Radial SB-5W WallDI: The Ultimate Wall-Mount Stereo DI for Seamless Audio Connectivity
Transform your audio setup with the Radial SB-5W WallDI! This passive wall-mountable stereo direct box is a game-changer for AV integrators.
Key Features:
• Effortlessly connect unbalanced audio sources like laptops, smartphones, or tablets to a balanced audio system.
• Dual transformers eliminate hum and buzz caused by ground loops, ensuring professional sound quality.
• Front panel 3.5mm TRS and RCA connectors for easy connection to any stereo source, along with a fully variable level control for convenient volume adjustments.
How It Works:
Whether you're using it with a laptop, tablet, or CD player, the Radial SB-5W WallDI makes audio connection a breeze. Connect the mini TRS audio jack from your laptop directly to the 3.5mm input, or simply plug in the headphone out from your tablet or cell phone. With the convenient front panel level control, you can adjust the volume and sum to mono if needed. For CD players, use the RCA jacks to feed the PA system at the far end of the room.
Benefits:
• Professional sound for installation projects.
• Fast, efficient, and permanent installation with screw terminals and tie-down points.
• 3-year, transferable warranty for peace of mind.
Technical Specifications:
- Audio circuit type: Passive transformer isolated
- Frequency response: 20Hz - 20kHz
- Dynamic range: >120dB
- Gain: -3dB
- Clip Level: +17dBu
- Total harmonic distortion: 0.002%
- Phase Deviation: 0° @ 100Hz; -3° @ 50Hz
- Input Impedance: Approx 10K with 100K Load
- Output Impedance: 5k Ohms
- Equivalent Input Noise: -98dBu
- Noise: -101dBu
- Maximum Input: +20dBu
- Mono Sum, Ground lift
- Input Connectors: RCA, 3.5mm TRS inputs
- Output Connectors: Screw down terminals (- G +)
- Construction: 14 gauge steel chassis & outer shell
- Size (L x W x D): 2.42' x 1,62' x 4.24' (61.4mm x 41.1mm x 107.7mm)
- Weight: 0.5 lbs (227 grams)
- Shipping size (L x W x D): 6.25' x 4.25' x 3' (159mm x 108mm x 76mm)
- Shipping weight: 0.65 lbs (295 grams)
- Power: Passive, no power required
- Conditions: For use in dry locations only between 5°C and 40°C



The Radial SB-5W WallDI is perfect for AV integrators looking to connect unbalanced audio sources like laptops, smartphones, or tablets to a balanced audio system. It features dual transformers to eliminate ground loop noise, front panel 3.5mm TRS and RCA connectors, and a fully variable level control. The box is made of 14 gauge steel, with dimensions of 2.42' x 1,62' x 4.24' (61.4mm x 41.1mm x 107.7mm) and weighs 0.5 lbs (227 grams). It's passive, so no power is required, and it's designed for use in dry locations between 5°C and 40°C.