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Radial Engineering Loopbone Master Effects Loop Controller
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Radial Engineering Loopbone Master Effects Loop Controller

Item #: MC.R8007078

List Price: $350.00
Our Price:
$259.99 with Free Shipping

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by Radial Engineering

Effects Loop Controller. Made by Radial Engineering. (MC.R8007078)

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Found in:  Guitar Effects - Switches


Take control of your pedalboard! The Loopbone is a compact, easy to use switcher that allows the guitar player to insert, remove and combine two effect pedal chains with footswitch ease. This is particularly advantageous when using older pedals that can add noise and load problems while in the signal chain. As well, the Loopbone incorporates Radial's superb VariBoost™ variable gain power booster for a clean signal increase or as post-effects boost for soloing.


  • Master control for pedal boards
  • Two separate effects loops plus SlingShot™ remote
  • Exclusive Drag™ control pickup load correction
  • Built-in VariBoost™ variable gain power boost circuit
  • Class-A circuit for highest quality audio

To ensure the natural tone of your instrument is maintained, no signal degrading op-amps or chips are used - only 100% discreet components and our highly acclaimed Class-A circuit, which combine to achieve Radial's trademark transparency and exceptional dynamics. The Loopbone also features Radial's unique Drag™ control pickup load correction circuit that allows the restoration of a proper 'amplifier' impedance load which is lost when you plug a guitar into effect pedals or other buffered devices. In addition, the Loopbone brings even more to your pedalboard - a separate 'always-on' tuner out circuit that allows 'on-the-fly' tuning without adding noise or load and perhaps the most innovative feature of all, Slingshot™ remote switching. Slingshot allows switching of amp channels or other features, even other devices such as the Radial Headbone or Cabbone switchers, from the Loopbone. Check out 'The Power of Slingshot' for details.

Features & Specifications

The Radial Loopbone combines several innovative features into one rugged, compact unit that easily fits on a pedalboard. Controls and switches have been optimized for maximum flexibility and ease of use while eliminating unnecessary clutter on stage.

Once you've added a Loopbone to your rig, you will truly appreciate it's size, versatility and attention to detail. For example: the opto-coupler switching that brings in and out each FX loop without annoying pops or clicks like other switchers and the recessing of the boost gain and Drag™ controls that prevents the accidental 'bumping' of your optimal settings.

For quick tune-ups, Loopbone's always-on tuner output is buffered to stay out of the signal path so it does not affect tone in any way.

Last but not least is the multi-functionality that is provided by Loopbone's Slingshot™ output and 'Remote Output Assign' switches.

Using the Loopbone

Radial's design philosophy acknowledges that for a device to be useful, it should be easy to use - even if the internal workings are complex. The Loopbone is a good example of how this doctrine can be implemented by reducing the number switches and clutter to an absolute minimum.

Connecting the Loopbone's power adapter turns the unit on. Plug in your guitar, amp and effects and you are ready to go. The LED indicators will show you the currently selected FX loop(s), and the Boost circuit status - on or off.

The front panel Drag™ control potentiometer adjusts to exactly match the pickup load you would get if your guitar was plugged directly into your amp. The VariBoost™ gain can be pre-adjusted to give you zero to +15dB of boost when you step on the footswitch.

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