The Recto is known for being very loose in the preamp and having no negative feedback in the poweramp.
You could probably get VERY close to a Recto with your 50w Ecstasy on the high gain channels which don’t have all that much filtering, and maxing out the Presence, setting the poweramp switch to Loose, and then being very conservative with the mid and treble knobs, maybe even adding an EQ in the loop to control the highs. My XTC can get surprisingly close to my Recto that way.