by Jef | Approximate reading time: 2 Minutes
Boss Waza Tube Amp Expander

Boss Waza Tube Amp Expander  ·  Source: Boss


Coming hot on the heels of news about two new combo amps, Boss has come up with something called the Waza Tube Amp Expander, slated for release in early 2019. The product is designed to be a kind of “command centre” for valve amps. Sounds interesting, but what does it all mean?


Boss Waza Tube Amp Expander

The Boss Waza Tube Amp Expander is designed to give you all the tools useful for guitarists with a valve amp. It combines a variable reactive load, active analogue power stage, a mic cabinet simulator, IR (Impulse Response) loader and a very handy USB recording interface. It also manages to squeeze in a compressor, delay and reverb effects.


Boss Waza Tube Amp Expander

Expand your amp’s possibilities!


Reactive Load

With 16 settings available for the reactive load, it should be able to handle a variety of impedances. This should make it compatible with a wide range of valve amps up to 150W output. There are also four EQs, plus the ability to recall up to 10 of your favourite rig setups.

The Waza Tube Amp Expander has its own built-in 100-watt Class AB power amplifier, with parallel speaker outputs for up to two external cabs. There’s also an onboard external effects loop, which can run in either Series or Parallel mode. Balanced XLR line outputs and a headphone output are provided, too. That adds up to a lot of input/output connectivity that could really make your existing valve amp far more flexible.

Expand, Record and Gig

I think this new product is a fantastic idea and could make your guitar amp set-up far more flexible. It could be be a Swiss Army knife for your rig. We should be seeing the Boss Waza Tube Amp Expander at Winter NAMM 2019 and I’m really looking forward to hearing what it can do. The specifications sound pretty impressive – let’s just hope it isn’t too expensive…



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Boss Waza Tube Amp Expander

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5 responses to “NAMM 2019: Boss Waza Tube Amp Expander – A Swiss Army knife for valve amps?”

    Unapologist says:

    Sounds like what we do need for our older valve only amps. Can’t wait to hear/test this myself. The thing does look utterly boring though… plus the price will probably be more than we hope for… oh well, bring on WinterNAMM

      Jef says:

      If the price is right, then I think it could be great. Yes, it looks plain. But hell if it works and does all it claims, then I would buy one in a heartbeat!

    Name* says:

    I love the idea of this and it looks like it might do what the OX box does so will be very curious to see how it stands up.

    Luke says:

    Price will be the important part, I need a new audio interface and was going to go uad but this has me waiting now

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