Allowing you to double mic your guitar, bass, or keyboard amplifier while isolating it from room and stage reflections, the guitaRF Guitar Amplifier Reflection Filter from sE Electronics is composed of a 4-layer acoustic filter with a pass-through hole with rubber-finned grips for a small diaphragm dynamic or acoustic mic, in addition to an adjustable mount for a large diaphragm condenser or ribbon mic. The entire assembly can be adjusted, as well as mounted onto a mic stand for more freedom in placement. In addition to amplifier miking, the guitaRF filter can be used in a variety of acoustic and drum miking applications.