Active and passive DI boxes
DI Boxes for Sale
This page shows DI boxes including the Behringer DI100, DI400P and DI4000 V2, the Radial JDI passive and stereo Jensen-equipped boxes, and the DBX DI1 active direct box.
- Behringer DI100 Ultra-DI
- Radial JDI Jensen-equipped
- Behringer DI4000 V2 4-channel
- DBX DI1 active direct box
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How to choose
Choose a passive DI for a simple instrument signal and an active DI when you need extra gain or longer cable runs.
Beginner
A bass or acoustic guitar player starting out can use the Behringer DI100 or Samson MD1, both simple passive DI boxes that work well for a single instrument. Set the ground lift switch if you hear hum, and keep the box off the floor where it could be stepped on.
Intermediate
Players running keyboards or stereo sources often reach for the Radial JDI Stereo or Samson SMax MD2 Pro for a balanced stereo feed to the desk. Check phantom power requirements on active units before connecting to a mixer that may not supply it.
Expert
Engineers handling multiple instrument feeds at once use multi-channel units like the Behringer DI4000 V2 or DI4800A with its line isolator for extra flexibility. Keep spare batteries on hand for active DI boxes that are not phantom powered, and test each channel before a show to catch faults early.
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About DI Boxes
A DI box converts an instrument's unbalanced signal to a balanced one that can travel a long cable run to the mixer without picking up noise. Bassists, acoustic players and engineers buy them to connect instruments and keyboards directly into a PA or recording system.
This page includes passive options like the Behringer DI100 and Radial JDI, active boxes such as the Behringer DI4000 V2 and DBX DI1, and multi-channel units including the Behringer DI4800A with its booster and line isolator.
Why Trust OneStopMusic?
As the online home of Marshall Music Pretoria, we've helped countless musicians find their sound. Something small enough for a bedroom setup? No problem. Big enough for a full stage? It's here — and we deliver anywhere in South Africa.
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Buying DI Boxes in South Africa
Looking for DI Boxes? Everything on this page is priced in Rand and held in real stock at OneStopMusic — the online store of Marshall Music Pretoria. We deliver anywhere in South Africa, usually within 2–4 working days, and you are welcome to try the gear in person at our Menlo Park store. Not sure which model is right for you? Call 012 991 6077 — our team plays this gear every day and will give you honest, pressure-free advice.