4-Channel Class D Amplifier 4 × 100 | 4 Ohm
Product Overview
Overview
The NX175.4 is a high-performance 4-channel digital Class D amplifier built for car audio systems that demand more output, better control, and clean sound in a compact footprint. With increased RMS power over the NX125.4, this amplifier is ideal for driving high-performance speakers, components, or bridged setups while maintaining excellent efficiency and low distortion.
It features advanced crossover controls, OEM-friendly high-level inputs, auto turn-on, and start-stop compatibility — making it a perfect choice for both factory system upgrades and full custom builds.
Description
Designed with modern vehicles in mind, the NX175.4 delivers powerful, stable performance with crystal-clear sound quality. Its wide frequency response and ultra-low distortion ensure accurate music reproduction, while flexible filtering options allow you to fine-tune your system exactly the way you want.
Thanks to its compact size, EPS high-level input, and auto turn-on function, installation is fast and clean — even in vehicles without a traditional remote wire.
Product Specifications
Power RMS @ 13.4 V (≤1% THD+N)
Watt @ 4 Ohm: 4 × 100
Watt @ 2 Ohm: 4 × 175
Watt @ 4 Ohm bridged: 2 × 350
Power RMS (DHR)*
Watts @ 2 Ohms per channel: 200
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 Filter or High Pass Filter: 50 – 5000 Hz
Filter Section CH3/CH4
Low Pass Filter 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: Type D
Auto Turn-on: Yes
Bass Level Remote Controller CH3/CH4: NA
Fuse (external): 60 A
Dimensions
Width: 89 mm
Height: 41 mm
Length: 148 mm
