EWI-ADB404
$239.00
The EWI ADB‑404 is a 4‑channel active DI box designed to connect instruments or audio sources with high‑impedance, unbalanced outputs to the balanced inputs of a mixer or audio interface. Balancing the signal helps eliminate noise and interference, especially over long cable runs.
Each channel includes a ground‑lift switch to remove hum caused by ground loops, and a pad (reductor) for reducing high signal levels when connecting to powerful outputs — including the speaker output of an instrument amplifier. This allows you to capture the character of the amp while still protecting the mixer input.
The ADB‑404 can be powered via 48V phantom power or the included AUS power supply, making it suitable for stage, studio, and installation use.
Not sure which DI Box you need?
Read our DI Box Guide for a clear explanation of active vs passive DI boxes, when to use them, and which models suit different setups.
Warranty: 5 Years
Frequency Resp. - - - - - - - - 20Hz to 20kHz ±0.5dB
Attenuator - - - - - - - - - - - 0, -30 dB
Inputs Impedance - - - - - - - - - 1MΩ, unbalanced 1/4" jack
Outputs Impedance - - - - - - - - - - 600Ω, balanced XLR
Power Requirements - - - - - - - 48V Phantom Power or Power Supply
Dimensions (WxHxD) - - - - - - - 483 x 44.5 x 95 mm
Weight - - - - - - - - - - - - - 1.3kg
Order weight is calculated on whichever of the dead (actual) or volumetric weight is the greatest. As of 11/9/25, capped $11.00 to $19.50 for up to 15kg to most areas. For orders under $50, options are Standard Postage $11.00 or Express Shipping for $19.50. Orders over $1,000 ship for free*. Express Shipping covers one delivery attempt, so please provide an address where someone is available to sign for courier delivery between 9am and 5pm weekdays. You can instruct us to ask the courier to leave your parcel unattended in a safe place, although please be aware that if anything happens to the parcel, neither we nor the courier company can be held responsible. Work addresses are a great delivery option. If using a work address, please include the business's name.
* For some larger items does not apply to Australian remote island locations, some mainland remote locations (outside Darwin NT and Perth WA metro areas) or outside Australia. If you are unsure if you are entitled to capped shipping, it is best to contact us before placing an order.
Got questions about ordering? Whether it's pricing, payment options, delivery times, or warranty details - we've got you covered. Head to the below footer menu on this page and click on FAQ page link for quick answers to the most common queries.
Collections: All Pro Audio, Lighting & Staging Gear, EWI, Signal Processors
Category: DI Boxes, EWI, In-store
Type: DI Boxes
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