The BOSS Waza Tube Amp Expander endows your cherished vintage tube amps with all the benefits of a modern digital setup. FX loop? Speaker-free reactive loading plus attenuation? Onboard cab sims AND the ability to load your own impulse responses? It's all available in the Waza Tube Amp Expander. Now cranking your Deluxe Reverb to its sweet spot and recording without a mic is possible at comfortable bedroom listening levels. For the stage, the Waza Tube Amp Expander gives you an extra hundred watts of analog Class A/B horsepower to drive an additional cabinet, along with rich onboard stereo FX to really treat that house PA.