Hosa Audio DIB 307A Hosa Audio DIB 307A Description: Boost guitar and bass signals up to line level for direct-to-mixer connections via either Low-Z or Hi-Z inputs. "Amp-In" feature allows your amplifier's speaker output to feed the console. Now your amplified sound can go directly into the console without time consuming microphone selection and placement. Ground Lift Switch breaks "ground-loops" reducing 60-cycle hum. Rugged die cast aluminum chassis for incredible strength. Get Your Hosa Audio DIB 307A Today!