Ok I have tried pretty close to every filter out there - I love filters - really love filters and I am a particular fan of Mutron style filters.
Options for you include:
- MXR BEF - PROS: easy to dial in, inexpensive, easy to find; CONS: personally I find it sounds like crap - way too thin and brittle; and just doesn't have that stank.
- Mr Black Fwonk - PROS: Stanky as all heck, huge funky, enormous sound. Makes you get funk face as you play. CONS: impossible to control without a powerful limiter after it. it is so peaky and out of control. And it has a huge volume bump when you first engage.
- 3 leaf Wonderlove - one of my single most disappointing filter experiences. I just could never get it to quack like I wanted no matter what I did. I found it kinda bland. Plus if the Manta is too big, so is the Wonderlove:
- 3 leaf Proton - smaller brother of the Wonderlove. I never owned one but I have played on at a friend's house for a jam. Same impression as the Wonderlove. Major meh. But with even less controls to dial in.
- EHX Q-tron, Dr q etc - they have good sounds in there but they aren't much smaller Than the Manta and kinda meh over all.
NOW ONTO MY RECS
- Broughton Audio JoshWah - amazing little pedal masterpiece from Bro-ton. Great quack, easy to dial, small, cool addition of gain. By far the best option out there right now.
Or if you can wait:
- Mu-fx micro-Tron - a real mutron in a 125b with top jacks. But who knows when it is coming out. We paid for Phasor IIIxs in December and still don't have them out.