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Radial SB-5 Compact Stereo DI For Computers With Sidewinder Attached Cable

Product Code: RASB-5
Manufacturer: Radial

Our Price £91.99INC

Available within 2-5 working days

The Radial Stage Bug SB-5 is a compact stereo direct box designed to accommodate laptop computers, tablets and other consumer audio products when amplifying the signal through a PA system.

The passive design begins with an integrated input cable that connects from the headphone out via a flexible 1.5m (5') cable that is terminated with a standard 3.5mm (1/8") stereo connector. The cable is secured via a clamping strain relief and is wrapped using the sidewinder cleat for easy storage. This of course eliminates having to locate a cable making it easier to deploy in fast paced work environments.

Inside, the unbalanced stereo signal is sent to a pair of custom wound transformers which balances the signals for long cable runs - upwards to 100 meters (300'), without noise. Transformers further benefit by isolating the computer from the PA system to help eliminate hum and buzz caused by ground loops. This is augmented with a ground lift switch to further reduce ground contamination.

A choice of output connectors is available including a stereo set of ¼" TRS jacks for full stereo operation or an XLR out that automatically sums the left-right program material to mono. This can save valuable channels on the PA system and makes setup easier in situations where full stereo reproduction is not required. A -15dB input pad may be engaged to reduce sensitivity and enable extra high output sources to be connected without distortion.

These features combine to make the SB-5 the perfect tool-kit DI for the AV technician, media manager or traveling musician equipped with a computer.

Key Features

  • Stereo direct box for laptop computer
  • Integral 1.5m cable with sidewinder cleat
  • Transformer isolation eliminates noise
  • Plug & play easy to use – no power required
Audio circuit type: Passive, transformer based
Number of channels: Two channels, mono or stereo outputs
Frequency response: 20Hz ~ 20KHz (± 1dB)
Dynamic range: 100dB
Maximum input: +20dB
Total harmonic distortion: 0.01% @ 1kHz
Phase deviation: 2° @ 100Hz; 5° @ 50Hz
Input impedance: 40k Ohms, unbalanced
Output impedance: 2.8k Ohms, balanced


Transformer: Custom design
Input pad: -10dB
Auto Merge: Sums left & right sources to mono at XLR
Ground lift: Disconnects pin-1 at 1/4" TRS outputs
XLR configuration: AES standard (pin-2 hot)
Input connector: 3.5mm (1/8") integrated 1.5m (5') cable
Output connectors: 1/4" TRS stereo / XLR-M mono merge


Construction: 14 gauge steel chassis & outer shell
Finish: Durable powder coat
Size: (L x W x D) 4.5" x 1,85" x 1.35" (114mm x 47mm x 34mm)
Weight: 0.55 lbs (250 grams)
Shipping Size: (L x W x D): 8" x 5" x 3" (203mm x 127mm x 76mm)
Shipping Weight: 0.8 lbs (365 grams)
Power: Passive, no power required
Conditions: For use in dry locations only between 5°C and 40°C

Warranty:Radial 3-year, transferable

  • UK Based Company
  • Part of A.C. Entertainment Technologies - has its trading origins over 45 years ago
  • UK Stock Holding
  • UK Warranty
  • Free Delivery Over ?150
  • Great Prices
  • Over 20 Years' Experience
  • Specialist Advice
  • Fast Delivery
  • Finance Options Available

With years of experience supplying Businesses, Government Organisations, Charities, Schools, Colleges and Universities, we invite you to take advantage of our knowledge to help you make an informed choice, ensuring you are purchasing the best music products for your needs. With specialists in PA Systems, Pro Audio & Live Sound equipment on hand to answer calls and emails, you're in the best possible hands.

Contact us now to discuss your requirements or to request a quotation. Additional discounts may apply for educational establishments or size and value of order.

Purchase orders can be sent directly to or apply for your cash or credit account here. Terms and conditions will apply.

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