dbx DI4 Active 4-Channel Direct Box with Line Mixer
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DESCRIPTION
The dbx DI4 is an active four-channel direct box with an onboard line mixer, converting unbalanced instrument and consumer-level sources into balanced, low-impedance outputs suitable for long cable runs into a mixing console or stage box. It suits engineers and integrators who regularly need to interface keyboards, backing tracks, media players and laptops with a professional audio system from a single, compact unit.
Each channel provides its own input, ground lift and balanced XLR output, so problematic earth loops can be resolved per source rather than across the whole group. The active circuitry preserves low-frequency content and transient detail from high-impedance pickups better than a passive transformer of comparable size, while the summing mixer section allows several sources to be combined and sent as a single feed where console inputs are limited. Construction follows the usual dbx approach of a rugged steel chassis intended for repeated setup and teardown on stage or in a rack drawer.
- Four independent active direct box channels in one enclosure
- Balanced XLR outputs for long, interference-resistant cable runs
- Unbalanced instrument and line-level inputs accepted on each channel
- Per-channel ground lift switching to eliminate hum & buzz from earth loops
- Integrated line mixer for summing multiple sources to a single output
A practical choice for live events, touring, houses of worship, corporate AV, education and studio work where multiple unbalanced sources must reach the console cleanly.
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