Boss Waza Tube Amp Expander - Reactive Attenuator
Discover the BOSS W-TAE CORE, a compact recording and attenuation solution that enhances your tube amps with its reactive load and high-end speaker cabinet simulations.
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Tame your tube amp without sacrificing your "Tone".
We all know the problem: your 100-watt tube amp sounds divine... but only when the volume is at 8. At that level, either your neighbors call the police, or the sound engineer at the bar refuses to play your music.
At Garage à Musique , we have the ultimate solution: the BOSS Waza Tube Amp Expander .
This isn't just a power attenuator. It's a complete command center. It lets you push your power tubes into saturation while precisely controlling the output volume, from a bedroom whisper to a stadium roar.
Why is the Waza Tube Amp Expander unique?
Technologie "Reactive Load" : Contrairement aux atténuateurs passifs qui écrasent la dynamique, la section de charge réactive du Waza interagit avec votre ampli exactement comme un vrai haut-parleur. Vous gardez la sensation de jeu, le "sag" et la réponse tactile.
Boucle d'Effets pour Amplis Vintage : Vous avez un vieux Plexi ou un Bassman sans Master Volume et sans boucle d'effets ? Le Waza résout ça. Il intègre une boucle d'effets externe post-ampli. Vous pouvez enfin mettre vos délais et réverbes après la distorsion de vos lampes, sans modifier votre ampli.
Simulateur de Cab (IR) & Interface USB : Enregistrez directement dans votre logiciel (DAW) via USB avec des réponses impulsionnelles (IR) de qualité studio. Plus besoin de micros.
Un Ampli dans la Boîte : Il possède son propre étage de puissance classe AB de 100 watts. Cela signifie que vous pouvez prendre un petit ampli de 5 watts, le brancher dans le Waza, et l'amplifier à 100 watts sur scène via vos cabinets !
Technical Specifications
| Characteristic | Technical Details |
| Kind | Reactive Load, Attenuator, Audio Interface |
| Permissible Power | Up to 150 Watts |
| Input Impedance | Adjustable (4, 8, 16 Ohms) |
| Integrated Amplifier | 100 Watts (Class AB) for powering cabinets |
| Reactive Charge | Tube Logic Technology (Resonance and Presence Adjustment) |
| Integrated Effects | Compressor, Delay, Reverb, EQ (Accessible via software) |
| Effects Loop | Serial/Parallel (Selectable) |
| Exits | 2x XLR (L/R), Headphone, Speaker Out (2x) |
| Login | USB (Audio Interface), MIDI In/Out |
| Software | Dedicated Mac/PC editor for loading IRs and settings |
| Dimensions | 380 mm x 296 mm x 110 mm |
| Weight | 6.8 kg |
Comparative Table: BOSS Waza vs. The Competition
It's often the final showdown: BOSS vs. Universal Audio. Here's how they compare.
| Model | BOSS Waza Tube Amp Expander | Universal Audio OX Box | Two Notes Torpedo Captor X |
| Concept | Live & Studio Control Station | Pure Studio & Recording | Compact & Portable |
| Effects Loop | YES (Big advantage) | No | No |
| Volume Control | Continuous (Built-in 100W Amplifier) | In stages (Passive attenuator) | only 3 levels |
| Impedance Tuning | 4 / 8 / 16 Ohms (Switch) | 4 / 8 / 16 Ohms | Fixed (Must buy the correct version) |
| Reactive Charge | Adjustable (Resonance-Z) | Fixed | Fixed |
| Software | Deep Editing + BOSS Effects | Very good iPad/Desktop app | Torpedo Remote Mobile App |
| Verdict | Best for live performances and vintage amps. | The king of the “plug & play” studio. | The budget/travel solution. |
FAQ – Most Frequently Asked Questions
We analyzed forums and Google searches to answer crucial questions about Waza TAE.
1. Does this change the sound of my amp?
That's BOSS's mission: transparency. Thanks to adjustable reactive load (the Resonance-Z and Presence-Z knobs), you can sculpt the response to perfectly match how your speaker reacts. It's the most transparent attenuator on the market.
2. Can I use the Waza without connecting a speaker cabinet?
Yes! It's a safe "Load Box". You can unplug your cabinet and play silently with headphones or record via USB without damaging your amp head.
3. What is the purpose of the integrated 100W amplifier? Isn't it redundant?
No, it's genius. The Waza absorbs the power from your tube amp (to create the sound), then uses its own dedicated amplifier (Solid State Class AB) to send the volume you want to your speakers. This is what allows for linear volume control, rather than incremental adjustments.
4. Can I use third-party IR (Impulse Responses)?
Absolutely. The software allows you to import your own IRs (Celestion, York Audio, etc.) if you don't like the factory ones. There are four slots for user IRs.
5. Does the effects loop work with all amps?
Yes. You plug the speaker output of your amp into the Waza. The Waza then inserts its effects (or your pedals connected to its effects loop) after the sound has been created by your amp. It's fantastic for adding a clean delay to a distorted Marshall amp.
6. Is it compatible with bass amps?
Yes, as long as the amp's power doesn't exceed 150 watts. It's excellent for recording a distorted tube bass.
Tame your tube amp without sacrificing your "Tone".
We all know the problem: your 100-watt tube amp sounds divine... but only when the volume is at 8. At that level, either your neighbors call the police, or the sound engineer at the bar refuses to play your music.
At Garage à Musique , we have the ultimate solution: the BOSS Waza Tube Amp Expander .
This isn't just a power attenuator. It's a complete command center. It lets you push your power tubes into saturation while precisely controlling the output volume, from a bedroom whisper to a stadium roar.
Why is the Waza Tube Amp Expander unique?
Technologie "Reactive Load" : Contrairement aux atténuateurs passifs qui écrasent la dynamique, la section de charge réactive du Waza interagit avec votre ampli exactement comme un vrai haut-parleur. Vous gardez la sensation de jeu, le "sag" et la réponse tactile.
Boucle d'Effets pour Amplis Vintage : Vous avez un vieux Plexi ou un Bassman sans Master Volume et sans boucle d'effets ? Le Waza résout ça. Il intègre une boucle d'effets externe post-ampli. Vous pouvez enfin mettre vos délais et réverbes après la distorsion de vos lampes, sans modifier votre ampli.
Simulateur de Cab (IR) & Interface USB : Enregistrez directement dans votre logiciel (DAW) via USB avec des réponses impulsionnelles (IR) de qualité studio. Plus besoin de micros.
Un Ampli dans la Boîte : Il possède son propre étage de puissance classe AB de 100 watts. Cela signifie que vous pouvez prendre un petit ampli de 5 watts, le brancher dans le Waza, et l'amplifier à 100 watts sur scène via vos cabinets !
Technical Specifications
| Characteristic | Technical Details |
| Kind | Reactive Load, Attenuator, Audio Interface |
| Permissible Power | Up to 150 Watts |
| Input Impedance | Adjustable (4, 8, 16 Ohms) |
| Integrated Amplifier | 100 Watts (Class AB) for powering cabinets |
| Reactive Charge | Tube Logic Technology (Resonance and Presence Adjustment) |
| Integrated Effects | Compressor, Delay, Reverb, EQ (Accessible via software) |
| Effects Loop | Serial/Parallel (Selectable) |
| Exits | 2x XLR (L/R), Headphone, Speaker Out (2x) |
| Login | USB (Audio Interface), MIDI In/Out |
| Software | Dedicated Mac/PC editor for loading IRs and settings |
| Dimensions | 380 mm x 296 mm x 110 mm |
| Weight | 6.8 kg |
Comparative Table: BOSS Waza vs. The Competition
It's often the final showdown: BOSS vs. Universal Audio. Here's how they compare.
| Model | BOSS Waza Tube Amp Expander | Universal Audio OX Box | Two Notes Torpedo Captor X |
| Concept | Live & Studio Control Station | Pure Studio & Recording | Compact & Portable |
| Effects Loop | YES (Big advantage) | No | No |
| Volume Control | Continuous (Built-in 100W Amplifier) | In stages (Passive attenuator) | only 3 levels |
| Impedance Tuning | 4 / 8 / 16 Ohms (Switch) | 4 / 8 / 16 Ohms | Fixed (Must buy the correct version) |
| Reactive Charge | Adjustable (Resonance-Z) | Fixed | Fixed |
| Software | Deep Editing + BOSS Effects | Very good iPad/Desktop app | Torpedo Remote Mobile App |
| Verdict | Best for live performances and vintage amps. | The king of the “plug & play” studio. | The budget/travel solution. |
FAQ – Most Frequently Asked Questions
We analyzed forums and Google searches to answer crucial questions about Waza TAE.
1. Does this change the sound of my amp?
That's BOSS's mission: transparency. Thanks to adjustable reactive load (the Resonance-Z and Presence-Z knobs), you can sculpt the response to perfectly match how your speaker reacts. It's the most transparent attenuator on the market.
2. Can I use the Waza without connecting a speaker cabinet?
Yes! It's a safe "Load Box". You can unplug your cabinet and play silently with headphones or record via USB without damaging your amp head.
3. What is the purpose of the integrated 100W amplifier? Isn't it redundant?
No, it's genius. The Waza absorbs the power from your tube amp (to create the sound), then uses its own dedicated amplifier (Solid State Class AB) to send the volume you want to your speakers. This is what allows for linear volume control, rather than incremental adjustments.
4. Can I use third-party IR (Impulse Responses)?
Absolutely. The software allows you to import your own IRs (Celestion, York Audio, etc.) if you don't like the factory ones. There are four slots for user IRs.
5. Does the effects loop work with all amps?
Yes. You plug the speaker output of your amp into the Waza. The Waza then inserts its effects (or your pedals connected to its effects loop) after the sound has been created by your amp. It's fantastic for adding a clean delay to a distorted Marshall amp.
6. Is it compatible with bass amps?
Yes, as long as the amp's power doesn't exceed 150 watts. It's excellent for recording a distorted tube bass.