No circuit has been added yet. A 12 V, 20 W amplifier is feasible using a Class-D bridge amplifier, but I need the number of 5×5 speakers, each speaker’s impedance (4 Ω or 8 Ω), and mono vs stereo before designing it.

Project execution is currently unavailable because the account has no ACUs. Once available, I can create the complete schematic with input, amplifier, power filtering, speaker outputs, and protection.