satellite is a mark III green stripe power section with an abbreviated pre amp section, with only 2 12ax7s. on its own, i've read the circuit described (by a certain you tube tech) as one channel of a 5e3 into a boogie simul power section. it can be used as a one channel amp, ala the son of a boogie. or a "blank" power section to run your boogie in "dual mono"... not true stereo because its the same pre amp twice. they're certainly not a high production number unit, but they're sleeper as fuck. i can only imagine how bad ass they'd make a kemper or an axe fx sound with that power section and 5 band eq.