Radial StageBug SB-4 1-channel Active Instrument Direct Box
Unlock the true tone of your piezo-equipped acoustic guitar, violin, or upright bass with the Radial StageBug SB-4 1-channel Active Instrument Direct Box. This active DI box is custom tuned to reduce the harsh quack and peakiness often found in piezo pickups. Therefore, providing a warm and natural sound that enhances your performance.
Designed Specifically for Piezo Pickups
Firstly, the SB-4 features a high 5M impedance that expands the frequency response, delivering a fuller and more natural soundstage. This direct box smooths out unwanted resonances so your instrument sounds its best.
Reliable Signal Transmission Over Long Distances
With the ability to send your audio signal over 300 feet without loss, the StageBug SB-4 is perfect for live settings. You can confidently connect to any PA or stage box without worrying about signal degradation, ensuring your sound stays crisp and clear.
Practical Features for Live Performance
The SB-4 includes essential controls such as a high-pass filter (HPF) to cut mud and a 180-degree polarity switch to combat feedback in challenging live environments. Plus, the 1/4-inch aux output lets you feed a stage amp or monitor. Powered by 48V phantom power, it integrates seamlessly into any pro rig.
Key Features
- Active direct box crafted for piezo instruments
- High 5M impedance for natural sound
- Over 300 feet signal range without loss
- HPF switch removes stage mud
- Polarity switch reduces live feedback
- 1/4″ aux output for amp or monitor
- Powered by 48V phantom power





