the first important thing is, you need a second poweramp. this could be another head or any 19" poweramp.
to get a matching stereo setup, i would recomend buying a second dual recto.
the second thing is, you´ll need effects which produce a stereo output signal. e.g. G-Major or something like that.
the third thing is, while using two different poweramps, you can become some serious hum problems cause by ground issues. especially if you use two heads.
if you want the recto in stereo, run the signal out of the loop, into a multieffect unit and back from there to the rectos return and another poweramp.
you could use the slaveout as well, but you must not return the signal the the loop return jack! while using the slaveout, send the effect signal to a stereo poweramp. in this case you´ll get a classical wet/dry/wet setup.
a simple way to use a stereo rig is, a preamp (triaxis, quad, studio, recto...), one multieffect unit and a tubepoweramp (2:90, 2:50, fifty/fifty, 2:100, 20/20) - with this setup you´ll have less problems with hum, with matching sounds left and right, less wireing......
i´m using a dual recto and a roadster head in stereo and switch between both preamps, for the effects i use g-major, IPS33B. it wasn´t easy to set it up without hum, matching stereo sound.......took me many hours!
within the last weeks, i got a studio peamp and a fifty fifty and another g-major. never been so easy to setup a stereo rig. and i can carry it away on my own, don´t need a helping hand at all.
