Musway NX125.4 Micro 4 Channel Amplifier

Musway NX125.4 Micro 4 Channel Amplifier

SKU:MUS-NX125.4

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Musway NX125.4 Micro 4 Channel Amplifier

Compact Power. Precision Control. Pure Sound.

The NX125.4 is a high-efficiency 4-channel digital Class D amplifier designed for modern car audio systems that demand strong output, clean sound, and flexible tuning all in a compact, installer-friendly size.

Whether you’re upgrading factory speakers, running high-performance components, or bridging channels for more power, the NX125.4 delivers smooth, distortion-free performance with full system control.

Features

  • Powerful 4-channel output in a compact body
  • Clean, dynamic sound with audiophile-grade clarity
  • Flexible crossover tuning
  • OEM-friendly integration
  • Reliable performance for daily drivers and custom builds

Specifications

 

Model

NX125.4

Channels

4

Circuit

Digital Class D

Power RMS @ 13.4V (≤1% THD+N)

 

4 Ohm

4 x 80 W

2 Ohm

4 x 135 W

4 Ohm Bridged

2 x 270 W

Power RMS (DHDR)

2 Ohms per channel

170 W

Frequency Range

10 – 40,000 Hz (-1 dB)

Signal-to-noise Ratio

> 99 dB

THD+N @ 5 W

< 0.02%

Input Sensitivity

425 mV – 8.0 V

Filter Section CH1/CH2

Low Pass or High Pass Filter (50 – 5000 Hz)

Filter Section CH3/CH4

Low Pass or High Pass Filter (50 – 5000 Hz)

Operating Voltage

8.5 – 16.5 V (max. 5 sec. down to 7 V)

Start-stop Capability

Yes

High Level Input with EPS (included connectors)

Yes (Type D)

Auto Turn-on (High Level Input)

Yes

External Fuse

50 A

Dimensions

 

Width

89 mm

Height

41 mm

Length

148 mm

(MUS-NX125.4)