Weight:

    60 kg (132.3 lb)

  • Material:

    Polyurea coated birch plywood

  • Colors:

    Black/White/Custom RAL

Regulations

  • IP rating:

    53

    (4)

Amplifier

  • Amp Module:

    4–ch Class D

  • Output Power:

    4 x 2500W @ 4ohm

    (5)
  • Power Consumption:

    600 VA @ 8 Ω load, Pink noise, 1/8 rated power

  • (1) With dedicated preset
  • (2) Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 1 m.
  • (3) Included 17 mm (0.7 in) removable rubber feet
  • (4) In case of permament, long lasting installation in critical environments (swimming pools, beaches, yachts..), we recommend to further protect the subwoofer. Contact K–array directly to discuss best protection practices.
  • (5) CTA–2006 Standard single channel driven
  • New materials and design are introduced into existing products without previous notice.

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