GA43 4-ch 750w Power Amplifiers with DSP


2x18" Subwoofer + 4x12" Slim Array System (Passive)

GPX is our top of the line high performance passive system and comprises of a 2x18” subwoofer combined with GH412, our 4x12” coaxial slim array with K-array™ SAT® (Slim Array Technology), PAT® (Pure Array Technology) and a stainless steel cabinet. 

This system can be driven by GPXA active system in a stereo configuration or by GA46 power amplifiers.

Thanks to its extreme performance and the compact format of the array, this system works in a stack configuration, with the array on top of the subwoofer. It is also possible to fly GH412 with our GH-FLY flybar accessory, or place it on the ground with our GH-BASE accessory.

Perfect for high SPL outdoor/indoor applications in large venues both for rental and permanent installations for touring, auditoriums, stadia, clubs, theme parks.

User Tip: optimize the cost and combine the system with the active model whether it is for stereo configurations or if need to extend the satellite cluster to form an array.

Tech specs


Power Handling: 1500W subwoofer + 750W satellite 
Peak Power: 3000W subwoofer + 1500W satellite 
Impedance: 4Ω subwoofer + 8Ω satellite 
Frequency Range: 30 Hz - 20 KHz (-6 dB average) 
Maximum SPL(1): 140dB (peak) 
Continuos SPL: 128dB 
Coverage: V.30° - H.90° 


Subwoofer: 2x18” ferrite magnet 

Mid High Frequency: 4x12” coaxial with 1” compression driver ferrite magnet






Width: 1035mm (40,75in) 
Height: 614mm (24,17in) 
Depth: 600mm (23,6in) 
Weight: 58kg (127,88lbs) 
Material: birch plywood 
Rating: IP43


Width: 327mm (12,87in) 
Height: 1290mm (50,79in) 
Depth: 198mm (7,79in) 
Weight: 55,2kg (121,69lbs) 
Material: stainless steel 
Rating: IP54

GPINM20: M20 pin (included)
K-SPKCABLE15: 15m/49ft Speakon cable (included)
K-SPKCABLE2: 2m/6,6ft Speakon sub to satellite cable (included)
GH-BASE: Floor stacking hardware for GH12/GH412 (optional)
GH-JOINT: Adjustable stacking hardware for GH12/GH412 (optional)


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