AT-OC9ML/II

Dual Moving MicroCoil™ Cartridge

MSRP* US$699.00
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
  • Specifications
  • Downloads
  • Reviews
  • Q & A

  • Overview

    Moving coil cartridge with MicroLine® diamond tip, for the best in clarity, transparency, precise stereo imaging, lower distortion and even wear for extended vinyl and stylus life. A-T Vector-Aligned design, with two moving coils mounted at 90 degrees in place of the two moving magnets.





  • Specifications


    Frequency Response 15-50,000 Hz
    Channel Separation 31/21 (dB at 1 kHz/10 kHz)
    Vertical Tracking Force 1.25-1.75 grams
    Stylus Construction Nude square shank
    Recommended Load Impedance 20 ohms
    Output 0.4 (mV at 1 kHz, 5 cm/sec)
    Channel Balance 1.0 dB
    Stylus Shape MicroLine®
    Cantilever Gold-plated 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)
  • Reviews

    REVIEW SNAPSHOT®

    by PowerReviews
    Audio-TechnicaAT-OC9ML/II Dual Moving MicroCoil™ Cartridge
     
    5.0

    (based on 3 reviews)

    Ratings Distribution

    • 5 Stars

       

      (3)

    • 4 Stars

       

      (0)

    • 3 Stars

       

      (0)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (0)

    Reviewed by 3 customers

    Displaying reviews 1-3

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    5.0

    One of the best, price no object

    By 

    from Los Angeles, CA

    Pros

    • Consistent
    • Excellent Sound
    • Excellent tracking

    Cons

      Best Uses

        Comments about Audio-Technica AT-OC9ML/II Dual Moving MicroCoil™ Cartridge:

        I listen primarily to rock and classical music and searched for a cartridge which sounds alive and engaging and can track all of them from start to finish beautifully. Very dynamic and resolving and clear without sounding etched or fatiguing. The AT-OC9/MLII is a giant killer! It outperforms and out tracks cartridges 2-4 times as much (I know this because I own them too and don't like as much as the OC9/MLII)! I use it on a Goldmund Studio turntable and T-3F servo linear tracking tonearm. Its use of the MicroLine stylus is critical to its performance. I wish the higher end A-T cartridges also featured the MicroLine stylus instead of the inferior line contact profile which has poorer high frequency performance and distortion, especially on inner grooves. Audio-Technica management: I hope you are reading this (hint, hint).

        • How long have you used this product?:
        • Over a year
        • Reliability:
        •  
        • Audio Quality:
        •  
        • Durability:
        •  
        • Ease of Use:
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        (5 of 5 customers found this review helpful)

         
        5.0

        Superb cartridge

        By 

        from Houston, TX

        Pros

        • Consistent
        • Excellent Sound

        Cons

          Best Uses

            Comments about Audio-Technica AT-OC9ML/II Dual Moving MicroCoil™ Cartridge:

            My dad raised me on stereo from day one. I remember him going through AT, Shure, and Stanton cartridges back in the '80s. Back then we both agreed that AT had the sound and light tracking force we wanted. After a 2-decade vinyl vacation I brought it back. The AT440MLA on my Technics SL-1210M5G reminded me of the sweet sound that started my audio journey. Because my preamp has MC ability I also tried the Denon 103R. None of this prepared me for the OC9/II. I knew it was special from the first needle drop. While I like both the 440 and the 103R, the OC9 just takes it to a new dimension. The soundstage- the ability to hear individual instruments in their own space is one thing the OC9 completely walks away from the other two on. The highs are sweet but not overdone, the bass is balanced, and the mids are liquid. While I stand by the 440MLA and 103R as excellent values, they just don't compare to OC9/II. If you can afford it, do it. Highly recommended.

            • How long have you used this product?:
            • Over a year
            • Reliability:
            •  
            • Audio Quality:
            •  
            • Durability:
            •  
            • Ease of Use:
            •  

            (4 of 4 customers found this review helpful)

             
            5.0

            This cartridge exhibits noticeably superior performance and

            By 

            from San Antonio, TX, USA

            Site Member

            Pros

            • Archiving
            • digitizing phonograph records

            Cons

              Best Uses

                Comments about Audio-Technica AT-OC9ML/II Dual Moving MicroCoil™ Cartridge:

                I have used Audio-Technia phonograph cartridges for well over 15 years. Prior to that time I used several competing brands of cartridges, but never experienced the performance of Audio-Technica products. I am currently using the AT-OC9ML/II and am very pleased with the performance of this very fine product. I am a long retired electrical engineer/audiophile and appreciate the superior technical characteristics, and the audio quality produced by this cartridge, compared with competing cartridges of similar design, is unmistakably superior.

                • 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?:
                • Over a year

                Displaying reviews 1-3

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              • Q & A

                Do you have questions about this product?

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

                6 Questions | 6 Answers
                Displaying questions 1-6
                • Q:

                  What is your re-tipping or exchange policy for the AT-OC9ML/II? How many hours of usage do you recommend till re-tip or exchange?

                  Fred
                  Asked on 11/10/2016 by Fred from Pittsburgh, PA

                  1 answer

                  • Staff Reviewer

                    A:

                    Please contact our Service Department at (330) 686-2600 ext 5009 or at Service@atus.com for assistance with this.

                    Answered on 11/10/2016 by ATUS_Specialist3
                • Q:

                  Please mail me the settings of AT OC9ML II for my iFi micro iPhono2 phono-pre amp. best regards, Josef Koch
                  Asked on 11/9/2016 by cookie

                  1 answer

                  • CUSTOMER CARE

                    A:

                    Thank you for your inquiry. Are you referring to which EQ curve to use on the iPhono2? You will want to use RIAA. If this does not answer your question please contact our Audio Solutions Department at (330) 686-2600 ext 5000 or at audio-solutions@atus.com for assistance with this.

                    Answered on 11/9/2016 by ATUS_Specialist4 from Stow,OH
                • Q:

                  What is the DC resistance of the coils in the AT-OC9ML/II cartridge?
                  Asked on 8/13/2016 by Jim from Eugene, OR

                  1 answer

                • Q:

                  What load impedance is preferred when using with a Step-up transformer? Thx, Jeff
                  Asked on 8/3/2016 by Jeff from Houston, TX

                  1 answer

                • Q:

                  What is the wiring configuration on the AT-OC9ML/II? We know the bottom of the cartridge is wired if your looking at the front is green left and blue right.
                  Asked on 8/3/2016 by Larry from North Hollywood Ca

                  1 answer

                  • CUSTOMER CARE

                    A:

                    And the top is red left and white right.

                    Answered on 8/3/2016 by ATUS_Specialist1 from Stow, OH
                • Q:

                  Sirs,
                  I just received a new at-0c9ML/11 moving coil cartridge and can adjust loading resistance
                  as advised. I am struck by the difference between the recommended resistive load for the AT-0c9ml/11 and the 0c9/111....ie 20 versus a minimum of 100 ohms. Before I install the correct loading resistance could you comment or provide any other information concerning the 20 ohm recommended loading resistance, insofar as this is at the extreme low end of MC recommended loading resistances. Thank you,
                  Ry Maletz
                  Asked on 7/26/2016 by lRoy from United States

                  1 answer

                  • CUSTOMER CARE

                    A:

                    That`s 20 ohms for a step-up transformer (SUT) which is a passive device, or 100 ohms for a head amplifier (phono stage) which is an active device.

                    Answered on 8/1/2016 by ATUS_Specialist1 from Stow, OH
                Displaying questions 1-6

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