Boss WAZA Tube Amp Expander
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Boss
WAZA Tube Amp Expander
Product Info
Article Number:
458289
Brand:
Boss
Model:
WAZA Tube Amp Expander
Category:
Guitar Amp Attenuators
Price:
$1,428.90
* Prices may vary. Check retailer for current pricing and availability.
The Boss WAZA is a seriously impressive piece of kit for players who want to wrangle high-wattage tube amps without needing a massive stack. It’s fantastic for studio recording and live performance, letting you dial in a range of tones and speaker sounds without physically changing cabs – especially useful for those wanting to experiment without committing to a specific speaker setup.
Product Description
- Boss WAZA Tube Amp Expander
- Control Centre for Tube Amplifiers
- Modern
- variable reactive attenuator circuit for tube amplifiers up to 150 W
- Impedance settings for properly adjusting the load resistance of the amplifier
- Preserves the natural sound
- the dynamic feel and the individual character of the distortion
- 10 Memory slots
- Versatile parameters controlled via GA-FC / FS foot pedals and MIDI
- Integrated 100 W Class AB power amplifier with discrete analogue design and seamless volume control
- Powerful DSP section
- Customisable stereo effects: Compressor
- Delay
- Reverb and four EQs
- 22 Speaker-box emulations with five selectable close mic and three surround microphone types plus four slots for uploading your own speaker impulse responses
- External effect loop with selectable serial / parallel operation and control input for switching the amplifier channels
- Parallel speaker output for connecting two speakers for live use
- Balanced XLR line outputs (mono and L / R stereo) for connecting a FOH mixing console
- stage monitors and recorders
- Headphone output for quiet practice with fully turned up amplifier sounds
- Editor software (Mac / Windows)
- USB for direct audio recording and communication with the editor software
- Controls: Speaker Out
- Line Out
- Phones
- Resonance Z
- Presence Z
- Reverb
- Buttons: Fx Loop
- Effects
- Solo / EQ
- Amp Ctl
- Switches: Speaker Impedance
- Input Level
- L / R Gnd Lift
- Mono (Foh) Gnd Lift
- Loop
- Level
- Send Gnd Lift
- Return Gnd Lift
- Amp Ctl
- LED: Power
- Write
- FX Loop
- Effects
- Solo / EQ
- Amp Ctl
- Input Sig / Peak
- Footswitch: Dimensions (W x D x H): 381 x 297 x 111 mm
- Weight: 6.8 kg
*Connectors:*
- From tube amplifier: 6.3 mm jack
- Speaker Out A&B: 6.3 mm jack
- Line out L/R: XLR
- Line out mono: XLR
- Headphones: 6.3 mm stereo jack
- Send: 6.3 mm jack
- Return: 6.3 mm jack
- FX loop: 6.3 mm jack
- GA-FC: 6.3 mm stereo jack
- Amp Ctl: 6.3 mm jack
- USB B port
- MIDI: In
- Thru / Out
PROS
- • Variable reactive attenuation preserves nuanced tube amp distortion character
- • Discrete Class AB power amp delivers authentic, high-headroom clean tones
- • Speaker emulations offer surprising realism, expanding sonic possibilities
- • Memory slots and MIDI control streamline complex live performance setups
CONS
- • The weight makes it less than ideal for frequent transport
- • Premium-priced, representing a significant investment for most players
- • DSP effects, while capable, may not satisfy purists seeking only analog
Product Video
Key Features
Power Rating
100W Class AB
Impedance
Multiple selectable impedance settings for amp matching
Controls
Assignable parameters via GA-FC/FS foot pedals and MIDI
Reactive/Resistive
Variable reactive attenuator circuit
Speaker Output
Multiple speaker outputs for various configurations
Weight
36.9 lbs
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Frequently Asked Questions
Reactive attenuation more accurately simulates the load of a speaker cabinet, preserving more of the amp's natural response and dynamic feel compared to simple resistive attenuation.
Yes, you can load custom IRs; the unit supports four user slots for your own speaker impulse responses, allowing for extensive customization.
The discrete Class AB power amp is designed for transparency, but it does add a subtle warmth and refinement to the signal, especially at lower volumes.
