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, Rig, 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


  • 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

Further Information

Impedance 4, 8, 16
Noise Supression No
DI Interface Yes
Speaker Simulation Yes
Dummy Load (usable without cabinet) Yes
4 Customer Ratings:
  • 5
  • 4
  • 3
  • 2
  • 1
4.8 /5
  • features
  • sound
  • quality
$1,215 €1,091.60
Plus $50.10 shipping

The price in USD is a guideline price only!

Available immediately
Available immediately

This item is in stock and can be dispatched immediately.

Standard Delivery Times
Share This Product
Your Contacts
Phone: +49-9546-9223-20
FAX: +49-9546-9223-24
Online Guides
Recording E-Guitars
Recording E-Guitars
Our aim is to explain the basic process of recording the electric guitar!
Boss WAZA Tube Amp Expander
Boss WAZA Tube Amp Expander
Rank #9 in Guitar Amp Attenuators
test results:
Offers include VAT and are valid as long as stocks last. We do not accept liability for typographical errors or inaccurate information of any kind. *RRP = manufacturer's / distributor's recommended retail price in Germany
Recently Viewed
Toontrack EZbass

Toontrack EZbass (ESD); virtual bass guitar; extensively produced bass software / plugin with 2 basses, based on samples of an Alembic 5-String bass and a 5-string Fender Jazz Bass; sub bass with two synthesized sine tones add both fullness and...

Recently Viewed
Behringer CAT

Analogue Synthesiser VCO 1 with 4 miscible waveforms (sawtooth, triangle, pulse and suboctave), Pulse width modulation and two adjustable modulation sources, VCO 2 with 3 mixable waveforms (sawtooth triangle and suboctave) and two adjustable modulation sources, Low pass filter...

Recently Viewed
Adam T8V

Adam T8V; Active Nearfield Monitor; 8" Woofer; 1.9" U-ART Accelerated Ribbon Tweeter; 2x Class-D Amp: 70 Watts RMS Woofer, 20 Watts RMS Tweeter; Frequency Range: 33 Hz - 25 kHz; Crossover Frequency: 2.6 kHz; max. SPL: 118 dB (1m /...

Recently Viewed
iZotope Music Maker's Bundle

iZotope Music Maker's Bundle (ESD); Plugin-Bundle; contains eight essential tools for audio editing and creative music production; consists of BreakTweaker Exp, Stutter Edit, Trash 2, Iris 2, Elements Suite (Nectar Elements, Neutron Elements, Ozone Elements und RX Elements); supported formats...

Recently Viewed
K&M 80310

K&M 80310 disinfectant stand with bracket; bottle holder dimensions: 102 x 91 mm; base diameter: 275 mm; drip cup can be removed for cleaning; with bracket to fix the disinfectant bottle ; round base; weight: 3,6 kg; colour: pure white;...

Recently Viewed
Rode Wireless GO White

Rode Wireless GO White; Digital Wireless Microphone System; ultra-compact and lightweight set of transmitter and receiver; series III 2.4 GHz digital transmission; clip-on transmitter TX with built-in microphone (omni capsule); maximum SPL: 100 dB; Frequency Range: 50 Hz – 20...

Recently Viewed
Rockstand RS 20866 6 E-Guitar Stand

Multi-Guitar Stand For up to 6 electric guitars and / or electric basses, The electric guitar holder can be turned to hold V-style guitars, Can be folded up and folded compactly, Dimensions when set-up (L x W x H):...

Recently Viewed
Presonus ioStation 24c

Audio Interface and Controller 2 x 2 USB 2.0 (USB C) recording interface with 24-bit / 192 kHz, 2 x Mic / Line / Instrument XLR combo input jacks, 2 x Line output 6.3 mm jack symmetrical, Stereo headphone...

Recently Viewed
Rode Lavalier GO White

Rode Lavalier GO White; Lavalier Microphone; pairs perfectly with Røde Wireless GO (item 463781); works with most other devices with a 3.5mm TRS microphone input; compatible with most laptops, DSLR cameras, mobile recorders etc.; broadcast grade omnidirectional condensor capsule; Frequency...

Recently Viewed
Micker Pro Microphone Sterilizer UVS-01

Micker Pro Microphone Sterilizer UVS-01; UVS sterilizer disinfects and deodorises used microphones using UV radiation; bacteria and viruses are eliminated to 99.9% and odors are reduced; battery operated microphone sterilizer; no chemistry: does not smell, does not attack components; battery...

Recently Viewed
Mackie CR3-X

Multimedia Monitors Equipped with a 3" woofer and a 0.75" tweeter, Power: 50 W, Frequency range: 80 - 20,000 Hz (-3 dB), Housing: MDF, Power supply: 100 - 240 V AC, 50/60 Hz, Dimensions (W x H x D):...

Recently Viewed
Behringer Eurorack Go

Behringer Eurorack Go; Eurorack case; two rows with 140 HP each, build-in busboard with 32 headers for Eurorack modules;, vertical positioning possible via integrated tilt stand; 96 sliding nuts (M3) pre-installed; maximum module depth: 40mm (lower row), 62mm (upper row);...

Give Feedback
Feedback Found an error or want to give us feedback about this page?

We're looking forward to hearing from you and aim to solve any problems as soon as we can.