DI Boxes

Passive and active DI boxes and re-amp boxes.
DI Boxes

DI Boxes: What to Know

DI boxes convert unbalanced high-impedance instrument signals into balanced low-impedance mic-level signals that run cleanly over long cable distances to mixers, interfaces, and PA systems. Bassists, keyboardists, and acoustic guitarists use them to connect directly to FOH or studio preamps without tone loss or noise. Passive DIs need no power and work great for most instruments. Active DIs require phantom power or batteries but handle weaker signals like piezo pickups and provide more headroom. Re-amp boxes reverse the process, sending recorded tracks back through guitar amps and pedals.

What to Look For

Passive DIs use transformers to convert impedance. Look for Jensen or Cinemag transformers in higher-end models for better frequency response and less distortion. Active DIs use preamp circuits and need phantom power or battery power. They handle low-output sources better and often include pad switches for hot signals and ground lift switches to eliminate hum. Input impedance matters: 1 megaohm or higher preserves tone from passive pickups. Thru jacks let you split signal to an amp while sending to the board. Stereo DIs handle two channels in one box, useful for keyboards and DJ setups. Metal chassis survive the road better than plastic. XLR output is standard. Re-amp boxes need proper impedance matching and level controls to drive guitar amps from line-level sources without clipping or noise.

Top Brands

ART offers affordable passive and active DIs for studio and live work. Warm Audio builds transformer-based DIs with vintage-style components. Heritage Audio makes high-end active DIs with clean preamp circuits.

Shop DI Boxes at Blackout Audio

A good DI is the difference between a clean signal and a noisy mess when you're running long cables or dealing with ground loops. Pair one with your bass rig, keyboard setup, or acoustic guitar to get professional results in the studio or on stage. Keep a passive DI in your gig bag and an active one in the rack for sources that need the extra gain. Free shipping on orders over $199 across Canada.