AT-OC9/III

MicroCoil™ Cartridge

MSRP* US$999.00
One-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

    Audio-Technica’s AT-OC9/III MicroCoil™ Cartridge features a special line contact stylus embedded into a low-profile solid boron cantilever, ensuring the music signals read by the tip of the stylus are transmitted reliably to the coils. The cartridge’s “VC mold” design ensures stability and rigidity while the dual moving coil offers excellent stereo separation and improved frequency response for long-lasting performance. The use of PCOCC wire (Pure Copper by Ohno Continuous Casting), a special copper with virtually no transverse crystal barriers to impede signal transmission, perfects the performance of the advanced dual coil design.

  • Features


    • Flagship model with extremely high-quality sound

    • Builds on the characteristics of the critically acclaimed AT-OC9ML/II

    • Special line contact stylus and solid boron cantilever with a 0.26 mm diameter

    • Neodymium magnet and permendur yoke significantly increase magnetic energy

    • PCOCC used for coils and terminal pins

    • Dual moving coil with high separation and wide response

    • VC mold for minimizing unnecessary vibration

    • Rugged body dedicated to achieving a design with increased rigidity

  • Specifications


    Frequency Response 15-50,000 Hz
    Channel Separation 30 dB (at 1 kHz)
    Vertical Tracking Force 1.88-2.2 grams (standard: 2.0 grams)
    Recommended Load Impedance Min. 100 ohms (when head amplifier is connected)
    Output 0.4 mV (at 1 kHz, 5 cm/sec)
    Channel Balance 0.5 dB (at 1 kHz)
    Stylus Shape Line contact
    Cantilever 0.26 mm diameter solid boron
    Mount Half-inch



    Note: moving coil cartridges require receivers or preamps with compatible inputs; their stylus assemblies are not field-replaceable.


    Conditions
  • Downloads

    A Guide to Phono Cartridges (pdf 669.29 KB)
    AT-OC9/III Manual (pdf 129.25 KB)
  • Reviews

    REVIEW SNAPSHOT®

    by PowerReviews
    Audio-TechnicaAT-OC9/III MicroCoil™ Cartridge
     
    4.0

    (based on 4 reviews)

    Ratings Distribution

    • 5 Stars

       

      (3)

    • 4 Stars

       

      (0)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (1)

    100%

    of respondents would recommend this to a friend.

    Pros

    No Pros

    Cons

    No Cons

    Best Uses

    No Best Uses
      • Reliability:
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    Reviewed by 4 customers

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    (1 of 1 customers found this review helpful)

     
    5.0

    Superb clarity

    By 

    from Sao Paulo, Brazil

    Pros

    • Easy Controls
    • Great Sound

    Cons

    • Be very careful with cantilever

    Best Uses

      Comments about Audio-Technica AT-OC9/III MicroCoil™ Cartridge:

      In simple words: pleasant to hear with superb clarity and definition with a reasonable price.

      • What best describes the environment the product was used in?:
      • Casual Listening
      • What best describes your level of audio knowledge?:
      • Audiophile
      • How long have you used this product?:
      • Up to a year
      • Reliability:
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      (1 of 1 customers found this review helpful)

       
      5.0

      The best mc cartridge I currently have. PERIOD.

      By 

      from Santiago, Chile

      Pros

      • Easy To Set Up
      • Great Sound

      Cons

        Best Uses

          Comments about Audio-Technica AT-OC9/III MicroCoil™ Cartridge:

          Beautiful design, exquisite sound. Is currently the best among my other mc cartridges,denon 103r and Yamaha mc9. After listening to Abdulmajid song in the Philips Glass work over Bowie's Heroes I don't think any other cartridge can sound any better.
          I'm also a watch collector, so I can notice these small details that indicate a very careful craftmanship.
          A flawless product that you'll love it.
          Includes all the hardware.

          • What best describes the environment the product was used in?:
          • Casual Listening
          • What best describes your level of audio knowledge?:
          • Audiophile
          • How long have you used this product?:
          • Less than a month
          • Reliability:
          •  
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          (3 of 3 customers found this review helpful)

           
          5.0

          Brings out the subtleties in the music

          By 

          from Illinois

          Comments about Audio-Technica AT-OC9/III MicroCoil™ Cartridge:

          I replaced a high end MM cartridge with the AT-OC9/iii. I was expecting more "punch" and better soundstaging, but what has impressed me most about the OC9/iii is the clarity of subtle signals. Very quiet passages with the MM were often audible, but not clear - like they were so soft that you couldn't quite make them out. The same passages with the OC9/iii are not louder, but are now perfectly clear. This effect doesn't just apply to very soft passages, but also to subtleties in tone and how the overall mix between instruments is perceived. Acoustic guitar is especially telling. Where before I would hear the notes, now I hear the fingers on the strings and the character of the instrument beneath the notes.

          • What best describes the environment the product was used in?:
          • Casual Listening
          • What best describes your level of audio knowledge?:
          • Audiophile
          • How long have you used this product?:
          • Up to a year
          • Reliability:
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          (3 of 9 customers found this review helpful)

           
          1.0

          Four decibels high, (WAY out of balance) on RIGHT channel

          By 

          from Illinois, USA

          Site Member

          Pros

            Cons

            • out of ballance

            Best Uses

              Comments about Audio-Technica AT-OC9/III MicroCoil™ Cartridge:

              I am asking for an exchange. Bought from L.P. Tunes, it came with ONE SCREW holding it to the shipping mount. The RIGHT CHANNEL is 4 DB hotter than the left. It is $800 and OUT OF BALANCE.

              • What best describes the environment the product was used in?:
              • Other
              • What best describes your level of audio knowledge?:
              • Audiophile
              • How long have you used this product?:
              • Less than a month
              • Reliability:
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            • Q & A

              Do you have questions about this product?

              Get answers from real customers and in-house experts with AnswerBox.

              15 Questions | 15 Answers
              Displaying questions 1-10Previous | Next »
              • Q:

                I have a new Pioneer PLX-1000 Turntable to which I have mounted my old OC/9. The stylus is a bit warn. What would be the best cartridge. Retipping my OC/9, A new OC/9II, OC/9III, an AT150Sa, ot AT150MLx? Thank you.
                Asked on 6/6/2017 by MEA from St. Paul, MN.

                1 answer

                • Staff Reviewer

                  A:

                  Please contact our Audio Solutions Department at (330) 686-2600 ext 5000 or at audio-solutions@atus.com for assistance with this.

                  Answered on 6/8/2017 by ATUS_Specialist3
              • Q:

                How does the OC9/III cartridge differ from the ART9 cartridge that is sold in Japan and Europe? Is the ART9 a superior cartridge?
                Asked on 6/4/2017 by Dave from Blue Hill Maine

                1 answer

                • Staff Reviewer

                  A:

                  Please contact our Audio Solutions Department at (330) 686-2600 ext 5000 or at audio-solutions@atus.com for assistance with this.

                  Answered on 6/5/2017 by ATUS_Specialist3
              • Q:

                I have a Denon DP-60L turntable with one straight low mass arm and one medium mass S arm. Which will fit best.
                Asked on 2/21/2017 by EJ

                1 answer

                • Staff Reviewer

                  A:

                  Thank you for your inquiry. Since the OCM/III is a high compliance cartridge, I would think the low mass tonearm would be the one to use.

                  Answered on 2/23/2017 by AudioSolutionsManager from Audio-Technica U.S., Inc.
              • Q:

                Can you tell me what the DC resistance is for the cartridge coils? This will help me to determine the proper load impedance for it. Thanks.
                Asked on 2/5/2017 by John from Toronto, Ontario

                1 answer

                • Staff Reviewer

                  A:

                  Thank you for your inquiry. The DC resistance is 12 Ohm.

                  Answered on 2/15/2017 by AudioSolutionsManager from Audio-Technica U.S., Inc.
              • Q:

                I have a very low mass magnepan Unitrac unipivot arm. ? compatibility???
                Asked on 11/23/2016 by Stein from Massachusetts

                1 answer

                • Staff Reviewer

                  A:

                  Thank you for your inquiry. The AT-OC9/III is a high compliance cartridge, so it should work on your low mass tonearm.

                  Answered on 11/23/2016 by AudioSolutionsManager from Audio-Technica U.S., Inc.
              • Q:

                Will this work with my Thorens TD 309?
                Regards,
                Sorin
                Asked on 10/15/2016 by Sor

                1 answer

                • Staff Reviewer

                  A:

                  Thank you for your inquiry. First, your turntable has a 1/2 " mount, so the AT-OC9/III will physically install. Looking at the internet for effective tone arm mass it appears your turntable has a moderate to low mass, so the high compliance AT-OC9/III (31.5) should be fine. One last thing to think about is that moving coil cartridges require receivers or preamps with compatible inputs.

                  Answered on 11/14/2016 by AudioSolutionsManager from Audio-Technica U.S., Inc.
              • Q:

                Will AT-OC9 best and compatible with Rega RP8?
                Asked on 9/20/2016 by AAR

                1 answer

                • Staff Reviewer

                  A:

                  Thank you for your inquiry. The stock cartridge fro your turntable is a moving coil like the AT-OC9, although I cannot tell about the mount type whether it is a 1/2 inch or something proprietary. You will need to check with the manufacturer to make sure.

                  Answered on 10/4/2016 by AudioSolutionsManager from Audio-Technica U.S., Inc.
              • Q:

                Will this cartridge be compatible with the arm of my Pro-ject RPM 3 Carbon Turntable? Thanks.
                Asked on 7/23/2016 by Ian from Spartanburg, SC

                1 answer

                • Staff Reviewer

                  A:

                  Thank you for your inquiry. Yes it will.

                  Answered on 8/4/2016 by AudioSolutionsManager from Audio-Technica U.S., Inc.
              • Q:

                I have the AT-120L-USB/AT95E turntable/cartridge and it works quite well. Can I use any of the higher-end Audio-Technica cartridges with it (my preamp can support either MM or MC cartridges) ?
                Asked on 7/11/2016 by PETER from New York, NY

                1 answer

                • Staff Reviewer

                  A:

                  The AT-LP120-USB is not best-suited for a moving coil cartridge. If you're looking to get up into that quality of cartridge, we recommend taking a look at the AT-LP1240-USB. However, you can upgrade your cartridge from the stock AT95e (green) cartridge on your AT-LP120-USB to a higher quality moving magnet cartridge. For more help, please contact us directly at Audio-Solutions@atus.com

                  Thanks!

                  Answered on 7/12/2016 by ATUS_Specialist4
              • Q:

                How many grams is this cartridge?
                Asked on 3/27/2016 by 1oldguy from Newfoundland ,Canada

                1 answer

                • Staff Reviewer

                  A:

                  Thank you for your inquiry. If you are referring to the Vertical Tracking Force it is 1.88-2.2 grams (standard: 2.0 grams).

                  Answered on 4/7/2016 by AudioSolutionsManager from Audio-Technica U.S., Inc.
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