Hifonics ZG-600.4 Class A/B 600 Watts MAX ZEUS Gamma 4 CH Car Audio Amplifier. Heat Sink: Aluminum Hifonics Heat sink for superior heat dissipation. 1x Hifonics ZG-600.4 Amplifier. LED System Protection Circuitry Diagnostics: Monitor overload and speaker short protection with illuminated indicators on the amplifier end panel.
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