: Unlike standard power amps, the RX series often features a built-in crossover , allowing it to be switched between subwoofer (low-pass) and mid-high (high-pass) modes without external gear. Technical Resources
Technicians often refer to the circuit diagram to address common issues like "shorting" or thermal shutdown. nx audio rx 4000 circuit diagram
If you have distorted sound on one channel only, use the schematic to compare the problematic channel to a working one. Follow the signal from the RCA input jack through the coupling capacitor (typically 2.2µF/50V), into the op-amp, and into the power section. : Unlike standard power amps, the RX series
This is a helpful, practical look at the (likely a 4-channel, 4000W-max class AB or class D amplifier, common in pro-audio/budget car audio). : Unlike standard power amps