passive & active | HiZ → LoZ | unbal. → bal. | XLR output |
Veranstaltungstechnik – DI Boxes
DI boxes (direct injection) convert high-impedance, unbalanced signals (electric guitar, keyboard, CD player) to low-impedance, balanced XLR signals – for interference-free transmission over long cable runs to the mixing desk. Passive DI boxes need no power; active DI boxes (battery or phantom power) offer better performance with low-impedance sources and higher headroom. Applications: guitar and bass direct into PA (without mic'ing the amp), keyboard and synthesiser on stage, CD/MP3 player as PA playback source, laptop audio output (3.5 mm) to XLR stage box input. Stereo DI boxes for two-channel sources (stereo keyboards, stage piano). Important: place DI box as close to source as possible, then run balanced XLR cable over the longer distance to the desk. Expert advice: +49 (0)7666 / 88499-0 | sales@industry-electronics.com | Top manufacturers
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DI Boxes – FAQ
When do I need an active DI box?
Active DI boxes are recommended for low-impedance sources (e.g. active pickups, synthesisers with line output) and for very long cable runs (>20 m). Passive DI boxes suffice for most guitar/bass direct feeds.
Can I use a DI box for balanced signals?
For already balanced signals (XLR–XLR) no DI box is needed – a direct XLR connection is sufficient. DI boxes are designed for the unbalanced→balanced conversion.
Why Industry-Electronics?
| ► B2B specialistExclusively trade customers – no retail compromises. Individual pricing, net purchase on account, EDI integration on request. | ► 625,000+ itemsBroad range covering event technology, PA, lighting and accessories – one supplier for your entire stage and event infrastructure. | ► Expert adviceTechnical consultation from experienced staff – by phone and e-mail. Leasing arrangements for larger investments on request. |