
Radial Engineering SB2 StageBug Passive Instrument DI Box
Compact DI Box for Studio or StageThe Radial StageBug SB-2 is a passive direct box that allows you to connect your instrument directly to a mixing console. Get warm, vintage-flavored direct sound from your bass, keyboard, or acoustic guitar. Type: Passive Direct Box Transformer: Eclips...
*Price sourced from Amazon.com. Last updated:Jun 26, 2026.Price and availability are subject to change.
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Overview
Compact DI Box for Studio or Stage
The Radial StageBug SB-2 is a passive direct box that allows you to connect your instrument directly to a mixing console. Get warm, vintage-flavored direct sound from your bass, keyboard, or acoustic guitar.
- Type: Passive Direct Box
- Transformer: Eclipse ET-DB3
- Applications: Bass, keyboards, and acoustic guitar
- Attenuation: 15dB Pad
- Feature: Stereo-to-mono Merge
Key Features
Passive Direct Box with Eclipse ET-DB3 Transformer
Stereo-to-mono Merge
15dB Pad
Specifications
Pros & Cons
👍 Pros
- Features an Eclipse ET-DB3 Transformer for clear and robust audio signal conversion.
- Offers a stereo-to-mono merge function, simplifying complex signal routing from stereo sources.
- Includes a 15dB pad, useful for attenuating hot signals from high-output instruments to prevent clipping.
- Provides passive operation, meaning no external power is required, enhancing portability and setup ease.
- Designed by Radial Engineering, known for building durable pro audio accessories, implying reliable construction.
👎 Cons
- As a passive DI box, it may not provide gain or impedance matching for extremely low-output or high-impedance instruments as actively powered DIs would.
- The stereo-to-mono merge function is specific to converting stereo signals and does not offer full stereo output.
- The 15dB pad is a fixed attenuation level, which might not be perfectly suited for every possible input signal strength.
- Does not include any ground lift switch, which could be a limitation in resolving hum and ground loop issues in some setups.
- The product is a single instrument DI box, meaning only one instrument can be processed through it at a time.