Boss Waza Tube Amp Expander Core - Front
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Boss Waza Tube Amp Expander Core - Front Boss Waza Tube Amp Expander Core - Back Boss Waza Tube Amp Expander Core - Front Angle Boss Waza Tube Amp Expander Core - Top

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Boss Waza Tube Amp Expander Core


$769.99

In Stock - Free Shipping Eligible


The Boss Waza Tube Amp Expander Core is the ultimate problem-solver box for the modern guitarist, combining a professional-grade reactive load, a 30-watt power amp, and an incredibly deep set of studio tools into a compact, desktop-friendly unit.

At its heart, the Reactive Load lets you run your favorite tube amp, up to 100 watts, at its sweet spot while keeping it at bedroom levels. Utilizing Boss's advanced Tube Logic, it retains the  feel, response, and dynamic interaction between your amp and its speaker.

Packed with 22 meticulously captured speaker cabinet emulations, five mic types, and 64 slots for your own third-party IRs, you can run pristine, mic'd up cab sounds straight to the sound guy or your interface via the stereo XLR outputs, or directly over USB-C.

The built-in 30 watt Class AB power amp is perfect for home practice, allowing you to get that roaring amp tone at bedroom levels through your favorite speaker cab. The Air feature provides a natural room sound to the headphone output. With built-in effects like compression, delay, and reverb, plus a Mix Assist tool applies one of three sound contour curves with variable transient control to sit in the mix just right. Overall, a versatile tool for recording, live play, or at home jams.

From Boss

  • Professional direct tube amp recording solution driven by the advanced Tube Logic design philosophy
  • Selectable reactive load retains your amp’s natural feel and interactive response
  • Supports most tube amps rated up to 100 watts*
  • Built-in 30-watt reactive drive power amplifier with continuous volume control
  • Mix Assist function optimizes the recorded sound to dramatically improve production quality
  • Air Feel feature recreates “amp-in-room” sound with natural depth, dimension, and ambience
  • Choose from 22 BOSS cabinet emulations and five selectable mic types (two simultaneously)
  • 64 user IR slots supporting mono/stereo WAV files up to 500 ms and 32-bit floating point/96 kHz resolution
  • Comes preloaded with 10 Celestion® Digital IRs
  • Use up to two third-party IRs simultaneously and smooth the sound with onboard time alignment tools
  • Premium stereo effects, including compression, parametric/graphic EQ, delay, and reverb
  • Ten recallable rig settings for storing favorite setups
  • External effect loop with selectable series/parallel operation
  • Balanced XLR stereo line outputs for connecting to mixers and recording devices
  • USB-C for audio recording and playback with computers and mobile devices
  • Headphones output for quiet practice with cranked-up amp tones and immersive Air Feel ambience
  • Speaker output for connecting an external cabinet (supports 4 ohms and higher)
  • MIDI input for advanced control
  • Dedicated WAZA Tube Amp Expander Core Editor (macOS/Windows) for editing and IR loading
  • Optional Bluetooth® Audio MIDI Dual Adaptor (BT-DUAL) enables wireless audio streaming from music apps and remote editing/IR loading with the mobile version of the WAZA Tube Amp Expander Core Editor (iOS/Android)

Need More Info?

We take the time to set up every new guitar, mando, bass, uke, or banjo for every player, whether it was purchased here in Lawrence, Kansas or on our website. Large retailers are content to ship you a guitar right off of the warehouse shelf, while we take pride in the fact that your new instrument will be set up to be truly ready to play - for you.

Call us at 800-747-9980 or send us an email at info@massstreetmusic.com - we're here to help! All of us at Mass Street Music are musicians, and we're dedicated to helping you find exactly what you're looking for. You can also check out our Staff Page if you'd like to email one of us directly.

Qualifying new or used gear gets shipped to you for FREE via our favorite carriers, Fed Ex – ground, or USPS, to all 'lower 48' U.S. states. We also offer a 7 day return policy. Alaska and Hawaii, expedited shipping, international shipping are more. We ship around the globe too. Read more about our Shipping.