600W subwoofer audio amplifier with 20 channel mixer and parametric

This picture below is about my setup subwoofer amplifier with 20 CH mixer and parametric. This amplifier use transformer 10 ampere to supply the power and 3 ampere transformer use to supply mixer and parametric.Elco capacitor that i use for the transformer 10 A, only 10000uF numbered 2. The circuit of amplifiers that i use which is 600 watt mono subwoofer amplifier . And booster amplifier only use 2 Sanken transistors. See picture subwoofer amplifier assemblies below :

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