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.
Specifications
General
-
Type:
Active subwoofer
-
Transducers:
2 x 18" neodymium magnet woofer
-
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
Mains
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.
CONTROL 4
Integrating K-array's latest electronics with any Control4 system has become easy.
Crestron Home
Make K-array ultra-sleek and unique products get along with your Crestron Home Control System.
Crestron
The plug-in that gives your Crestron Electronics full control on K-array amps is finally out there!
AMX by Harman
K-array's latest electronics can be easily controlled by AMX modules as well now.
Dante Ready
K-array's Dante Ready, a licensing program by Audinate.
Download the Dante Controller for free!
Downloads
Thunder-KS4I Datasheet-ESP
Thunder-KS4 I Datasheet
WEB APP Quick Start Guide
Thunder KS User Manual
Amp-to-speaker matching table
KS4 Layout
Thunder-KS4 I BIM
KS4 I DWG 3D
CRESTRON HOME plug-in
CRESTRON plug-in
Q-SYS Plug-in
Rev 1.0.0
Dante Ready Activation Guide
Ver 0.2
CE Declaration of Conformity
osKar System Update 1.9.3
KFramework3 v3.0.6 Windows
Ver. 3.0.6
KFramework3 v3.0.6 Osx
Ver. 3.0.6
Related accessories
Case Studies
Tenax Nightclub
Tenax, a beacon of the underground club scene in Florence, recently underwent a sonic upgrade with the installation of a...
View Details53rd International Eucharistic Congress 2024
Quito is the host city for the 53rd International Eucharistic Congress 2024, which aims to guide the Catholic Church's m...
View Details