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
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Type:
Active subwoofer
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Transducers:
2 x 18″ woofer à aimant néodyme
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Frequency Response:
30 Hz – 150/450 Hz (–6 dB) crossover dependant
(1) -
Crossover:
DSP–controlled, Low Pass @ 150 Hz, preset dependant
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Max SPL:
141 dB
(2) -
Coverage:
Omni
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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
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Nominal Impedance:
4ohm subwoofer
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Controllers:
Wi–Fi dedicated Mobile APP
K–framework3 via wired Ethernet connection
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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
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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)
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Material:
Polyurea coated birch plywood
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Colors:
Black/White/Custom RAL
Regulations
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IP rating:
53
(4)
Amplifier
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Amp Module:
4–ch Class D
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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.
Downloads:
TECHDOCS:
Thunder–KS4I Datasheet–ESPThunder–KS4 I DatasheetWEB APP Quick Start GuideThunder KS User ManualAmp–to–speaker matching tableKS4 LayoutThunder–KS4 I BIMKS4 I DWG 3DCRESTRON HOME plug–inCRESTRON plug–inQ–SYS Plug–inDante Ready Activation GuideCE Declaration of ConformityosKar System Update 1.9.3KFramework3 v3.0.6 WindowsKFramework3 v3.0.6 Osx