RapcoHorizon LTI-1 Laptop to Pro Audio Interface With Ground Lift

The RapcoHorizon LTI-1 is built for audio engineers, AV integrators, and live production crews who need a reliable way to feed laptop or consumer device audio into a professional sound system without introducing hum or signal mismatch. Whether you're running a playback track from a MacBook at a corporate event, feeding background music into a house PA from a DJ laptop, or integrating a presentation computer into a touring rack, the LTI-1 handles the level and impedance gap between consumer headphone outputs and professional balanced XLR inputs.

The built-in ground lift switches on both outputs eliminate hum loops that commonly appear when connecting unbalanced consumer gear to balanced professional infrastructure. The selectable stereo or summed mono operation gives engineers the flexibility to feed a single mono channel or maintain discrete left and right sends depending on the system topology. The -20dB pad protects downstream preamps and mixers from the hot output levels common on laptop headphone jacks. Dual DBT transformers on the outputs provide the galvanic isolation needed to cleanly bridge consumer and professional signal chains.

Compact enough to drop into a mic bag or install in a small rack accessory position, the LTI-1 is a straightforward, transformer-based solution that solves a persistent problem in live and installed AV environments where laptop sources must integrate cleanly into professional-grade signal paths.