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Cardioid Dynamic Handheld Microphone

U.S. Two-Year Limited End-User Warranty

*Manufacturer's Suggested Retail Price. Actual selling price may vary; please check with an authorized Audio-Technica dealer.

  • Overview
  • Features
  • Specifications
  • Downloads
  • Reviews
  • Q & A

  • Overview

    This affordable cardioid dynamic microphone is designed for close-up vocal performance. The PRO 31QTR offers a broad frequency response and low handling noise in a tough, durable design that delivers consistent performance on the road. The mic sets price/performance standards for intelligibility, transparent sound quality and noise suppression. Available in two models for easy use with consumer and pro electronics: PRO 31 (XLRF-XLRM cable) and PRO 31QTR (XLRF- ¼” cable).
  • Features

    • Close-up vocal performance microphone sets price/performance standards for intelligibility, transparent sound quality and noise suppression

    • Cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source

    • Hi-ENERGY® neodymium magnet for high output and articulate vocal reproduction

    • Two-stage ball-type headcase for superior "pop" protection

    • MagnaLock™ on/off switch

    • Corrosion-resistant contacts from gold-plated XLRM-type connector

    • Rugged design and construction for reliable performance

  • Specifications

    OPEN CIRCUIT SENSITIVITY-55 dB (1.7 mV) re 1V at 1 Pa
    IMPEDANCE600 ohms
    SWITCHMagnaLock™ on/off
    WEIGHT11.0 oz (312 g)
    DIMENSIONS7.28" (185.0 mm) long,
    2.09" (53.1 mm) head diameter
    OUTPUT CONNECTORIntegral 3-pin XLRM-type
    CABLE15.0' (4.5 m) cable with XLRF-type connector at microphone end, 1/4" connector at equipment end
    ACCESSORIES FURNISHEDAT8470 Quiet-Flex™ stand clamp for 5/8"-27 threaded stands; 5/8"-27 to 3/8"-16 threaded adapter; soft protective pouch
    Click on the chart to view the larger image

  • Downloads

    PRO 31QTR Specification Sheet (pdf 91.04 KB)
    Optional Windscreens / Mounts
  • Reviews

  • Q & A

    Wrt Pro 31qtr - Is the capsule acoustically isolated from the body of the microphone? Didn't see any clear reference regarding same in the specs or features. I'm interested in purchasing this product if the capsule is indeed acoustically isolated. Thank you for your help; Don Smith


    Thank you for your inquiry. Yes, this is an internal shock mount.


    I did not realize when I purchased the pro 31 QTR mic that it came with an xlr to 1/4 unbalanced cable. I have used it with an xlr to xlr cable and it works fine. Is it okay to do that? If the mixer board enables phantom power will it cause any problems with the mic?

    Dave E

    Yes, most 1/4" inputs are LINE level rather than MIC level. Phantom power will not damage the microphone.


    Where do you plug a pro 31QTR in a TV?


    You may plug the microphone into a MIC level input.


    What is the difference between the PRO 31 and the PRO 31QTR First, what does QTR stand for? How is the PRO 31QTR different from the PRO 31?


    The PRO 31 and PRO 31QTR are the same microphone. The difference is in the type of cable provided with each. The PRO 31 comes with a standard balanced XLR female to XLR male microphone cable and is intended to be connected to the XLR Microphone input on the associated audio mixer, amplifier or recorder. The PRO 31QTR comes with an XLR female to one quarter (hence the QTR) inch plug cable. Since the output of the microphone is low Z, the plug needs to be connected to a quarter inch MICROPHONE input jack. Quarter inch MICROPHONE jacks are not very common on todays professional grade gear, but can still be found on some consumer grade gear.


    Can I use this mic with my computer? i would like to use this mike for teleconferencing and podcasts. What extra equipment do I need to do that?


    Thank you for your inquiry. First you need to make sure that you computer accepts a microphone level input in it's input jack (please note that most Macs accept only a line level input so I microphone will not work.) Secondly, you will probably need a 1/4 inch female to 3.5m male adapter.


    Does this come with a cable or stand? One of the pictures shows both but I'm still not sure.


    Thank you for your inquiry. It includes a 15.0' (4.5 m) cable with XLRF-type connector at microphone end, 1/4" connector at equipment end. It also includes a stand clamp, but does not include a stand.