I have a schaller oyster pickup that I bought to be used on my acoustic guitar, but was curious if this could also be used on the double bass. I don't see why it wouldn't be ok to use, as it seems as through schertler uses something similar as their double bass pickup. Its basically just a single transducer that mounts to the outside of the instrument. I put it on the top of my bass in the middle, just behind the bridge, and played it through my eden metro for a few mins. I know this is probably not the best combination, but for jamming with friends etc... seems like it might be ok for the time being. Any one have any experience with these types of pickups, single transducer? Any input would be appreciated.