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KS28 Active Reference High Power Subwoofer, Dual 18"
Max SPL 143 dB
Low frequency limit 25 Hz
Transducers LF: 2 x 18"
Weight 79 kg / 174 lb
Directivity standard or cardioid configurations
POINT SOURCE
COAXIAL
L-VENTS
ELLIPSOID WAVEGUIDE
标题
Amplifier
The following specifications of power amplifiers can be used to drive AL90.
Recommended products
Electroacoustic specs
Flyable subwoofer 2 x 18'' amplified by LA12X
Low frequency limit (-10 dB):25Hz ([KS28_100])
Maximum SPL1 :143 dB ([KS28_100])
Nominal directivity (-6 dB) :Standard or cardioid
Transducers:2 × 18″ neodymium cone drivers
Acoustical load :Bass-reflex, L-Vents
Nominal impedance :4 Ω
Physical specs
Connectors:1 × 4 point speakON
Rigging and handling :Flush-fitting 2-point rigging system 6 ergonomic handles 2 ground runners 8 side runners
Weight (net) :79 kg / 174 lb
Cabinet :Premium grade Baltic beech and
birch plywood
Front :Coated steel grill acoustically neutral 3D fabric
Rigging components :High grade steel
Finish :Dark grey brown Pantone 426 C
IP :IP55
Maximum output power (EIAJ test standard): 2*1500W/8Ω,
2*3000W/4Ω; bridged 6000W/2Ω
Working voltage: AC 100-240V±10%, 50-60Hz
Gain: 32dB
Input sensitivity: 2.2V/+9dBu
Frequency response: 20Hz-20kHz (±0.5dB)@1W, 8Ω
Signal-to-noise ratio: >115dB (20Hz-20kHz, A weighted)
Crosstalk isolation:-71dB@1kHz
THD＋N: <0.09% from 0.1W to half power (typically <0.05%)
DIM100: < 0.09% from 0.1W to half power (typically
<0.07%)
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