Switchcraft SC702CT Custom Transformer Stereo Audio Direct Box

Professional Stereo Direct Box

The Switchcraft SC702CT Custom Transformer Stereo Audio Direct Box converts unbalanced signals from devices such as MP3 players, laptops and DJ mixers into balanced, microphone-level output. A premium, fully shielded isolation transformer eliminates ground loop interference and preserves signal purity. Intelligent summing combines stereo inputs into a single 3-pin XLR mono output for straightforward integration with professional sound systems. The unit is housed in a durable metal casing built for touring and frequent use.

Audio Engineers and Live Sound Technicians

This direct box suits engineers who need to connect consumer or semi-pro stereo sources to mono console channels or house PA systems without introducing hum. It is not intended for users who require discrete stereo outputs, multiple independent channels or instrument-level through-puts for stage monitoring. Buyers needing rackmount formatting or additional pad and lift switches should look at alternative DI solutions.

Frequency Response and Impedance Headroom

A wide frequency response from 20 Hz to 40 kHz captures the full audible spectrum from deep bass to extended treble. Optimal output impedance below 50 Ohms minimises signal loss through long cable runs and subsequent amplification stages. The transformer handles typical line-level sources cleanly but will saturate if driven by excessively hot signals beyond professional operating levels.