Radial StageBug SB2 Passive Acoustic Instument Direct Box

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Product Description

The high-performance direct box design of the Radial StageBug SB2 Passive DI is built compact to fit inside of a guitar case for the needs of the touring musician. Ultra-compact and feature-packed the SB2 uses a convenient 1/4 inch instrument input and thru-put to feed an on-stage amp or tuner. Impedance matching and signal balancing is made with the onboard custom Eclipse ET-DB3 transformer. When using extra high output instruments, a -15dB pad can be inserted into the signal path enabling the SB2 to be used with active basses and digital pianos that often tend to overload the input side of the interface.

Radial StageBug SB2 Passive DI Features
  • Passive DI for bass, acoustic and keyboard
  • Ultra compact to fit in your guitar case
  • Plug & play easy to use feature set
  • Transformer isolation eliminates noise

An innovative stereo-to-mono merge function provides a convenient way to connect stereo keyboards and computers without having to reset the source for mono operation, saving time and input channels on the PA. The SB2 output features an XLR wired to the AES standard with pin-2 hot.

Once connected, the SB2 delivers a smooth warm sound reminiscent of older vintage gear. The Eclipse ET-DB3 transformer is magical in its ability to handle extreme signal levels with a natural compression that is pleasing to the ears. The transformer also helps eliminate hum and buzz caused by ground loops by isolating the input from the output. This is augmented with a ground lift switch that lifts pin-1 on the XLR for quiet, professional results.

These features make the StageBug SB2 a great choice for electric bass, acoustic guitar and keyboards where small size and big performance matters!

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Helpful Info about the Manufacturer
Phone:  604-942-1001 Warranty:  3 Year Transferrable

Product Specifications

Radial StageBug SB2 Passive DI Specifications
  • Audio circuit type: Passive, transformer based
  • Number of channels: Single channel (mono)
  • Frequency response: 20Hz ~ 20KHz (± 0.5dB)
  • Dynamic range: 115dB
  • Maximum input: +20dB
  • Total harmonic distortion: 0.005% @ 1kHz
  • Phase deviation: 3° @ 100Hz; 8° @ 50Hz
  • Input impedance: 140k Ohms, unbalanced
  • Output impedance: 1k Ohms, balanced
  • Transformer: Eclipse ET-DB3, 12:1 ratio
  • Shield: Copper foil
  • Input pad: -10dB
  • Auto Merge: Sums left & right sources to mono
  • Ground lift: Disconnects pin-1 at XLR output
  • XLR configuration: AES standard (pin-2 hot)
  • Connectors: 1/4 inch in & thru, XLR-M out
  • Construction: 14 gauge steel chassis & outer shell
  • Finish: Baked enamel
  • Power: Passive, no power required
  • Dimensions: (L xWxD) 4.5 x 1.85 x 1.35 inches (114 x 47 x 34mm)
  • Weight: 0.55 lbs (250 grams)
  • Warranty: Radial 3-year, transferable

Customer Reviews

Review: Christine Submitted: 12/27/2018

Product Rating5 out of 5 stars.



Good buy.
Product Rating

Product Review

The product is functional and works great in live productions.

Review: Don Audio, Submitted: 10/8/2015

Product Rating5 out of 5 stars.



Shhh .... keep it a secret.

Product Review

I buy these over the Radial Pro DI Passive Direct Box. They are small, lighter, less money and do the same job.


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