The Radial Engineering StageBug SB-15 is a premium Class-A signal buffer and power conversion solution designed for guitarists, bassists, pedalboard enthusiasts, and professional musicians who demand uncompromised tone quality. Featuring a 100% discrete Class-A FET buffer circuit and Radial's unique Drag™ Control technology, the SB-15 preserves the natural character of your instrument while eliminating signal degradation caused by long cable runs and multiple effect pedals.
In addition to serving as a high-performance signal buffer, the SB-15 also functions as a 9V to 15V DC converter, allowing musicians to power compatible Radial and Tonebone pedals directly from standard pedalboard power supplies. Compact, rugged, and pedalboard-friendly, the StageBug SB-15 is an essential tool for maintaining pristine tone and reliable pedalboard performance.
As pedalboards become larger and more complex, signal loss, tone degradation, and unwanted noise can significantly affect overall sound quality. The StageBug SB-15 solves these common problems by buffering the instrument signal at the beginning of the signal chain, ensuring maximum clarity and consistency throughout the entire pedalboard.
Unlike conventional buffers that rely on integrated circuits (ICs), the SB-15 utilizes a 100% discrete Class-A FET design that delivers a warmer, more natural response with minimal phase distortion. The built-in Drag™ Control circuit allows players to fine-tune the input load, recreating the feel and tonal response of plugging directly into an amplifier.
Once buffered, the signal becomes more resistant to hum, buzz, radio frequency interference (RFI), and electromagnetic interference (EMI), enabling pedal chains and cable runs up to 15 meters (50 feet) without sacrificing audio quality.
As an added bonus, the SB-15 can combine two standard 9V power outputs and convert them into a regulated 15VDC output, making it easy to power Radial Tonebone pedals and other compatible 15V devices from your existing pedalboard power supply.
Provides transparent signal buffering while preserving the natural tone and dynamics of your instrument.
Simulates the feel and tonal response of connecting directly to an amplifier for a more natural playing experience.
Prevents high-frequency signal degradation caused by long cables and multiple pedals.
Maintains signal integrity across large pedalboards and extended cable runs.
Minimizes hum, buzz, radio frequency interference, and electromagnetic noise.
Converts dual 9V outputs from a pedalboard power supply into a regulated 15VDC output.
Ideal for powering 15V Radial and Tonebone effects pedals without requiring dedicated adapters.
Small footprint makes installation easy on crowded pedalboards.
Built with heavy-duty 14-gauge steel for touring, studio, and professional stage use.
Restore lost tone and maintain consistent signal quality throughout large pedal chains.
Preserve low-frequency response and dynamic range for passive and active bass setups.
Ensure clean, reliable audio transmission on stage while reducing noise and interference.
Capture the true sound of your instrument with minimal coloration and maximum signal integrity.
Maintain clear instrument signals over longer cable runs to stage boxes and mixers.
Convert dual 9V power outputs into a regulated 15V supply for compatible Radial and Tonebone devices.
Guitarists • Bass Players • Pedalboard Builders • Worship Musicians • Recording Studios • Live Sound Engineers • Touring Professionals • Professional Audio Systems
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