Radial Engineering StageBug SB-6

Stereo Isolator

  • Eliminates hum caused by mass loops
  • For balanced and unbalanced signals
  • Linear frequency response of 20 - 20,000 Hz
  • 2x 6.3 mm jack inputs
  • 2x 1/4" jack outputs
  • Switchable ground lift for both channels
  • Switchable pad
  • Switchable phase for the left channel
  • Robust metal housing

Further information

Multi-Channel Unit Yes
Active / Passive Passive
19" No
Pad switchable Yes
Gnd/Lift switchable Yes
Powered by battery No
Speaker Simulation No

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4.7 / 5.0
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7 written ratings Read all reviews
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Great problem-solving box

FastEddy, 10.11.2015
Sometimes you just need isolation without level attenuation - just easy interfacing between equipment that is suffering from ground loop issues due to being on separate ring mains. I've solved issues with humming monitors, FOH speakers and guitar amps with this. It now lives on my pedalboard, to help run balanced lines from a guitar rig to a rack processor and back, TS->TRS->TS, which reduces unbalanced line interference considerably. I also use it at numerous venues, where lighting desks, dimmer controls and even dishwashers are all spewing noise onto the mains. Some of this is cleared up by RF filters, but used in tandem with the Stagebug, you can eliminate just about anything (excl. single coil noise - nothing can save you from this, except humbuckers!). Another use was to put this between an active acoustic preamp and an A&H desk's Inst input, as I had run out of DI channels but still wanted isolation from the desk. Useful PAD and polarity etc. should you need it. Managed to fit this beneath my pedaltrain so it is out of the way. Very solid and well made, and well worth the money, even if you just keep it in your toolkit until it's needed.
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Total
features
sound
quality

This quality !! C:

TinoR, 04.03.2016
This compact helper was my first product from Radial Engineering. I use the box in various applications, both in the live as well as recording area.
In short, great features. And an even better processing as well as sound fidelity.
(I only replaced the moss rubber surface with a few high quality rubber feet for aesthetic reasons.)


Since I personally nothing against jack plug and you have anyway always balanced synonymous adapters on XLR, this device is in my opinion a small and yet so great helper in many, recurring situations, for example, for eliminating humming loops, than -15 DB pad, phaser or simply for (de) balancing audio signals. All these tasks the SB-6 does to my full satisfaction.

To the function:
There is no relevant level loss through the box.
The transducers behave completely neutrally in the line mode. When the frequency response was measured, a very similar curve was obtained as indicated on the manufacturer's side: No deviations of +/- 0.05 dB in the listening range from 20 Hz to 20 kHz.


My rating: 10/10, I would buy the little gray spider again? But I do not need a second, and the first one will probably survive me. ;)
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119 €
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