Whirlwind Qbox REV 2 Mic/Line Tester

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and hook up one Qbox on each end of a line.Use it to monitor a standard 3 wire intercom feed or talkback from the main audio console. The Qbox can quick check dynamic mics and cables without firing up the entire system. It provides a handy mic or line level tone for activating a signal path or identifying a specific cable in a pile of cable ends. Powered by a single standard 9V alkaline battery and housed in rugged ABS, the Qbox is light yet able to withstand the wear and tear of fieldwork.The SOURCE section of the Qbox lets you send a tone or the signal from the built in condenser mic at mic or line levels. The SPEAKER volume control lets you confirm incoming signals at mic or line level.New in Rev 2A quieter headphone amplifier section for improved listening quality.A handy MONITOR switch that allows the user to listen to a balanced signal or to two separate unbalanced signals on pin 2 or 3 referenced to pin 1, such as a two channel intercom.A switch that unconnects the two XLRs from each other so tone or internal mic can be sent out of one while you listen to whats coming back on the other. Or connect the XLRs together and loop through or daisy chain units.An improved, test tone oscillator circuit that more closely maintains the selected level into a wide range of load impedances.
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