Audibax ADI-100P - Passive DI box with balanced XLR output, attenuator and ground lift

Audibax ADI-100P - Passive DI box with balanced XLR output, attenuator and ground lift

The Audibax ADI-100P is a passive direct injection (DI) box designed to match and balance high-impedance unbalanced signals—such as guitars, basses, or keyboards—and send them to a mixing console or audio interface at microphone level via a balanced XLR output . Being passive, it requires no external power supply. It features two 1/4" TS connectors wired in parallel (Input/Para Out) that can be used as inputs and, simultaneously, as direct outputs to an amplifier or monitor. It also includes a switchable pad for level adjustment and a ground lift switch to eliminate hum and ground loops. Its compact and robust design facilitates easy installation and reliable routing in both live and studio environments.

Main features

• Signal conversion and adaptation : from high unbalanced impedance to low balanced impedance at microphone level (XLR output).
• Versatile connectivity : 2 × TS 1/4" (Input/Para Out, in parallel) for direct input and send; 1 × balanced XLR for the table.
• Switched attenuator (pad) to accommodate signals with different levels.
• Ground lift : separation of earth between inlet and outlet to reduce noise and mass loops.
• Passive operation : no power supply; immediate start-up.
• Compact and durable design , intended for rental , backline and mobile studio.

Product benefits

• Clean and stable sound : line balancing and interference reduction in long cable runs.
• Maximum compatibility : directly integrates instruments, equipment outputs and pedalboards with microphone inputs on consoles and interfaces.
• Fewer noise problems : ground lift helps to cut hum from ground loops.
• Fast workflow : The Para Out allows you to send the signal simultaneously to the musician's amp and the mixing console.

Use cases

• Guitar/bass to mixing console while maintaining a direct send to the amplifier.
• Keyboards and modules with unbalanced outputs in scenarios with long cabling.
• DJs and players with TS/RCA outputs (using adapters) for FOH.
• Educational studio and home studio for silent recordings via XLR.

Frequently Asked Questions

• Does it need power? No. It's a passive DI.
• What does the ground lift do? Ground lift separates input and output grounds to reduce hum.
• What is the pad for? It allows you to attenuate the signal when the output level of the instrument/equipment is high.
• Can I use the "Para Out" jack as an output to the amp? Yes, the two TS jacks are in parallel and one can power your amplifier while sending the balanced signal to the mixing console.

Connection tips

• Place the DI near the instrument to keep the unbalanced section short and send the long path through the balanced XLR output .
• If a buzzing sound appears, activate ground lift . If the signal saturates, use the pad .

Project description

Audibax ADI-100P passive injection box with 2 × TS 1/4" in parallel (Input/Para Out) , balanced XLR microphone level output , switched attenuator (pad) , ground lift switch ; power-free operation; compact format for live performance and installation.