Musway NX125.4

The Musway NX125.4 is an exceptionally compact and powerful 4-channel Class D amplifier that combines modern amplifier technology with high sound quality and versatile connectivity options. With an output power of up to 4 x 135 watts RMS at 2 ohms, it offers sufficient power reserves for demanding car audio systems despite its small size.

Thanks to efficient Class D technology, the NX125.4 achieves an efficiency of up to 86% and delivers dynamic, detailed music reproduction with extremely low distortion. The built-in high-pass and low-pass filters can be flexibly adjusted between 50 and 5,000 Hz for both channel pairs, allowing for precise adaptation to different speaker configurations.

For easy integration into existing vehicle systems, the amplifier features high-level inputs with Musway EPS® protection circuitry, an automatic power-on function, and RCA inputs via cable connectors. The high-quality aluminum housing, featuring an illuminated Musway logo behind a real glass window, rounds out the compact design.

Technical Specifications

General Characteristics

• Model: Musway NX125.4

• Amplifier Type: 4-channel amplifier

• Amplifier Technology: Class D

• Series: Musway NX Micro

• Number of channels: 4

• 2-ohm stable in stereo mode

• Bridge mode is possible at 4 ohms

• Efficiency: up to 86%

• Total Harmonic Distortion (THD): 0.008% at 5 watts

• Compatible with automatic start-stop systems

• EPS® (Error Protection System)

• Interference-Free Technology, EMC-Certified

• Illuminated Musway logo with a real glass window
  
  

RMS output power

• 4 x 80 watts RMS at 4 ohms

• 4 x 135 watts RMS at 2 ohms

• 2 x 270 watts RMS bridged at 4 ohms
  
  

Crossover Networks and Filters

• High-pass filter (HPF) Channel 1/2: 50–5,000 Hz

• Low-pass filter (LPF) Channel 1/2: 50–5,000 Hz

• High-pass filter (HPF) Channel 3/4: 50–5,000 Hz

• Low-pass filter (LPF) Channel 3/4: 50–5,000 Hz

• Separately adjustable crossovers for both channel pairs

• Input Channel Switching: CH2/CH4
  
  

Connections and Features

• RCA low-level inputs via connection cables

• High-level inputs for factory-installed radio systems

• EPS® Protection Circuit for High-Level Inputs

• Automatic Power-On Function (Auto Turn-On)

• Connectivity for four speaker channels

• Bridgeable output channels for more powerful speakers or subwoofers
  
  

Dimensions

• Width: 89 mm

• Height: 41 mm

• Length: 148 mm

• Compact design for space-saving installation
  
  

What's Included

• 1 Musway NX125.4 4-Channel Class D Amplifier

• Connection cables and other accessories

• User Manual