This is sort of an upright Bass post but it could also be useful to someone with a electric bass with 2 ouputs like the Rick 4003. Basically I have to Pick-ups for my upright, a Realist and a Fishman. They both have very differant positive aspects. My uprights amp (a small GK combo) only has one input. I'm wondering if there is a device that will allow to blend 2 signals into 1 and sound great.
