Detail 01
1/4-inch input with thru output
Allows an instrument input plus a parallel feed to a tuner or on-stage amplifier.
Product detailSKU #1500000285317
Radial EngineeringStageBug SB-1 Compact Active Direct Box
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Independent shopping perspective
The Korena take
StageBug SB-1 is a compact active direct box for an instrument signal headed to a PA. Plug into the 1/4-inch input, use the thru output for a tuner or on-stage amplifier, and send the buffered, balanced signal onward over long cable runs. Its active circuit converts the instrument’s high-impedance signal to low impedance to reduce susceptibility to noise. The unit runs from 48V phantom power, so there are no batteries or separate external supply to manage.
Strong match
Who this is for
- Sending an instrument to a PA while keeping a thru connection for a tuner or stage amplifier.
- Long instrument-to-PA cable runs where a buffered, balanced low-impedance signal is needed.
Consider the trade-offs
When to look elsewhere
- Setups that cannot provide the required 48V phantom power.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Active high-to-low impedance conversion
Reduces the signal’s susceptibility to noise before it is buffered and balanced.
Detail 03
48V phantom power
Powers the SB-1 without batteries or a separate external supply.
Final check
Know before you order
- 01Ensure the PA connection can supply 48V phantom power.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can I connect a tuner or amplifier as well as the PA?
Yes. The thru output can feed a tuner or an on-stage amplifier while the balanced signal goes to the PA.
02Does the SB-1 use batteries?
No. It is powered by 48V phantom power and needs no batteries or external supply.
