[Mike Rivers]

Bill Graham wrote:

I am using a mike preamp. (I have to, because it has to
supply phantom power), but I can't drive the chorus unit directly,
because when I do, the sound is badly distorted. This is, (I think)
because the mike preamps have low impedance outputs and all these chorus
pedals are made for guitars, and take high impedance inputs.

No, it's not because of an impeance mismatch, it's because
of a level mismatch. But you should be able to turn the
output level of the mic preamp down so that the chorus pedal
doesn't distort. Have you tried that? If not, try it.

I was hoping that someone would know of a chorus unit that
was made for singers that would accept a low impedance input.

I don't believe that you'll find a pedal-format unit that is
designed specifically for a line level input. Just turn down
your premap ("mess with the potentiomenters")

--
"Today's production equipment is IT based and cannot be
operated without a passing knowledge of computing, although
it seems that it can be operated without a passing knowledge
of audio." - John Watkinson