Pricing and availability
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Price
Average Price: $91
Budget/Beginner
$119
$300+
Price Tier
Budget
Standard
High-end
Price History
Based on price data from 6 merchants for "Radial StageBug SB-2 Passive Direct Box". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Compact yet powerful, the Radial StageBug SB-2 Passive Direct Box is an essential tool for musicians on the go. Perfectly suited for bassists, keyboardists, and acoustic guitarists, this DI box ensures a seamless transition from your instrument to the PA or recording interface. Its core component, the custom Eclipse ET-DB3 transformer, skillfully matches impedance and balances the signal, delivering a warm and vintage-like tone while eliminating unwanted hum and buzz.
The SB-2's design is user-friendly and efficient. Featuring a 1/4" input and thru-put, it easily connects to your on-stage amp, while the balanced XLR output ensures top-notch audio quality. The clever stereo-to-mono merge function is perfect for those with stereo keyboards or computer setups, simplifying your signal path and saving precious mixer channels. Additionally, the -15dB pad is invaluable for managing high-output instruments like active basses and digital pianos, preventing any distortion.
Built with a robust metal housing, the StageBug SB-2 is compact enough to fit inside your gig bag or instrument case, making it a reliable companion for both studio sessions and live performances. Its ground-lift switch further enhances its versatility, ensuring quiet operations free from ground loop issues. Whether you're a touring professional or a recording enthusiast, the Radial StageBug SB-2 delivers pristine audio quality with unmatched convenience.
Key Features:
- Compact passive DI for bass, keyboards, and acoustic guitars
- Custom Eclipse ET-DB3 transformer for impedance matching and signal balancing
- -15dB pad for high-output instruments
- Stereo-to-mono merge function
- Transformer isolation to eliminate noise
- Ground-lift switch for noise-free operation
- 1/4" input and thru jack, balanced XLR output
- Fits easily in a gig bag or instrument case
Product specs
| Type | Acoustic/Bass/Keyboard Passive Direct Box |
| Channels | Stereo to Mono |
| Pads | -15dB |
| Ground Lift | Yes |
| Inputs | 1 x 1/4" (input), 1 x 1/4" (input/thru) |
| Outputs | 1 x XLR |
| Height | 1.35" |
| Width | 1.85" |
| Depth | 4.5" |
| Weight | 0.55 lbs. |
FAQs
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What type of instruments can the Radial StageBug SB-2 Passive Direct Box be used with?
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The Radial StageBug SB-2 is designed for use with acoustic instruments, bass guitars, and keyboards, converting their signals for balanced, low-impedance output suitable for mixing consoles.
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Does the Radial StageBug SB-2 require any external power to operate?
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No, the Radial StageBug SB-2 is a passive direct box and does not require external power. It uses a transformer to convert signals without the need for a power source.
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Can the Radial StageBug SB-2 handle high-output instruments?
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Yes, the Radial StageBug SB-2 includes a -15dB pad switch, allowing it to handle high-output instruments without distortion, making it suitable for a wide range of audio sources.
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Does the Radial StageBug SB-2 offer any noise reduction features?
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Yes, the Radial StageBug SB-2 features a ground lift switch which helps eliminate hum and noise caused by ground loops, ensuring a clean signal.
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What are the input and output options for the Radial StageBug SB-2?
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The Radial StageBug SB-2 offers a 1/4" input, a 1/4" input/thru for direct connection to amplifiers, and an XLR output for balanced signal routing to mixing consoles.
Videos
Want 2 Check
DI comparison on Bass - Passive Direct Box: Radial Pro DI vs. Radial Stage Bug SB-2 - Want 2 Check
Reviews
PROS
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Transparent, noise-free sound quality
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Compact design fits well on pedalboards and in instrument cases
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Reliable passive design ideal for high-output instruments
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Versatile link and ground lift options
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Effectively merges stereo signals to mono
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Protects instruments from phantom power issues
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High build quality, feels solid and durable
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Handles both active and passive pickups exceptionally
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Lightweight yet robust, suitable for live gigs
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Enhances sound clarity for acoustic instruments
CONS
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Some reports of exterior components rusting quickly
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Radial StageBug SB-2 Passive Direct Box.
Comparisons
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The Radial StageBug SB-2 is $30 cheaper than the Pro DI, appealing to those seeking cost-effective options without significant performance trade-offs.
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The Whirlwind IMP 2 is seen as an entry-level DI, often used in budget setups but not on professional stages, emphasizing the importance of transformer quality for sound fidelity.
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The Radial JDI is preferred by professionals for its superior sound quality over the Whirlwind IMP 2, highlighting the significance of investing in better transformers for high-fidelity audio.
Source
Features and functionality
Use cases and applications
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Ideal for live use in small bars and clubs, the StageBug SB-2 is effective for acoustic guitars and keyboards.
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Users find the StageBug SB-2 reliable for emergency situations, capable of connecting a P Bass directly to FoH and maintaining sound quality in case of other gear failures.
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The Whirlwind Director is favored for non-space-constrained setups, indicating its utility where size isn't a primary concern but reliability is.
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Value and pricing
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Some users suggest saving on passive DIs, like the StageBug, to allocate funds for other gear like the Radial JDX, enhancing overall setup versatility.
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The IMP 2's affordability is linked to its smaller, lighter transformer, which impacts sound quality, making it a budget-friendly yet performance-limited option.
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User experience
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The passive design of the StageBug SB-2 eliminates the need for batteries, reducing the risk of power-related failures during performances.
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5.0 out of 5
Based on 0 Reviews and 2 Ratings
Artist usage
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Used With
Based on how musicians on Equipboard use Radial StageBug SB-2 Passive Direct Box, it is most commonly used with the following gear.
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