The IRT-X is not an extension cabinet it is an EXPANSION CABINET. Take your set-up – your guitar, your amp, your effects and add an IRT-X 200-watt EXPANSION cab and get more of your tone, whatever your tone is. Use a vintage amp with no effects loop – use the IRT-X’s stereo effects loop to add effect post output section. Love your small tube amp tone - take it to a big gig, plug it into an IRT-X and have a HUGE sound from a small package - even better - run a Wet/Dry/Wet system with 2 x IRT-X and EXPAND your volume and dynamics and spread your wonderful tone around the whole stage Got a modelling set-up: Kemper, Helix, Fractal, etc.? Get an IRT-X.