4 Channel Class D Amplifier

NSAP-4200 4-channel class D amplifier delivers 4 x 150W RMS power into a 4-ohm load, increasing to 4 x 200W RMS into a 2-ohm load. Each channel provides ample driving power, easily meeting the output demands of mid-range and high-end speakers. Its compact design yet powerful performance makes it suitable for flexible installation in a variety of vehicle models. The NSAP-4200 features a 2-channel/4-channel input mode switch, accommodating various audio source configurations and facilitating easy integration with both the original head unit and external audio equipment. Users can precisely control the frequency band based on speaker type, enhancing overall system balance. Its adjustable crossover range from 50Hz to 200Hz accommodates a wide range of audio configurations, ensuring detailed rendering from midrange to high-frequency performance. The product features a signal-sensing function, automatically powering the system upon detecting an input signal, eliminating manual operation and enhancing user convenience. Built-in short-circuit, overheating, and overload protection circuits further ensure safe system operation and product life.

NSLM-4200 is a high-performance, four-channel, full-band Class D power amplifier designed for in-vehicle and outdoor audio systems requiring high sound quality and high power output in harsh environments. It combines robust power performance with excellent frequency response, robust protection, and intelligent startup control. Its four-channel design allows for flexible front and rear speaker configurations to create a more immersive sound experience, compatible with a variety of vehicle or device audio systems. It boasts IPX4 waterproof performance and utilizes high-quality TE waterproof connectors to effectively prevent moisture and dust intrusion, making it suitable for stable operation in outdoor environments such as motorcycles, boats, and ATVs/UTVs. A built-in triple protection system against short circuits, overloads, and overheating ensures stable and safe operation in extreme environments, reducing the risk of system failure.

NSM-4020 4-channel mini-size class D amplifier delivers 20W RMS power per channel into a 4-ohm load. Leveraging efficient Class D amplification technology, the NSM-4020 not only delivers stable power performance but also effectively reduces energy consumption and heat generation, extending device life and reliability. It supports high-level and low-level input switching, offering excellent compatibility, making it easy to connect to both the original vehicle audio system and external audio sources. Equipped with adjustable high-pass filters (HPF) and low-pass filters (LPF), users can freely adjust the audio frequency range to suit different speaker types and listening preferences, achieving precise crossover and sound optimization, enhancing overall audio performance. A wide input sensitivity range (200mV to 9V) facilitates matching with various signal sources to meet the needs of different vehicle audio systems. A signal-sensing auto-start function ensures hands-free power-up, enhancing user convenience.

NSLM-4200-DSP is a high-performance, four-channel, full-range Class D power amplifier designed for users seeking superior sound quality and flexible tuning. Not only does it offer powerful power output and a wide frequency response, but it also features an advanced built-in digital signal processor (DSP), facilitating professional tuning and personalized sound optimization. It is an ideal choice for modern in-car and multi-channel audio systems. Its four-channel design allows for flexible front and rear speaker configurations, creating an immersive, surround-sounding sound environment to meet the needs of diverse musical styles. It accurately reproduces every detail, from deep bass to crystal-clear highs, ensuring authentic and powerful musical performance. Whether pop, rock, or classical, it delivers flawless performance. The built-in digital signal processor (DSP) provides powerful support for professional tuning. Users and engineers can use the DSP to precisely adjust frequency response, crossover points, delay, and EQ parameters, easily customizing the sound and enhancing the overall listening experience. The addition of DSP adds flexibility and professionalism to audio systems, enabling tuning optimization tailored to suit diverse environments and needs.

NSTE-4020-BT is a four-channel, full-band Class D power amplifier with integrated Bluetooth receiver. Designed for applications such as motorcycles, electric vehicles, ATVs, and UTVs, where size, durability, and a wireless audio experience are paramount, this amplifier not only delivers efficient and stable amplification but also incorporates wireless connectivity, significantly enhancing ease of use and system integration. Each channel delivers 20W RMS output into a 2-ohm load (within 1% total harmonic distortion). Its high-performance, full-band Class D amplification architecture delivers clear, balanced, and powerful sound, covering the entire 20Hz to 20kHz frequency range and ensuring accurate rendering of musical details. For waterproofing, the product utilizes TE's professional-grade waterproof connectors and achieves IPX4 to IPX5 ratings, ensuring stable and reliable operation in humid, dusty, and even lightly splashed environments. Equipped with a Bluetooth wireless receiver module, users can easily connect their smartphones, tablets, or other Bluetooth devices to the amplifier, allowing them to stream their favorite music without wiring, greatly enhancing operational freedom and entertainment experience.

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.