GA43 4-ch 750w Power Amplifiers with DSP


18” Sub + 12” Slim Array Element (Active)

Heavy duty 18” powered subwoofer combined with GH12, our 12” passive coaxial satellite featuring K-array™ SAT® (Slim Array Technology).

It can drive up to 3 GP1812 passive system in a stereo configuration. It features Powersoft™ DSP and power module with ethernet remote control and Armonia™ control software.

Designed for small to medium high performance outdoor/indoor applications both for rental and permanent installations for touring, live bands, auditoriums, pubs and clubs. 

High performance to size/weight ratio featuring easy and fast setup possibility.

User Tip: optimize the cost and combine the system with the passive model whether it is for stereo configurations or if you prefer to extend the cluster.

Tech specs


Power Handling: 750W subwoofer + 200W satellite
Peak Power: 1500W subwoofer + 400W satellite
Impedance: 8Ω subwoofer + 32Ω satellite
Frequency Range: 45Hz – 20KHz (-6dB average)
Maximum SPL(1): 129dB (peak)
Continuos SPL: 117 dB
Coverage: V.30° - H.90°


Subwoofer: 18” ferrite magnet
Mid High Frequency: 12” coaxial with 1” compression driver ferrite magnet


Analog balanced I: 2 x Combo jack-XLR female line
Analog power O: 1 x Speakon to drive a GP1812 Passive System in a stereo configuration


Volume potentiometer | RJ45 connector | DSP can be remotely controlled via an Ethernet connection through Powersoft ArmoniaPlus Software


Type: 4-channel Class-D audio amplifier
Power: 4 x 1500W @4ohm
AC input: 100-240V AC @50-60Hz
Max power consumption: 500W Rated Load (1/8 Max Power)
Protections: Thermal Protections (Power limiting - Thermal Shutdown), Short-circuit/overload output protections, stationary high frequency protection, peak limiter, RMS limiter, frequency dependent RMS limiter, Clip limiter




Width: 545mm (21,46in)
Height: 610mm (24,02in)
Depth: 600mm (23,6in)
Weight: 35,4kg (76,37lbs)
Material: birch plywood
Rating: IP41


Width: 327mm (12,87in)
Height: 334mm (13,15in)
Depth: 198mm (7,79in)
Weight: 13,8kg (30,43lbs)
Material: stainless steel
Rating: IP54

G-POLE: Adjustable satellite stand with M20 screw bottom (included)
K-SPKCABLE2: 2m/6.6ft Speakon cable (included)


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