View 2 of (parts) (not functional) Facmogu S-299 4.1CH Bluetooth Power Amplifier with Active Subwoofer Output (NOT Passive Subwoofer), Max 800W RMS 40Wx4 Subwoofer Amplifier Hi-Fi Integrated Mini Speaker Amp Audio Sub Bass Amp

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View 1 of (parts) (not functional) Facmogu S-299 4.1CH Bluetooth Power Amplifier with Active Subwoofer Output (NOT Passive Subwoofer), Max 800W RMS 40Wx4 Subwoofer Amplifier Hi-Fi Integrated Mini Speaker Amp Audio Sub Bass AmpView 2 of (parts) (not functional) Facmogu S-299 4.1CH Bluetooth Power Amplifier with Active Subwoofer Output (NOT Passive Subwoofer), Max 800W RMS 40Wx4 Subwoofer Amplifier Hi-Fi Integrated Mini Speaker Amp Audio Sub Bass Amp