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 production 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 anymore, plus it does its job. It doesn't eat or color the sound. Shipping costs are borne by the buyer.
(I can also arrange for cleaning, in which case it will be 5000 HUF more expensive)