KS4 l
describe
The Thunder-KS4 l is a compact active subwoofer with 2x18" cone drivers and powerful 4x 2500W @ 4Ω audio amplifier modules with built-in DSP. The audio power output connector allows the Thunder subwoofer to drive a variety of K-array passives Speakers: Compatible with midrange speakers and other passive subwoofers, the self-powered Thunder subwoofer with DSP is designed to be the heart of the K-array sound reinforcement system.
Specification
| general | |
| type | passive subwoofer |
| sensor | 2 x 18" neodymium magnet woofers |
| Frequency response | 30 Hz – 150/450 Hz (-6 dB) crossover dependent(1) |
| maximum sound pressure level | 141 dB (peak)(2) |
| coverage | all-round |
| controller | Wi-Fi dedicated mobile APP K-framework3 is connected via wired Ethernet |
| Connector | Line In 2x XLR-F Analog / AES3 Line Out 2x XLR-M Link Analog / AES3 Speaker Out 2x SpeakON NL4 Mains powerCON TRUE1 TOP Network and Data 1x RJ45 4x USB-A |
| Built-in DSP | Input Gain, Routing Matrix, Delay, Fully Parametric IIR Filters (Peaking, Shelving, Hi/Lo pass, Hi/Lo Butterworth), Onboard Presets, Remote Monitoring |
| cross | DSP control, low pass @ 150 Hz, depending on preset |
| Treatments and Finishes | |
| Dimensions (WxHxD) | 1106 x 500 x 580 mm (43.5 x 19.7 x 22.8 in) (3) |
| weight | 60 kg (132.3 lbs) |
| Material | Polyurea Coated Birch Plywood |
| color | Black, white, custom RAL |
amplifier | |
| Amplifier module | 4 Channel Class D |
| Output Power | 4 x 2500W @ 4ohm (5) |
| energy consumption | 600 VA @ 8 Ω load, pink noise, 1/8 rated power |
(1) With dedicated preset
(2) Calculates maximum SPL using a signal with a crest factor of 4 (12dB) measured at 1 m.
(3) Includes 17mm (0.7") removable rubber feet
(4) For permanent, permanent installation in critical environments (pool, beach, yacht..), we recommend further protection of the subwoofer. Contact K-array directly to discuss best conservation practices.
(5) CTA-2006 standard single channel driver
new materials and designs are introduced into existing products without notice.