Whirlwind QBOX Audio Line Tester


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    QBOX - Overview

    Qbox. A must have for any audio technician. The indispensable, all-in-one audio line tester is ideal for live-sound applications, maintenance, install work or anywhere audio transmits over cable.

    Outputs for standard headphones, a 1/4" jack for line-in or a 2k Ohm (telephone) earpiece out. A handy clip attaches the Qbox to your belt or equipment rack.

    Eliminate embarrassing down time by discovering audio failures before they discover your event. Simply generate or listen to audio at any point in your system from the mics to the power amps to quickly confirm which sections are working and which ones are not. The Qbox can quick-check dynamic mics and cables without activating your entire system. Use the built in mic or tone generator at three different levels to activate a signal path or to help identify a specific cable in a pile of unidentified ends. Powered by a single standard 9V alkaline battery and housed in a ruggedized ABS enclosure, the Qbox is light yet able to withstand the wear and tear of fieldwork.

    For an instant hands-free intercom, just plug in headphones and hook up one Qbox on each end of a line and use the built-in microphone.

    Use it to monitor a standard 3-wire intercom feed - LEDs confirm the presence of intercom or phantom power.

    Use it as a squawk box to the stage from the main audio console during set-up. Works in a pinch as a handy, portable, powered monitor too.

    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.

    A handy MONITOR switch 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 SPLIT switch disconnects the two XLRs from each other so tone or internal mic can be sent out of one XLR while you listen to what's coming back on the other. Or connect the XLRs together and "loop-through" or daisy-chain units.

    • Specifications:

      • Input Impedance: 40K Ohms balanced
      • Maximum Input Level: +14dBm balanced
      • Output Impedance: 100 Ohms balanced
      • Maximum Output Level: +14dBm balanced
      • Pad Range: -50 and -20 dBm
      • Range of Speaker Volume Control: 60dBm
      • Headphone Requirements: 8 to 600 Ohms
      • Power Requirements: 9V alkaline battery (Duracell MN 1604 or equivalent)
    • Item Includes:

      • Microphone
      • Speaker
      • Test tone generator
    • GTIN:


    QBOX - Required Accessories

      California Residents:
      Cancer and Reproductive Harm - www.P65Warnings.ca.gov