yeah it's mod 3.1, i really need to change the valves in there, being a veteran MP-1 user, what do you recommend? currently it has sovteks in there, sounds fine, but they've been there a while and it's due for a refresh.
i have a hankering to put it back into stock, but honestly this unit has been messed with enough times for me to leave it alone, just the fact that it's paired with my VJ poweramp gives it a life of its own anyway so i like that "unique" character :)