The Thunder-KS4P I is a passive subwoofer featuring 2x long excursion 18” neodimium magnet woofer with 3” voice coil. The Thunder-KS4P I features 2x SpeakON NL4 connectors that allow to input the signals from external active systems or amplifiers, with either a 2-wire or a 4-wire cable, as well as route the signal to other loudspeakers.
Specifications
General
-
Type:
Passive cardioid subwoofer
-
Transducers:
4x 12'' ferrite magnet woofer
(3x front, 1x rear) -
Frequency Response:
35 Hz - 150 Hz (-6 dB)
(1) -
Crossover:
Mono-Amp mode: internal crossover and filters enabled, managed by a dedicated preset.
Bi-Amp mode: internal crossover/filters bypassed by switch; processing managed via external DSP (dedicated preset required), Low Pass @ 150 Hz. CH1 = Front / CH2 = Rear.
(2) -
Max SPL:
138 dB (peak)
(3) -
Coverage:
Cardioid pattern / rear attenuation
Mono-Amp mode: rear attenuation -12 dB (typ.).
Bi-Amp mode: rear attenuation up to -20 dB (max.)
(4) -
Rated Power:
Mono-amp: 2500W
Bi-amp: 2100W + 700W Bi amp (CH1 = Front / CH2 = Rear) -
Connectors:
2xSpeakOn NL4 1+1-/ 2+2-
(signal); 1+1-/ 2+2- (link)
-
Nominal Impedance:
Mono-Amp: 4 Ω
Bi-Amp: 4 Ω + 16 Ω (CH1 = Front / CH2 = Rear)
Handling and Finishes
-
Dimensions (W x H x D):
370x 1104x 785 mm
(13,38x 31,49x 8,46 in)(5) -
Weight:
62,4 kg (137,58 lbs)
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Material:
Polyurea coated birch plywood
-
Colors:
Black
Regulations
-
IP Rating:
IP54
- (1) With dedicated preset.
- (2) preset dependant
- (3) Maximum SPL is calculated using a signal with crest factor 4 (12dB) measured at 8 m then scaled at 1 m.
- (4) Mono-Amp mode: rear attenuation -12 dB (typ.). Bi-Amp mode: rear attenuation up to -20 dB (max.)
- (5) Vibration-dumping feet 0,15mm (0,16in)
Passive loudspeakers requires dedicated preset loaded on board of K-array amplifiers.
New materials and design are introduced into existing products without previous notice.
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KSCARDIO412P DATASHEET
Preliminary V.0.1