TOA M-61S T Mic Preamp with Compressor - Screw TerminalFor balanced, low impedance mics. Compressor function prevents overload and distortion. Choose from two connector types: female XLR or screw terminal connector. The M 61S from TOA Electronics is a microphone input module with a compressor designed for 900 series amplifiers. The module accepts signals from balanced, low impedance microphones. The compressor function helps to prevent overload and distortion. Other features of the M 61S are high and low