I have both a Zoom B3 and a B1on that I run in tandem ( the B1on is for Parametric EQ only, tailored for different basses I may be bring to my gigs) The issue I have is my 8-String emulation that I use on select songs. Originally, I found that a +12 8va - playing the fundamental and letting the Zoom B3 processor handle the Octave - produced too many digital artifacts high in the processing so I reversed it: I played one 8va up the neck and set the processor to play the fundamental at -12...This was a drastic improvement and Ive been doing it this way since but, because I am playing up the neck, the string tones are much duller. Playing at the down the neck at the early frets on the high strings helps greatly but I need more range than what is available there So Im considering an Octave. I would like to go back to playing the fundamental myself andletting the Processor handle the +12 Octave. What do you recommend that has great reproduction of the octave +12 with little or no digital artifacts?