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Cardioid Condenser Clip-On 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

    Please see the updated ATM350a Instrument Microphone Systems.

    Supplied with Audio-Technica’s versatile UniMount® clip and new violin mount, the low-profile ATM350 is an exceptional cardioid condenser microphone designed to clip to brass, upright bass, reeds, piano, snare, toms, and violin. The microphone offers a crisp, clear, well-balanced response, even at high SPLs. It features an integral 80 Hz hi-pass filter on the in-line power module. Its cardioid polar pattern reduces pickup of sounds from the side and rear for effective protection against feedback.
  • Features

    • Low-profile design for minimum visibility

    • UniMount® clip permits accurate positioning, provides shock resistance and protects element

    • Unique violin mount permits unobtrusive placement of microphone between the instrument’s bridge and tailpiece

    • Crisp, clear, well-balanced response, even at high SPLs

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

    • Interchangeable elements available for hypercardioid and omnidirectional polar patterns

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

    • Rugged, all-metal design and construction for years of trouble-free use

  • Specifications

    ELEMENTFixed-charge back plate permanently polarized condenser
    LOW FREQUENCY ROLL-OFF80 Hz, 12 dB/octave
    OPEN CIRCUIT SENSITIVITY–49 dB (3.5 mV) re 1V at 1 Pa
    IMPEDANCE50 ohms
    DYNAMIC RANGE (typical)122 dB, 1 kHz at Max SPL
    SIGNAL-TO-NOISE RATIO67 dB, 1 kHz at 1 Pa
    SWITCHFlat, roll-off
    WEIGHT (MICROPHONE)14.5 g (0.5 oz)
    WEIGHT (POWER MODULE)81.2 g (2.9 oz)
    DIMENSIONS (MICROPHONE)37.8 mm (1.49") long,
    12.2 mm (0.48") diameter
    DIMENSIONS (POWER MODULE)92.9 mm (3.66") long,
    18.9 mm (0.74") diameter
    CABLE4.0 m (13.1') long (permanently attached to microphone), 3.2 mm (0.13") diameter, 2-conductor shielded cable with TA3F-type connector
    ACCESSORIES FURNISHEDAT8542 power module; AT8418 UniMount® microphone instrument mount; AT8468 violin mount; soft protective pouch
    Click on the chart to view the larger image

  • Downloads

    ATM350 Specification Sheet (pdf 321.00 KB)
    ATM350 Submittal Sheet (pdf 372.91 KB)
    Optional Windscreens / Mounts
  • Reviews

    Works great for trombone and saxophones of all sizes also!


    Use these mics with a 10 instrument dance/swing big band indoor and outdoor for 8 shows now. On sax from soprano to baritone, they are great solutions. As the previous review said, no surrounding noise or wind is picked up. Also worked for me on trombone, when he uses a mute it is smaller than the bell and the mic mounts on the left away from the right hand applying the mute. Both trumpets present a problem as they can bash the mic or knock it off when they apply mutes that nearly span the whole bell. Guess that's the risk in swing or dixieland bands. Maybe I can train them to take off the mic before they pick up the mute. After the show, mics are removed and clipped to 2' tall straight pin stands I made from paper towel holders bases, so they don't just drop mics on the floor. My favorite AT mic.

    Denver, CO, USA

    Excellent on Horns


    Purchased for use on trumpets used in contemprary worship services. Player is normally positioned in fairly near proximity to semi-enclosed drum kit as well as sub-woofers. Virtually no pickup of surrounding sound as very little gain is required for reinforcement of the horns. Trumpet player is also able to switch horns quickly transferring the mic from one instrument to another with no handling noise. Have only used the violin attchment a couple of times but the results have been excellent. It's a bit of a struggle inserting the mic element into the velcro attachment but once in place it is very secure. Beware however as the first time it was used with a violin our sound tech was not aware that the violinist was only playing during the prelude to a special service. Anticipating that he would remain on stage for the opening song, the mic was left open as the violinist set his instrument down and began removing the velcro from the violin. Needless to say that sound was picked up quite well. Despite that humourous incident and lesson learned the ATM350 has a permanent place in our microphone arsenal. The sound reproduction is very natural and unwanted noise is virtually non-existant. These are the only 2 applications we have tries so far. If it weren't for the fact that it is so regularly in use I would definataely be trying it out in other applications. Perhaps it's time to pick up another.

    Jackson, MI, USA

    ATM350 Cardioid Condenser Clip-On Microphone

    5.0 2


  • Q & A

    Hi, what are the differences between ATM350 and ATM350U?


    The ATM350U is the new updated version of the microphone with modular mounts.


    Hello, I have an ATM350 that I use for my saxophone. On my last gig, the clip broke. Is it possible to by a replacement clip? Thanks, Frank


    Thank you for your inquiry. You may purchase the AT8418 UniMount® microphone instrument mount.


    What is the thickness range of the clip?


    Thank you for your inquiry. The clip will open to 8.8mm.


    where to get a replacement foam windscreen?


    The windscreen is available from our Parts Department. Please contact Parts by phone at (330) 686-2600 ext 5002, or by email at for assistance.


    Is there a way to use the ATM350 direct into a console with phantom power without the use of the battery pack? It would seem that it could be wired directly to an XLR connector.


    If a microphone includes a power-module, then that power-module is a necessary component for operation, and must not be removed. (Re)Wiring directly to XLR will result in a voided warranty, and will subsequently result in a permanently damaged microphone. For more information related to this, please visit the web-link below. If you have any further questions, please contact the Audio-Technica United States (ATUS) Audio Solutions Team at: Thanks!


    I am the happy owner of 2 ATM350 microphones which I use for saxophone. How can I use them wireless? I know there is a ATM350cW version but I don't want to buy *other* two microphones. Also, if possible I would like to have the possibility of choosing every time to use cable or wireless depending on the situation (large or small stage, studio...). Thank you.


    To best help you, please contact Audio-Solutions at . We can dive a little deeper into this discussion as there are a couple steps you would need to take in order to do what you want to do. Thanks!


    Can this microphone be used with a harmonica?


    Yes it can! It would sound great with a harmonica. However, mounting it might be an issue for you. If you have a harmonica holder that you wear on your head, you may be able to mount it to that. Don't forget, we also offer a wireless version of this mic as well if you are trying to avoid extra cabling!


    Is it possible to take the AT8532 12v battery out of its compartment and then send phantom power from a mic preamp thru the AT8532 to the ATM35 I would like to use the ATM35 in the recording studio without the 12v battery


    Thank you for your inquiry. Yes, the ATM35 will operate via phantom power or battery..


    Hi I recently bought a atm 350. Today a musician broke the it possible to replace or repair it?


    The instrument mount for the ATM350 is the AT8418. If you have a repair question and are located in Canada, please contact If you have any further questions, please contact the Audio-Technica United States (ATUS) Audio Solutions Team at: Thanks!


    Hi I recently bought a atm 350. Today a musician broke the it possible to replace or repair it?


    Yes, you can buy just the clip. The model you are looking for is the AT8418.