Unfortunately, this is no longer available, but perhaps the Related offers may be of interest.
huendeskes Century SGE-9B Bass Equalizer (this is a Boss GE7-B clone, Taiwanese product from the 90s) It's old, the pots crackle when you move them, but you don't usually do that while playing :) and if you get it cleaned, it won't crackle anymore, plus it does its job. It doesn't eat or color the sound. 7000Huf + postage costs