Skip to content

Radial Engineering StageBug SB-1 Active DI – Direct Injection Box SB1


StageBug SB-1 Active DI – Direct Injection Box

1 in stock (can be backordered)

SKU: SB1 Categories: , , Tags: , , , , , , , , ,


Designed for acoustic guitar, the SB-1 is an ultra-compact active direct box that will fit snuggly in your guitar case, or bag, so that you can take it anywhere with ease. The easy to use plug and play design allows you to set up the SB-1 without any hassle, and with it being 48V phantom powered there’s no need for batteries. The SB-1 includes PAD that reduces the input sensitivity by 10dB for louder instruments, an unbalanced hi-Z input connection, a thru connection for your tuner or amplifier, a lo-Z balanced output signal and a phase button that reverses the polarity to protect against hot spots that can cause feedback.



• Active direct box for acoustic guitar
• Ultra compact to fit in your guitar case
• Plug & play easy to use feature set
• 48V phantom powered, no batteries needed!



• Audio circuit type: Active Buffer with Phase Splitter
• Number of channels: 1
• Frequency response: 20Hz to 20KHz
• Dynamic range: >100dB
• Gain: +1.3dBu/+4.4dB
• Clip Level: +3.3dBu/+12.3dBu
• Total harmonic distortion: <0.006%
• Intermodulation Distortion: <0.01%
• Phase Deviation: 25/12° Maximum
• Input Impedance: 800K/23K
• Output Impedance: 330 Ohms
• Equivalent Input Noise: -101dBu
• Noise: -97dBu
• Maximum Input: +2dBu/+8dBu
• Features
• Input pad, 180° polarity reverse, Ground lift
• Input Connectors: 1/4″
• Output Connectors: XLR

• Construction: 16 gauge steel chassis & outer shell
• Size (L x W x D): 114mm x 47mm x 34mm
• Weight: 0.55 lbs (250 grams)
• Shipping size (L x W x D): 203mm x 127mm x 76mm
• Shipping weight: 0.8 lbs (365 grams)
• Power: 48V phantom power, 5mA
• Conditions: For use in dry locations only
• Warranty: Radial 3-year, transferable





Back to Home Page

View on manufacturers site:


Weight .25 kg
Dimensions 11.4 × 4.7 × 3.4 cm