Detail 01
Variable reactive load box
Lets the tube amp run at its desired setting while volume is controlled.
Product detailSKU #1500000450797
BOSSWAZA Tube Amp Expander Core
1/5
Independent shopping perspective
The Korena take
Bring a tube amp into a more controlled stage or studio setup with the WAZA Tube Amp Expander Core. Its variable reactive load box lets you run the amp at its desired setting while controlling volume. Built-in delay, reverb, EQ, cabinet simulations, custom IR loading, and stereo effects extend the rig without adding separate processors. MIDI control and presets support repeatable setups, while the recording interface and XLR line outputs provide routes for recording or front-of-house use.
Strong match
Who this is for
- Recording a tube amp through the built-in recording interface and cabinet simulations.
- Stage rigs needing XLR line outputs, presets, MIDI control, and built-in effects.
- Using custom speaker IRs alongside delay, reverb, EQ, and stereo effects.
Consider the trade-offs
When to look elsewhere
- Tube amps with input power above the listed 150 W maximum.
- Amp or load setups outside the listed 4–16-ohm impedance range.
What matters in use
The specifications, translated
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 02
Maximum input power: 150 W
Sets the listed maximum power accepted from the amp.
Detail 03
Selectable input impedance: 4 / 8 / 16 ohms
Provides three impedance selections for the tube-amp connection.
Detail 04
Rated power output: 100 W at 8 ohms
States the rated output at an 8-ohm load.
Detail 05
XLR L/R and mono FOH line outputs
Provides balanced line-output connections for stereo or mono routing.
Detail 06
USB-B computer port
Provides the listed computer connection type.
Final check
Know before you order
- 01Match the tube amp and load setup to the listed 4–16-ohm impedance range.
- 02Do not exceed the listed 150 W maximum input power.
- 03The power-off safety load is specified at 16 ohms.
Product questions
Before you decide
Straight answers to the questions shoppers most often ask about this product.
01Can it be used for recording?
Yes. It includes a recording interface, cabinet simulations, custom IR loading, and a USB-B computer port.
02Which effects are built in?
Delay, reverb, and EQ are built in; stereo effects are also supported.
03Can I control it with MIDI?
Yes. It supports MIDI controllers and presets.
04What impedance range is supported?
The listed load impedance range is 4 to 16 ohms, with selectable 4-, 8-, and 16-ohm input impedance.
Reference
Full specifications
The complete catalog record, organized around the decisions musicians make when comparing gear.
1 detailsSound
- Load Impedance
- 4-16 ohms
2 detailsPickups & controls
- Footswitch
- BOSS FS-5L
- Ga Foot Controller
- BOSS GA-FC
15 detailsConnections & power
- Line Out L R Connectors
- XLR type
- Phones Jack
- Stereo 1/4 inch phone type
- Amp Ctl Jack
- 1/4 inch phone type
- Safety Load Power Off
- 16 ohms
- From Tube Amp Jack
- 1/4 inch phone type
- Ga Fc Jack
- 1/4 inch TRS phone type
- Rated Power Output
- 100W (8 ohms)
- Speaker Out Jacks Out A Out B
- 1/4 inch phone type
- Input Impedance
- 4/8/16 ohms (selectable)
- Send Jack
- 1/4 inch phone type
- Return Jack
- 1/4 inch phone type
- USB Computer Port
- USB B type
- Fx Loop Jack
- 1/4 inch phone type
- Maximum Input Power
- 150W
- Line Out Mono Foh Connector
- XLR type
4 detailsSize & weight
- Height
- 110 mm (4-3/8 inch)
- Weight
- 6.8
- Depth
- 296 mm (11-11/16 inch)
- Width
- 380 mm (15 inch)
5 detailsOther
- Line Out L R
- 600 ohms
- Fx Loop Return
- 1 Mohm
- Line Out Mono Foh
- 600 ohms
- Fx Loop Send
- 1 kohm
- Expression Pedal
- Roland EV-5, BOSS FV-500H, BOSS FV-500L, BOSS EV-30
