The Thunder-KS4P I is a passive subwoofer with a 2x long excursion 18" neodymium magnet woofer and 3" voice coil. The Thunder-KS4P I features 2 SpeakON NL4 connectors, allowing the use of a 2-wire or 4-wire cable to input signals from an external powered system or amplifier and route the signal to other speakers.
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
rated power
2800W peak
Connector
2 x Speakon NL4
Nominal impedance
4 ohms
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
53.2 kg (117.3 lb)
Material
Polyurea Coated Birch Plywood
color
black/white/custom RAL
(1) With dedicated presets
(2) Calculates maximum SPL using a signal with a crest factor of 4 (12dB) measured at 1 m
(3) Includes 17 mm (0.7 in) removable rubber feet
(4) If in critical environments (swimming pool, beach, yacht..) permanent, permanent installation, we recommend further protection of the subwoofer. Contact K-array directly to discuss best conservation practices
Passive speakers require a dedicated preset loaded on the K-array amplifier.
New materials and designs are introduced into existing products without notice.