Nx: Audio Rx 4000 Circuit Diagram New!

Measure the DC voltage before the output relay. If you find a high DC voltage (positive or negative rail voltage) on the output line, one or more output transistors have likely shorted.

According to NX Audio product specs , the RX 4000 is engineered for high performance, featuring:

This section boosts the low-voltage input signal to a swing level capable of driving the high-power output transistors.

[ Input Stage / Limiter ] ---> [ Voltage Amplifier Stage (VAS) ] ---> [ Class H Rail Switch ] | | v v [ Driver / Output Stage ] <-----------------+ | v [ Protection & Speaker Relays ] 1. Input and Pre-Amplifier Stage nx audio rx 4000 circuit diagram

Here is what a verified circuit diagram allows you to do:

Signal from Pot -> Differential Input Pair (Transistors) -> Voltage Amplifier Transistor -> Current Source

Disclaimer: Always work on amplifiers with the power unplugged. High-voltage capacitors can hold a charge even when the unit is turned off. Pro Tip for Troubleshooting Measure the DC voltage before the output relay

To help narrow down the specific schematic section or repair strategy you need, please let me know:

It delivers up to 1550W + 1550W RMS at 2 Ohms per channel.

: Distortion at high volumes or failure to reach full rated power. [ Input Stage / Limiter ] ---> [

A complex part of the rx 4000 diagram is the protection logic. You will find:

While a full proprietary engineering schematic is typically restricted to authorized service centers, technical documentation highlights the following internal components and design logic:

: Front-panel indicators for Peak, Level, and Signal status. Technical Specifications Specification Output Power (2Ω) 1550W + 1550W RMS Output Power (4Ω) 1150W + 1150W RMS Bridge Mono (8Ω) 2000W - 2400W Damping Factor S/N Ratio Frequency Response 20Hz – 20kHz Operating Modes Stereo, Bridge, Parallel

The power supply section of the NX Audio RX 4000 circuit diagram is responsible for providing a stable and regulated DC power supply to the amplifier's circuitry. The power supply consists of: