RapcoHorizon LTIBLOX-NK Laptop BLOX 1-Channel Passive Direct Box

Compact Laptop Audio Adapter For Professional Systems

The RapcoHorizon LTIBLOX-NK is a passive direct box designed to bridge the gap between consumer-grade devices and professional audio systems. By converting a 3.5mm stereo output from laptops, tablets, or smartphones into a single balanced XLR mic-level signal, this unit ensures your audio source is compatible with mixers, PA systems, and recording consoles. Its straightforward design makes it an essential tool for engineers, DJs, and event technicians who need dependable connectivity without unnecessary complications.

Direct Conversion Without Power Requirements

This adapter takes the stereo signal from a 3.5mm connection and converts it to a balanced mono mic-level signal. Because it is fully passive, no batteries or phantom power are required, making setup quick and worry free. The LTIBLOX-NK is especially useful in environments where consumer devices must be integrated into professional A/V systems, ensuring the right output level every time.

Hardwired 3.5mm Input For Convenience

The unit includes a permanently attached 2-foot cable with a male 3.5mm TRS plug, providing a secure connection point for laptops and portable devices. This eliminates the need for separate patch cables or adapters, minimizing the chance of signal loss or connection problems. The input cable is rugged yet flexible, designed to stand up to frequent use in live or studio environments.

Professional Grade XLR Output

On the other end of the box, a standard male XLR output provides the balanced mic-level signal needed for professional mixers and amplifiers. This allows for a clean and reliable connection to house sound systems, studio gear, or broadcast equipment. With its industry-standard connector, the LTIBLOX-NK guarantees compatibility across a wide range of setups.

Durable And Portable Housing

The LTIBLOX-NK is built with a rugged enclosure that withstands the wear and tear of mobile production and live events. Compact in size, it fits easily in a gear bag, toolbox, or rack drawer, making it a practical choice for professionals who need quick access to a reliable direct box. Its simple, lightweight design ensures that it is always ready to perform when needed.

Perfect For Presentations Performances And Installations

This laptop interface is ideal for corporate presentations, classroom setups, live music, and houses of worship. Any application that requires consumer audio devices to connect seamlessly with professional systems benefits from the LTIBLOX-NK. By eliminating level mismatches and ensuring clean output, it delivers consistent performance in a variety of environments.