ive had a couple.
I had a micro qtron to begin with, alright for the money, but it was way too loud in the only setting it worked best with my bass. But as you dont like ehx nevermind.
If your not looking to spend mega bucks the ashdown is a good one to look at, has some nice filters in there.
Currently im actually using the filter in the bass piod i recently got and thats fairly good, but i too, have a 442 on the way