Picked this up on ebay recently since I've developed a bit of a wah fetish.
Don't really know what possessed me to get it really but I'm glad I did.
It seems to me like it leaves the low end perfectly intact. I think it sounds quite phasery
http://www.ourinnocencelost.co.uk/fx...shinei_wah.mp3
This is done using my Valenti Jazz (Passive mode) into the Kimbara then the Fuzz is the Mojo Hand Huckleberry then into a Bass POD XT set to Tube Preamp but mainly used as an audio interface into Audacity, then I've just boosted it because the POD XT is apparently really quiet when I use it to do fx clips.