The Radial StageBug SB-1 is a high-performance active direct box made for players that are on the move. Made to fit inside a guitar case, the SB-1 is the smallest Radial DI box ever! But don’t let the small size mislead you—this ultra-compact StageBug sounds absolutely terrific.

Keeping the design simple, it has a standard 1/4" instrument input with a thru-put to feed your tuner or your on-stage amp. The ultra-quiet active circuit at once converts the signal from high to low impedance to reduce susceptibility to noise. The signal is then buffered and sent out the balanced XLR output for long cable runs to the PA system. It uses 48V phantom to provide the power, so the SB-1 does not require batteries or external supply to make it work. You simply plug in and you are ready to go.

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

• Audio Circuit Type: Active buffer with phase splitter
• # of Channels: 1
• Frequency Response: 20 Hz to 20 kHz
• Dynamic Range: >100 dB
• Gain: +1.3 dBu / +4.4 dB
• Clip Level: +3.3 dBu / 12.3 dBu
• Total Harmonic Distortion:< 0.006%
• Intermodulation Distortion:< 0.01%
• Phase Deviation: 25/12° Maximum
• Input Connector: 1/4"
  • Input Impedance: 800K/23K
  • Equivalent Input Noise (EIN): -101 dBu
  • Noise: -97 dBu
  • Maximum Input: +2 dBu / +8 dBu
• Output Connector: XLR
  • Output Impedance: 330 Ω
• Features: Input pad, 180° polarity reverse, ground lift
• Construction: 16-gauge steel chassis and outer shell
• Power: +48V phantom power, 5mA
• Conditions: For use in dry locations only, 5-40°C
• Dimensions: 1.35" x 1.85" x 4.5"
• Weight: 0.55 lbs (250 g)