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Warm Audio
Warm Audio WA-DI-A2 2 Channel Active DI Box
For connecting guitar, bass, keys and other 1/4” stereo source instruments directly to mixers and audio interfaces.
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Want to Click and Collect or try items at our Guildford Store?
The store is open 10am - 6pm Monday to Saturday and 11am - 5pm Sunday and bank holidays.
The stock information shows the quantity of units that are available to purchase at the Guildford store and the quantity of units that are available at our off-site Guildford warehouse. These stock levels are updated in real time.
Our Click and Collect service is available at our Guildford store from 10am - 6pm Monday to Saturday, and 11am - 5pm on Sunday. You can either choose Click and Collect as your delivery option online or, during store opening hours, call our sales team on 01483 456777 for assistance with placing your order.
If you have placed your order online, you will receive a confirmation email of your order and a separate follow-up text or email to confirm when your item is ready for collection.
Please do not come to the store before you have received the follow-up message, as your order may not yet be ready at the store.
If the only available stock is in our off-site warehouse it can be brought to the store location for you to try - you just need to contact the store within opening hours. Please note any requests received after 3.30pm will not arrive at the store until the following morning.
Please be aware that stock availability can change quickly both online and in-store, so we would always recommend placing your Click and Collect order as soon as possible to reserve your item.
SKU: WA-DI-A2
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Product Description
The Warm Audio WA-DI-A2 is a premium 2-channel active DI box designed to get your stereo instruments into any mixer or audio interface with clarity and confidence. Equipped with custom CineMag transformers and switchable active/passive operation, it delivers clean, balanced mic-level signals while preserving the natural tone and feel of your keys, synths, pedalboards and modelled guitar rigs.
Whether you are wiring up a studio, building a reliable live rig or just want your instruments to sound their best straight into the desk, the WA-DI-A2 gives you professional signal integrity in a compact, road-ready box. With variable pad, ground lift and per-channel active circuitry powered by 48v phantom, it is a flexible problem-solver for modern stereo setups.
Studio-grade stereo DI for modern rigs
The WA-DI-A2 is purpose-built for stereo instruments and dual-channel sources. Plug in keyboards, synth modules, stereo guitar processors, pedalboards or playback rigs and convert them instantly to balanced mic-level outputs that slot straight into any mic pre. The matched channels keep your stereo image tight and consistent, making it ideal for wide ambient sounds, layered keys and complex effects chains.
Active circuitry with switchable passive mode
As an active stereo DI, the WA-DI-A2 uses 48v phantom power from your mixer or interface to provide additional headroom and optimal impedance matching for weaker or high-impedance sources. Each channel can be switched between active and passive operation, so you can tailor the response to suit different instruments or even blend high and low impedance sources across the two inputs. If phantom power is not available, the unit can still be used passively.
CineMag transformer tone and isolation
At the heart of the WA-DI-A2 are custom-wound CineMag USA output transformers. These deliver exceptional clarity with rich low-end, smooth highs and excellent phase coherence, while providing the isolation and noise rejection you need on stage and in the studio. The transformer-balanced design helps maintain the character of your instrument, so what you hear in your monitors is what you are actually playing.
Road-ready build with practical controls
Housed in a rugged aluminium chassis, the WA-DI-A2 is designed to withstand the demands of touring and permanent installations alike. A variable pad from -3 dB to -30 dB lets you tame hot outputs from drum machines, samplers and modelled rigs, while the ground lift switch helps eliminate hum and ground-loop noise. With its compact footprint and robust construction, it is a reliable workhorse for any professional audio environment.
Features
- 2-channel active stereo DI - Provides two matched channels of direct injection for stereo instruments and dual sources, making it easy to route keyboards, synths, stereo pedalboards and modelled rigs straight to mixers and interfaces with consistent tone across left and right.
- Selectable active or passive operation - Each channel can run in active or passive mode, powered by 48v phantom in active operation. This flexibility lets you optimise headroom and impedance matching for everything from high-impedance instruments to hotter line-level sources.
- CineMag transformer-balanced outputs - Custom CineMag USA transformers deliver clean, musical signal conversion with strong low-end, detailed highs and excellent isolation, helping to preserve your instrument’s natural character while reducing noise and interference.
- Rugged chassis with pad and ground lift - The tough aluminium enclosure is built for life on the road, while the variable -3 dB to -30 dB pad and ground lift switch give you practical control over level and noise, ensuring reliable performance in demanding live and studio setups.
Specifications
General
- Product Type: 2-channel active stereo DI box
- Transformer-Balanced Stereo Direct Box
- Operation Modes: Active or passive (selectable)
- Application: Converts instruments to mic-level signals without signal degradation
- Ideal Use: Direct connection of instruments to mic preamps, mixers and audio interfaces
- Chassis: Rugged aluminium construction
- Pad: Variable from -3 dB to -30 dB
- Dimensions: 5" x 5-1/2" x 2-7/8"
Components
- Output Transformer: Custom-wound CineMag USA
- Circuitry: Top-quality Class-A components
- Circuit Board: Gold-plated traces
Power (Active Mode)
- Power Source: 48v phantom power via line-level mixer or interface connection
- Operation: Can also be used in passive mode without phantom power
Performance
- Balanced Output: 600 ohms, mic level
- Input Impedance: 1 M ohms
- Active THD: 0.01% from 20 Hz to 50 Hz, less than 0.003% from 50 Hz to 20 kHz
- Passive THD: 0.01% from 20 Hz to 50 Hz, less than 0.004% from 50 Hz to 20 kHz
- Frequency Response (Active/Passive): 10 Hz to 100 kHz +/- 0.5 dB
Popular Uses
- Stereo keys and synths to balanced XLR outputs feeding mixers or audio interfaces
- Stereo guitar modellers and amp simulators to front-of-house mixers or recording interfaces
- Stereo pedalboards and effects rigs to PA systems
- Electronic drum modules and samplers to stage boxes or consoles
- Laptop audio interfaces and playback rigs to live sound systems
