Radial Engineering StageBug SB-1 Active Acoustic Direct Box

Product #96292 | SKU RA-SB-1 | Radial
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Our Price $179.00 AUD
In Stock with Supplier Usually ships in 2 - 3 working days what does this mean?
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The Radial Engineering StageBug SB-1 Acoustic is an active direct box that has been designed to provide a quick and dependable connection from your instrument to the PA. It converts the hi-Z output from your instrument to a balanced low-Z signal via standard 3-pin XLR connectors. Balancing the signal reduces noise, enables longer cable runs, and improves the sound quality by matching the instrument's impedance with that of the PA. No batteries or external power supplies needed. You simply plug in and you are set to go.

The active circuit features 220kΩ input impedance to eliminate problems with loading while delivering a smooth, warm sound to the audio system. This is particularly important when interfacing vintage guitars with low output pickups when you plan to do some recording or re-amping. This unit is also equipped with a -12 dB pad, which reduces input sensitivity of the circuit to enable louder instruments to be used without distortion. To reduce feedback, toggling the 180° polarity switch helps eliminate hot spots on stage that can cause low-frequency resonance.

Made to fit inside a guitar case for players that are on the move, this compact DI box delivers enhanced sound throughput. Although the SB-1 has been optimised for use with acoustic guitars, it is also well-equipped to handle electric bass guitars and keyboards.


Circuit Type Active buffer with phase splitter
Frequency Response 20 Hz to 20 kHz
Total Harmonic Distortion <0.006%
Dynamic Range >100 dB
Input Impedance 800 k / 23 k
Maximum Input +2 dBu / +8 dBu
Gain +1.3 dBu / +4.4 dB
Clipping Level Output: +3.3 dBu / +12.3 dBu
Output Impedance 330 Ω
Equivalent Input Noise -101 dBu
Noise Floor -97 dBu
Intermodulation Distortion <0.01%
Deviation from Linear Phase 25 / 12° maximum
Switches Pad, Phase
Functions Automatic merge
Input Pad Switch -12 dB
XLR Configuration + = Pin 2, - = Pin 3, Ground = Pin 1
Polarity Reverse Yes, 180°
Construction 16 gauge steel chassis and outer shell
Finish Baked enamel
Power 48 V phantom power
Dimensions 11.40 x 4.70 x 3.40 cm
Weight 0.25 kg

In The Box

  • Radial Engineering StageBug SB-1 Active Acoustic Direct Box


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  • Product: Radial Engineering StageBug SB-1 Active Acoustic Direct Box
  • Manufacturer: Radial
  • Model: SB-1
  • SKU: RA-SB-1
  • RM Product #: 96292
  • Warranty: 5 year manufacturer warranty

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