2 Channel Line Driver + Hi-low Level Converter

LEB-2 is a two-channel high-level to low-level signal converter designed specifically for upgrading car audio systems. Featuring high-level input and RCA output, it easily converts high-level audio signals from the original head unit or amplifier into standard RCA low-level signals, providing clean, stable audio input for power amplifiers, DSPs, or audio equipment, significantly improving sound quality and system compatibility. This high-level input is suitable for head units or OEM audio systems without RCA outputs, allowing users to easily expand their audio systems without replacing the head unit. The LEB-2 features a built-in gain control knob to precisely adjust the output level based on the output voltage of different head units, ensuring optimal matching with amplifiers and other devices, effectively preventing distortion and level mismatches.

The LEB-2's output uses standard two-channel RCA connectors, making it compatible with mainstream amplifiers and audio processors. Its compact body design, measuring 78mm (width) x 94mm (length) x 45mm (height), makes it easy to install in narrow spaces such as under the car dashboard, under the seat or in the trunk, suitable for the concealed wiring needs of various car models.

LEBR-2 is a high-performance, two-channel, high-level to low-level signal converter designed specifically for car audio system upgrades. It features not only high-level input and RCA output, but also a practical built-in remote output function, greatly facilitating expansion of power amplifiers or audio equipment. It is an ideal bridge between the original car audio system and upgraded audio systems.

The LEBR-2 safely converts high-level signals from the original head unit or audio system to standard RCA low-level outputs, making it compatible with a wide range of aftermarket amplifiers, DSPs, and other audio equipment. A built-in gain adjustment knob allows users to fine-tune the level according to varying signal strengths, achieving precise matching between systems and effectively improving sound quality while avoiding distortion or equipment damage caused by inappropriate input levels. A key feature of this product is its remote control output function. Triggered by a high-level signal, the LEBR-2 automatically outputs 12V upon detecting an audio signal. This voltage can be used to activate power amplifiers or other audio equipment requiring remote control, eliminating cumbersome wiring and enhancing system intelligence.

LEB-4 is a four-channel high-level to low-level signal converter designed specifically for upgrading car audio systems. Featuring high-level inputs and standard RCA outputs, it effectively bridges the gap between the original head unit and aftermarket amplifiers, DSPs, and other audio devices, providing the foundation for building a higher-quality audio system. Supporting four channels of high-level audio signal input, it easily adapts to most original head units or OEM audio systems, allowing users to upgrade their audio systems without replacing the head unit. The LEB-4's output uses standard four-channel RCA connectors, making it compatible with a wide range of amplifiers and digital processing devices on the market, ensuring stable and clear audio signal transmission and significantly improving overall sound quality. A built-in gain adjustment knob allows users to precisely adjust the output level of the original vehicle audio to match the input requirements of the power amplifier, avoiding distortion caused by excessive signal strength or low volume caused by insufficient signal strength. This adjustable design not only improves system compatibility but also facilitates installers and testers to achieve more professional tuning results.

LEBR-4 is a powerful 4-channel high-level to low-level output converter. It not only provides standard high-level inputs and RCA outputs, but also features independent gain adjustment and remote start outputs. This ensures high-quality, stable audio and control signals are delivered to downstream audio devices, such as amplifiers or DSPs, while preserving the original vehicle head unit. This product supports four high-level audio inputs, perfectly matching the output signals of the original vehicle head unit or OEM audio system, allowing you to fully upgrade your audio system without replacing the original head unit. Four RCA outputs connect to a multi-channel amplifier or audio processor, ensuring clear and balanced signal output and minimizing audio loss. Built-in level and gain adjustment allows each output to be individually fine-tuned, allowing installers to precisely match the input levels of different brands or models of downstream audio devices for optimal sound quality and improved overall audio performance. The LEBR-4 features a Remote Turn Out function that automatically activates the power amplifier or other devices upon detecting a high-level audio signal input, eliminating the cumbersome wiring of traditional wired start-ups and enhancing system automation and cleanliness. This feature is particularly useful for those who prefer to conceal their amplifier installation to maintain a clean and aesthetically pleasing interior.

NSLOC21 is a versatile two-channel audio signal amplifier and converter, integrating a high- and low-level signal converter and line driver, specifically designed for upgrading modern car audio systems. It not only supports high-level inputs up to 40V but also features built-in high-quality RCA outputs, enabling efficient connection to power amplifiers or audio processors for high-fidelity audio transmission. The NSLOC21 supports a variety of audio source inputs and features a signal-sensing start function. Upon detecting an audio input, it automatically activates the remote control output, providing a stable start signal for amplifiers or other devices, significantly enhancing system intelligence and ease of use. This feature is particularly useful for original head units without a REM output, eliminating cumbersome wiring and manual control. The product's sophisticated high- and low-level conversion function accepts high-level audio signals up to 40V at the input, offering high compatibility with a wide range of head unit output specifications. Whether using an OEM head unit or aftermarket audio device, the NSLOC21 smoothly converts the signal to a standard RCA output, effectively improving audio signal consistency and stability.

NSLOC81 is a high-performance 8-channel high- and low-level converter designed specifically for multi-channel audio system conversions. It features an integrated AUX input and offers a variety of professional features, including channel summing, independent channel adjustment, signal-sensing start, remote output, and peak level indication. It is ideal for seamlessly integrating OEM head units with high-end aftermarket amplifiers or DSP systems. Supporting up to eight high-level audio inputs, it efficiently converts high-level signals from the original head unit or center console into standard RCA low-level signals. It also features channel summing, ideal for applications where the original audio source has split frequency bands (such as separate door speakers and tweeters). By combining the signals, the NSLOC81 outputs a full-band signal, providing a more accurate and complete audio foundation for downstream amplifiers. Each channel features independent input gain adjustment, allowing users to fine-tune channel levels based on the actual source output level and system configuration, ensuring signal matching across the system and enhancing overall sound balance. The device is also equipped with a MAX level indicator light, which can intuitively reflect whether the signal has reached saturation, effectively preventing overload distortion and helping users quickly complete accurate debugging.