Actiway, established in 1997, is the national new high-tech enterprise. We are a professional manufacturer of car and subwoofer amplifier since 1997, marine amplifier since 2004, powersports audio since 2000. The earliest and biggest manufacturer of car and marine amplifiers with the strongest R&D among all car amplifier manufacturers in China.
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Description
Input mode switch (2CH/4CH)
Variable input gain control
Soft delayed remote turn-on circuitry
Simultaneous mono / stereo operation (2CH/4CH)
Variable subsonic filter (1CH)
Die cast/barrier strip terminals & gold/nickel palted RCA jacks
High/low pass electronic X-overs with variable frequency
Variable bass level with remote controller (1CH)
Short circuit / thermal / overload / DC offset protection
High/low level inputs
Fully 1Ω or 2Ω stable operation
Bridgeable (2CH/4CH)
Power / protect LED indicators
Specifications AMA-2120 AMA-2160 AMA-2200 AMA-4070
Max power @ 1Ω / / / /
Max power @ 2Ω 180W x2  240W x2  300W x2  4×100W
Max power @ 4Ω 120W x2  160W x2  200W x2  4×70W
RMS power @ 1Ω / / / /
RMS power @ 2Ω 90W x2  120W x2  150W x2  4×50W
RMS power @ 4Ω 60W x2  80W x2  100W x2  4×35W
RMS bridged power @ 2Ω / / / /
RMS bridged power @ 4Ω 180W x1 240W x1 180W x1 2×100W
T.H.D <0.05% <0.05% <0.05% <0.05%
S/N (A weighted) >90dB >90dB >90dB >90dB
Channel separation >50dB >50dB >50dB >50dB
Frequency response (±3dB) 10Hz-45KHz 10Hz-45KHz 10Hz-45KHz 10Hz-45KHz
Low pass crossover frequency 30Hz-250Hz  30Hz-250Hz  30Hz-250Hz  30Hz-250Hz
High pass crossover frequency 60Hz-1.2KHz 60Hz-1.2KHz 60Hz-1.2KHz 60Hz-1.2KHz
Remote controller / / / /
Bass control 0-12dB  0-12dB  0-12dB  0-12dB 
Bass EQ frequency 45Hz 45Hz 45Hz 45Hz
Crossover slope 6dB 6dB 6dB 6dB
Variable phase shift / / / /
Subsonic filter / / / /
High/low level input sensitivity 0.2-10V 0.2-10V 0.2-10V 0.2-10V
High/low level input impedance 100Ω / 20KΩ 100Ω / 20KΩ 100Ω / 20KΩ 100Ω / 20KΩ
Line output yes yes yes yes
Die cast  terminal yes yes yes yes
FR4 PCB / / / /
Fuse rating 30A × 1 20A × 2 25A × 2 20A × 2
Heatsink size (L×W×H)(mm) 230x×228×58 260x×228×58 300x×228×58 260x×228×58
Heatsink size (L×W×H)(inch) 9.1×9.0×2.3 2.4×9.0×2.3 11.8×9.0×2.3 2.4×9.0×2.3
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Specifications AMA-4120 AMA-4160 AMA-4250 AMA-4300
Max power @ 1Ω / / / /
Max power @ 2Ω 4×160W 4×220W 4x400W 4x450W
Max power @ 4Ω 4×120W 4×160W 4x250W 4x300W
RMS power @ 1Ω / / / /
RMS power @ 2Ω 4×80W 4×110W 4x200W 4x225W
RMS power @ 4Ω 4×60W 4×80W 4x125W 4x150W
RMS bridged power @ 2Ω / / / /
RMS bridged power @ 4Ω 2×120W 2×220W 2x400W 2x450W
T.H.D <0.05% <0.05% <0.05% <0.05%
S/N (A weighted) >90dB >90dB >90dB >90dB 
Channel separation >50dB >50dB >50dB >50dB
Frequency response (±3dB) 10Hz-45KHz 10Hz-45KHz 10-45KHZ 10Hz-45KHz
Low pass crossover frequency 30Hz-250Hz 30Hz-250Hz 30-250HZ 30Hz-250Hz 
High pass crossover frequency 60Hz-1.2KHz 60Hz-1.2KHz 60-1.2KHZ 60-1.2KHZ
Remote controller / / / Level
Bass control 0-12dB  0-12dB  0-12dB  0-12dB 
Bass EQ frequency 45Hz 45Hz 45Hz 45Hz
Crossover slope 6dB 6dB 12dB 12dB
Variable phase shift / / / /
Subsonic filter / / / /
High/low level input sensitivity 0.2-10V 0.2-10V 0.2-10V 0.2V-6V (Low level)
High/low level input impedance 100Ω / 20KΩ 100Ω / 20KΩ 100Ω/20KΩ 20KΩ (Low level)
Line output yes yes yes yes
Die cast  terminal yes yes yes yes
FR4 PCB / / yes yes
Fuse rating 25A × 2 35A × 2 35A x 3 35A × 3
Heatsink size (L×W×H)(mm) 300x×228×58 340X×228×58 450×228×58 500×228×58
Heatsink size (L×W×H)(inch) 11.8×9.0×2.3 13.4×9.0×2.3 17.7×9.0×2.3 19.7×9.0×2.3
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