Instruments Dynamic MicThe TT1 cartridge has been specially designed for recording and reproducing the sound of acoustic instruments such as stringed instruments, wood, wind, guitars and percussion, either live or in the studio.The new, rugged TT1 Instruments mic has shown itself to be highly effective for amp micing (guitar, etc.).SPECIFICATIONS Element: Dynamic Polar Pattern: Uni-directional Sensitivity: -49dBV/Pa (2.2mV/Pa) Frequency Response: 50-15000 Hz Output Impedance: 600 ±30% at 1kHz