¡Obtenga asesoría en español!  Llámenos hoy a (800) 222-4701

Boss Waza Tube Amp Expander Core , $699.99 - Add to Cart Skip to Product Information

Boss Waza Tube Amp Expander Core

100W Amplifier Attenuator and Cabinet Emulator with Reactive Load, Air Feel, Mix Assist, IR Loader, Stereo FX, and USB Output
Item ID: TAECore
Boss Waza Tube Amp Expander Core
In Stock!

Model:
Ask An Expert Our Expertly trained Sales Engineers are ready to help! What is a Sales Engineer?
Sweetwater Gear Exchange

Have one to sell?
Check out Sweetwater's Gear Exchange!
Learn More

Boss Waza Tube Amp Expander Core
In Stock!

Harness Your Amp’s Full Capacity — at Any Volume

This article was Written By

Our Product Research Team

Get to know them!

There’s only so much you can do with your tube amplifier in a low-volume environment — unless you have a BOSS Waza Tube Amp Expander Core. The Core leverages BOSS Tube Logic-driven attenuation and cutting-edge cabinet emulation to give you no-holds-barred access to your tube amp’s full sonic potential. Furthermore, a selectable Reactive Load control ensures natural amp-like performance with combos and full-blown stacks alike. The Core houses 32 cabinet emulations, including Celestion Digital impulse responses, along with 64 user IR slots, five selectable mic types, and a well-stocked arsenal of premium stereo effects. Moreover, you get 10 recallable Rig settings for storing your favorite patches. Mix Assist and Air Feel functions are on hand to help you dial in your overall sound, which you can then output over USB or stereo Line Out jacks for recording. Integrating your pedals and outboard gear is no problem for the Core, thanks to its flexible external effects loop, and you can use the To Speaker output to incorporate real-world cabinets into your setup. You also get a Phones output for silent practice sessions. Complete with intuitive software editing and IR loading, the Waza Tube Amp Expander Core enables players to unlock the full might of their amplifiers with zero worries about noise compliance.

Note: The BOSS Waza Tube Amp Expander Core does not support Mesa/Boogie Dual or Triple Rectifier amplifiers. Please call your Sweetwater Sales Engineer if you have questions.

Robust attenuation and flawless cab emulation

Even if you love it loud, the Waza Tube Amp Expander Core ensures that your family, roommates, or neighbors don’t have to pay the price for your penchant for cranked-up tones. Rated for tube amplifiers up to 100 watts, the Core delivers efficient power attenuation driven by BOSS Tube Logic. It includes a selectable Reactive Mode knob with Combo and Stack settings to retain your amp’s natural characteristics — no speaker required. The Core houses 32 true-to-life cabinet emulations, including Celestion Digital miked impulse responses. Moreover, 64 user IR slots are available, with support for both mono and stereo WAV files up to 32-bit float/96kHz. You get five selectable mic types, plus the ability to mix up to two mic signals, allowing you to craft your ideal studio-quality tone, as well as an ear-grabbing cache of premium stereo effects, including compression, EQ, delay, and reverb. Finally, 10 recallable rig settings make storing and recalling your favorite setups easy.

Houses all the right connections

Here at Sweetwater, we quickly noted the extensive connectivity of the BOSS Waza Tube Amp Expander Core. For starters, you get balanced L and R Line Out jacks, enabling you to pipe a clean line-level analog signal to your console or audio interface — in stereo. Furthermore, a USB port allows you to skip the audio interface altogether and output your processed signal directly to your computer for recording, patch editing, and IR loading. The Tube Amp Expander Core’s flexible FX Loop jacks allow you to select between both series or parallel operation and a -10dBV or +4dBu analog signal level. Beyond that, you get a Phones output for quiet practice with cranked-up sound and immersive ambience, as well as a To Speaker jack for connecting to a physical speaker cabinet.

BOSS Waza Tube Amp Expander Core Features:

  • Leverages BOSS Tube Logic-driven attenuation and cutting-edge cabinet emulation to access to your tube amp’s full potential
  • Rated for tube amplifiers up to 100W
  • Reactive Mode knob with Combo and Stack settings retain your amp’s natural characteristics without a speaker cab
  • 32 true-to-life cabinet emulations with Celestion Digital miked impulse responses
  • 64 user IR slots with support for mono/stereo WAV files up to 32-bit float/96kHz
  • 5 selectable mic types with the ability to mix up to 2 mic signals
  • Premium stereo FX with compression, EQ, delay, and reverb
  • 10 recallable Rig settings for storing your favorite patches
  • Mix Assist function helps optimize your sound for recording and mixing
  • Air Feel function provides natural-sounding room ambience
  • Balanced L and R Line Out jacks route a clean stereo line-level analog signal to your console or audio interface
  • USB port outputs your processed signal directly to a computer for recording, patch editing, and IR loading
  • Flexible FX Loop jacks support series/parallel operation and -10dBV/+4dBu analog signal levels
  • Phones output facilitates quiet practice with cranked-up sound and immersive ambience
  • To Speaker jack enables connection to a physical speaker cabinet
  • Optional Bluetooth Audio MIDI Dual Adapter enables wireless editing via smartphone (BT-DUAL adapter sold separately)

Warranty Info

Sweetwater's FREE 2-Year Total Confidence Coverage Warranty

Extra peace of mind at no extra cost.

  • Save money with FREE parts and labor
  • Get back to making music with the industry's fastest turnaround time
  • Fix it the first time with our award-winning, factory-certified Service Department
Learn More about Total Confidence Coverage

Offer applies only to single-receipt qualifying purchases. Select manufacturers may require that only the manufacturer’s products qualify towards the minimum purchase amount needed to be eligible for promotional financing. Otherwise, an invoice that meets the minimum purchase amount and contains at least one qualifying manufacturer product is eligible for promotional financing. No interest will be charged on promo purchase balance, and equal monthly payments are required on promo purchase until it is paid in full. The payments equal the amount financed divided by the number of months in the promo period, rounded up to the next whole dollar. These payments may be higher than the payments that would be required if this purchase was a non-promo purchase. During the last month(s) of the promo period the required monthly payment may be reduced due to the prior months’ rounding. Regular account terms apply to non-promo purchases. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

Offer applies only to single-receipt qualifying purchases. No interest will be charged on the promo balance if you pay it off, in full, within the promo period. If you do not, interest will be charged on the promo balance from the purchase date. The required minimum monthly payments may or may not pay off the promo balance before the end of the promo period, depending on purchase amount, promo length and payment allocation. Regular account terms apply to non-promo purchases and, after promo period ends, to the promo balance. New Accounts as of 07/31/2025: Purchase APR is 34.99%. Penalty APR is 39.99%. Min Interest Charge is $2. Existing cardholders: See your credit card agreement terms. Subject to credit approval.

The estimated required monthly payment shown which excludes taxes and delivery equals the amount financed divided by the number of months in the promo period, rounded up to the next cent. During the last month(s) of the promo period the required monthly payment may be reduced due to this rounding. These payments apply only with the financing offer shown. If you make these payments by the due date each month, you should pay off this amount financed within the promo period, if it is the only balance you are paying off. If you have other balances on your account, this payment will be added to any other minimum monthly payments.

Applies only to select items from this manufacturer. Ask your Sweetwater Sales Engineer for more details.