4 Bands Parametric Equalizer with Bluetooth Receiver

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.

EQN-408 four-band parametric equalizer is a powerful yet user-friendly audio processing device designed for users seeking precise sound quality. It features four independent frequency bands: bass, mid-bass, midrange, and treble, allowing users to fine-tune the sound quality of each frequency range. Whether enhancing the impact of low frequencies or improving the clarity of high frequencies, the EQN-408 easily delivers richer and more layered music. With a gain slope of up to 18dB, the equalizer delivers powerful and precise frequency boost or attenuation, effectively correcting frequency deficiencies in audio systems and optimizing overall sound quality. The device supports an AUX input and is compatible with a variety of audio sources, allowing users to connect to mobile phones, tablets, computers, and other devices for comprehensive sound source adaptation. Whether playing high-fidelity music or enjoying everyday entertainment, the EQN-408 provides stable operation, ensuring the audio signal is processed for optimal sound quality.

EQN-908 nine-band parametric equalizer is a high-performance audio adjustment device designed for audiophiles and professional audio engineers. Covering nine key frequency bands—50Hz, 125Hz, 250Hz, 500Hz, 1kHz, 2kHz, 4kHz, 8kHz, and 16kHz—it comprehensively covers low, mid, and high frequencies, enabling precise sound adjustment in diverse audio environments. Supporting up to 18dB of gain adjustment, users can freely adjust the volume of each frequency band to their personal preference, achieving multi-layered sound shaping. Through precise frequency control, the EQN-908 effectively eliminates unwanted noise and frequency interference, enhancing overall sound purity and spatial perception, and significantly improving the expressiveness of audio systems. Users can quickly connect and switch between audio sources without complex setup, enjoying high-quality audio output. The simple and practical interface enhances ease of use, making it suitable for a variety of scenarios, including home theaters, car audio systems, and professional recording studios.

EQN-708 seven-band parametric equalizer is a professional-grade audio processing device designed for users who demand the ultimate in sound quality. Covering seven key frequency bands—50Hz, 125Hz, 315Hz, 750Hz, 2.2kHz, 5kHz, and 16kHz—it covers a wide range from low to high frequencies, enabling detailed adjustment of the sound performance in each frequency band. Whether enhancing the depth of bass or enhancing the clarity of treble, the EQN-708 precisely delivers, enriching your audio experience with richness and depth. Supporting up to 18dB of gain boost, this equalizer effectively adjusts the intensity of each frequency band, enhancing sound quality with fullness and expressiveness. With precise frequency adjustment, users can easily eliminate ambient sound interference or system sound quality deficiencies, achieving the ideal listening experience. The EQN-708 maintains its compact and lightweight design, measuring 180mm long, 120mm wide, and 20mm high, making it flexible and adaptable to various environments. Whether it is a car center console, an audio equipment stand or a recording studio mixing console, it can be easily placed without taking up too much space, keeping it neat and beautiful.

NIP7-4150 is a four-channel, full-range Class D amplifier designed for harsh environments. With its IPX67/IPX7-rated water and dust resistance and efficient heat dissipation, it's the ideal audio core for off-road vehicles, motorcycles, boats, and outdoor sound systems. The amplifier's one-piece die-cast aluminum heat sink ensures efficient heat dissipation while providing a robust barrier for the internal circuitry, fully protecting it from moisture, dust, and the elements. Its stable and powerful power output delivers clear, rich audio performance, accurately reproducing high-frequency detail and mid- and low-frequency dynamics. The NIP7-4150 offers an optional built-in DSP (digital signal processing) module, providing advanced users with even more refined sound tuning capabilities. It implements professional functions such as EQ, time delay, and crossover control, enabling the creation of a more personalized and professional audio system.