One of Al Di Meola s two favorite acoustic guitar mics for live performance the Equitek e60 Cardioid Condenser Microphone has externally-biased point-source transduction with a high-power transformerless drive in a bulletproof road-ready housing. Take it on tour for high-impact instrumentation. Features include three-frequency hi-pass filter 10dB attenuator and integral stand clamp. The microphone s applications include acoustic instrument guitar cabinets bass cabinets strings piano cymbals/overheads kick drum snare drum hi-hat. 24V or 48V phantom power required.