Create sonic fire. The boss waza tube amp expander brings together an extensive range of carefully developed features that will elevate your boss waza tube amp to the pinnacle of performance. Itll let you really experience the power of your amp. Its advanced reactive load section allows you to crank up your amp to the max without altering its tone or having to play too loud.but thats far from all this awesome unit can do. Youll enjoy versatile tone in your amp like never before. A built in effects engine and external effects loop provide you with a wealth of sonic possibilities including reverb compressor and delay effects. Four different eqs let you shape your perfect tone. Were still only scratching the surface of its capabilities. This is sonic freedom. And theres no need to keep running over to change your tone thanks to the included boss ga fc guitar amp foot controller. With six switches and two expression pedal inputs you have full control over the channel and effects. Switch between 4 channels or toggle effects on and off all while continuing to play. And if you need even more control you can even connect two expression pedals to adjust overall volume and drive. All you need to manage your sound in one convenient package.