Whirlwind WH-MD1 Portable Mic to Line Driver with Phantom Power Headphone Amplifier

Portable Mic to Line Driver with Phantom Power Headphone Amplifier Combines a high quality mic/line input stage with a transformer isolated line driver and independent headphone amplifier. Ideal for boom, parabolic and interview mics, the MD-1 provides phantom power, local monitoring and a line-level balanced output for noise immunity over long cable runs. Housed in a rugged steel chassis equipped with a belt clip and powered by two 9-Volt batteries ( changing batteries does not require opening the case). Input stage has a level control with a 40dB range and a MIC/LINE input level switch, plus switchable 18V phantom power for condenser mics. Its output can be switch selected between stage and a straight loop-through. The headphone volume control provides 60dB range of adjustment to post-transformer input signal or to signals inserted at the headphone Line-In jack. Ideally suited for general purpose audio signal testing and amplifier tool for the broadcast equipment box.Features: A separate balanced line level Aux input to the headphone amp for monitoring a program mix, a console foldback or a director's cues Headphone volume control and a separate MIX control allow you to adjust the headphone balance between the mic driver section and Aux input Built-in 18V phantom power ( switchable) Steel case with belt clip resists abuse Two alkaline 9V batteries are mounted in slide out trays for easy access Specifications: Input Impedance Mic Mode: 1.5k Ohms Input Impedance Line Mode: 10k Ohms Output Impedance: 600 Ohms Max Input Signal Mic Mode: -4dBm Max Input Signal Line Mode: +12dBm Frequency Response: 3dBm 6Hz-25kHz Frequency Response: -2dBm 20Hz Frequency Response: -1dBm 20kHz Maximum Output Level: +15dB into 2k Ohms Maximum Output Level: +26dB into 10k Ohms Maximum Output Level: +34dB into 100k Ohms Phantom Power: +18VDC Power Requirements: ( 2) 9V alkaline batteries