I use an ART Tube MP Studio V3 preamp, it gets me sound control and phantom power needed for my bell clip condenser mic. Am considering adding a harmonizer: I can get one that has phantom power, but not sure about losing the benefits of the preamp including volume control, which includes getting me the gain needed to get past all the on stage amps. Has anyone with a condenser mic connected a harmonizer/vocalizer, etc (any other effects pedals). to a preamp, and if so, how did you do it?