The Radial StageBug SB-5W Wall Direct Box is a purpose-built installation DI designed to deliver clean, reliable audio connectivity in permanent AV, education, worship, and commercial environments.
Engineered to mount directly into standard electrical wall boxes, the SB-5W provides a professional-grade instrument and line-level interface without cluttering the room with loose adapters or floor boxes. It’s an elegant, durable solution for classrooms, conference rooms, stages, studios, and multi-use spaces where consistent audio performance and clean aesthetics matter. Built around Radial’s trusted transformer-isolated circuitry, the SB-5W ensures excellent signal integrity while eliminating ground loops, hum, and noise. A front-panel ¼" input makes it easy to connect instruments or playback devices, while the balanced XLR output on the rear routes audio cleanly to mixing consoles, stage boxes, or installed sound systems. Rugged construction and passive operation mean the SB-5W delivers years of maintenance-free performance in high-use environments.
Radial StageBug SB-5W Wall Direct Box Features
- Professional wall-mounted direct box for permanent audio installations
- Mounts into standard electrical wall boxes for clean, integrated setups
- Transformer-isolated design eliminates hum, buzz, and ground-loop noise
- Handles instrument-level and line-level sources with ease
- Front-panel ¼" input for quick, convenient connections
- Rear-panel balanced XLR output for clean signal routing to audio systems
- Passive design requires no power or batteries
- Ideal for classrooms, conference rooms, worship spaces, studios, and AV installs
- Built with Radial’s legendary durability for long-term reliability
Radial StageBug SB-5W Wall Direct Box Applications
- Using the SB5W with a Laptop - Connect the mini TRS audio jack from your laptop directly to the 3.5mm input on the Radial StageBug SB-5W and it automatically converts the unbalanced signal to a lo-Z balanced line to feed the PA system up to 100 meters away.
- Using the SB5W with a tablet - No need to convert from digital to analog! Simply connect the headphone out from your tablet or cell phone to the Radial StageBug SB-5W and let it do the work. Adjust the volume using the convenient front panel level control and sum to mono if need be.
- Using the SB5W with a CD player - Connect the line level output from your CD player or hi-fi using the convenient RCA jacks to feed the PA system at the far end of the room. Adjust the volume level from the source, the Radial StageBug SB-5W wall plate or the mixer channel.
Radial StageBug SB-5W Wall Direct Box Specifications
- Technical Specs:
- Audio Circuit Type: Passive transformer isolated
- Frequency Response: 20Hz - 20kHz
- Dynamic Range: >120dB
- Noise Floor: -101dBu
- Equivalent Input Noise: -98dBu
- Maximum Input: +20dBu
- Phase Deviation: 0° @ 100Hz; -3° @ 50Hz
- Total Harmonic Distortion: 0.002%
- Input Impedance: Approx 10K with 100K Load
- Output Impedance: 5k Ohms
- Gain: -3dB
- Clip Level - Output: +17dBu
- Stereo Separation: >77dB
- Features:
- Controls: Level control adjustable passive trim
- Mono: Mixes left and right inputs
- Ground Lift: Disconnects audio ground at both terminals
- Inputs: RCA and 3.5mm TRS stereo inputs
- Outputs: Screw down terminals (- G +)
- General:
- Construction: 14 gauge steel chassis & outer shell
- Finish: Durable powder coat
- Size (L x W x H): 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
- Installation: Only use in low voltage systems and enclosures
Radial StageBug SB-5W Wall Direct Box Includes
- Radial StageBug SB-5W Wall Direct Box
- User Guide
- Manufacturer Warranty
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