4 Channel Full Range Class D Motorcycle Amplifier Fixed Input Sensitivity and Crossover

Compact size design with TE waterproof connector 

High-efficiency full range class D operation

Waterproof IPX4 to IPX5

Frequency range: 20Hz – 20KHz 

2 Ohm working stable

Input sensitivity: 2V

Signal sensing and 12V remote out

Short, thermal and overload protection

Product Description

NSTE-4020 is a compact, stable, four-channel, full-range Class D amplifier designed for in-vehicle and outdoor applications, particularly for space-constrained users who demand high-quality sound and durability. Its compact dimensions of just 138mm × 96mm × 49mm make it easy to conceal and easily install, while also offering a wide range of placement options for motorcycles, electric vehicles, ATVs, and boats. Operating at 14.4V, each channel supports stable operation into a 2-ohm load, with a single channel delivering 20W RMS power with less than 1% distortion, ensuring clear and smooth sound quality. The NSTE-4020 features a fixed input sensitivity of 2V, compatible with standard audio sources, simplifying setup and lowering the barrier to entry. Dedicated TE waterproof connectors effectively prevent moisture and dust from intruding, enhancing system reliability in humid, dusty, or even lightly splashed environments. It is ideal for motorcycle audio upgrades, open-back vehicle audio systems, and other applications requiring high weather resistance.