Hear how Boss plans to change the tube amp game with this in-studio Waza Tube Amp Expander demo

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Simon McBride puts reactive load box through its paces at London’s Metropolis Studios

Boss has set out to “modernise the tube amp experience” with the Waza Tube Amp Expander, and we were among the first to experience the innovative reactive load box first-hand in a studio environment, which we’ve captured in this exclusive demo video.

The clip features blues-rock virtuoso Simon McBride providing the licks, while Boss European sales manager Matt Knight guides you through the box’s formidable array of features.

The Waza Tube Amp Expander combines a host of functionality in one unit, including a variable reactive load, active analog power stage, mic’d cab sim, IR loader and USB recording interface.

There are also compressor, delay and reverb effects onboard, with the option of deep editing via software, plus a wide range of connections and the ability to store 10 onboard setups.

The Waza Tube Amp Expander is available from July for £1,143. See Boss for more info.

Michael Astley-Brown
Michael Astley-Brown

Mike is Editor-in-Chief of GuitarWorld.com, in addition to being an offset fiend and recovering pedal addict. He has a master's degree in journalism, and has spent the past decade writing and editing for guitar publications including MusicRadar, Total Guitar and Guitarist, as well as a decade-and-a-half performing in bands of variable genre (and quality). In his free time, you'll find him making progressive instrumental rock under the nom de plume Maebe.