I've owned PrimaLuna equipment before. I bought the PL Prologue Three preamp and used it for six months before trading up to the Mystere ca11 preamp. The PL preamp incorporates an ultra-linear design configuration while the Mystere uses a push-pull design configuration with 6SN7/5AR4 tubes. For me, the Mystere was a better fit given my other equipment. I kept having issues with the PL not playing nice with other equipment. When I powered up the Mystere, all those conflicts went away. I continue to use the same equipment today which includes CODA solid-state amplifier, Manley phono stage, Rega Planar 25 turntable (Dynavector 10X5 cartridge), and Totem Sttaf speakers. If you have an opportunity to listen to both amplifiers - PrimaLuna and Mystere,I would satisfy that curiosity, because in my experience, the high-end division of the same company didn't cost me any more but the outcome was night and day. Hope that helps!