Les, If there is a Guitar Center Store nearby by, go test drive one. The is no feedback, and I have no idea why. The manual is available in PDF on the site. They recommend placing the mic from 3-7 feet away from the stick...with 7 being the preferred minimum distance. A friend has used one for several months and raves about it. Bose has a deal on their site...no payment/no interest for 12 months AND a 45 day trial. They will pay the return shipping if you don't like it...no questions asked. The sound is amazing!

dw