Pioneer CD-MC20 Microphone

Works with select Pioneer receivers with Auto-EQ

Item #: 130CDMC20

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14 Reviews

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This CD-MC20 microphone connects to select 2010-up Pioneer receivers with Auto-EQ, allowing you to measure your vehicle's acoustics and create the optimum EQ settings.

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    Pioneer CD-MC20 Microphone Reviews

    Average Customer Review:

    14 reviews
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    I was skeptical but it works!

    Written By West Coaster, California on Tuesday, June 09, 2015

    Crutchfield Customer Review (What's this?)

    I used this with a Pioneer AVIC-8000NEX. Luckily, the head unit has a jack for it near the CD slot in front, so I didn't have to remove the radio and connect it to the rear. I ran the Auto-EQ tests and at first, I didn't think much of the results. A few days later, I found where I could turn off the Auto-EQ settings. I was floored to hear the difference! Without it, my factory speakers sounded fuzzy, with a fair amount of distortion. With it, they actually sounded decent. I'm sure that they're not as good as speakers from Crutchfield, but they're OK until I get the money to upgrade them.

    Note: With the AVIC-8000NEX, you have to find and press the buttons on the screen while it's tilted all the way up. In full sunlight, they're hard to see, so running the tests took more time than it should have. Next time, I'll park in the shade.

    Pros: Made my factory speakers sound decent.

    Cons: I wish that I could run its tests with the engine on and the interior fans running. That would be more of a "real-world" test.

    Good tool

    Written By Basic user, Ca on Tuesday, May 05, 2015

    Crutchfield Customer Review (What's this?)

    Worked good. Helped dial in my sound for my listening.

    Pros: Easy to use

    Cons: Had to have the radio out to plug in the mic


    Written By P, Bulverde, TX on Tuesday, April 14, 2015

    Crutchfield Customer Review (What's this?)

    Easy and awesome

    Pros: Easy and great

    Cons: None

    Mic is good but Pioneer RTA system isn't

    Written By Bullitt5094, Houston, TX on Thursday, January 16, 2014

    Crutchfield Customer Review (What's this?)

    I'm sure the microphone is fine but I have Pioneer head units in two cars that utilize their automatic RTA systems. After performing the RTA in both cars, they sounded awful. I used a test CD and did the set-up manually and it sounded MUCH better. I wouldn't waste your money on the microphone. The best car automatic RTA system I've used is Alpine's system. It works very well.

    Pros: Mic works

    Cons: The Pioneer RTA system you attach it to is stupidly bad.

    A Must-Have item

    Written By MarkAfterDark, Uxbridge, MA on Sunday, January 12, 2014

    Okay, first, the documentation doesn't state that the process begins with the unit "off" but with accessory power turned on. I finally found a youtube video stating that the unit needs to be off. I installed my AVH-X3500BHS in my '07 Santa Fe yesterday. The sound quality was much better going through the factory component speakers, but the bass was muddy, highs harsh and mids were nothing to get excited about. I stretched a fleece headband around the top of the headrest and dropped the mic through into place at the center of the headrest and started the process. Afterward, the unit was quite insistent that I unplug the mic before I can continue. Fortunately, I left the dashboard storage off so I could reach behind and unplug the mic. The results were amazing. even the factory speakers now sound decent. They do not sound like $500 Focals, but they sound decent. The bass is tightened up and the highs are smooth. Now I can turn the music up without ear fatigue.

    Pros: Creates a smooth response curve and does what only an expensive audio analyzer could normally do.

    Cons: The big one is the documentation. It took some time and research to get the "Auto EQ" function to light up. These are more considerations than cons: If you prefer "Boom & Sizzle" this is not the product for you. This creates tight bass and very smooth mids and highs. The response curve is not suitable for analog FM and analog stations sound flat.

    Simply Awesome

    Written By Taylor, Morristown, NJ on Thursday, July 11, 2013

    Crutchfield Customer Review (What's this?)

    I hve Focal KRX2 6.5 in my front doors. I am a bit of a newb when dealing with car stereo. I was having a problem tuning my system. The tweeter was overwhelming the music with harshness. I purchased the Pioneer CD-MC20 from Crutchfield, plugged the microphone into the Pioneer deh-80prs and the difference is AMAZING!!! No more tweeter harshness. The speakers sound spectacular now. Don't hesitate to purchase...especially if you are not sure about all the settings and the intricate programming of a car stereo head unit. Be sure to hang the mic midway on the driver's headrest.

    Pioneer CD-MC20 Microphone

    Written By Anonymous, Mission Viejo, CA on Friday, April 19, 2013

    Crutchfield Customer Review (What's this?)

    Easy to use, surprised how wild the EQ settings came out. Also, wonder how much they change when the vehicle is in motion rather than sitting in my quiet garage.

    Pros: Simple to use

    Cons: None that I can think of

    Setup made simple!

    Written By Onurneez, Goodyear, Az on Tuesday, March 26, 2013

    Crutchfield Customer Review (What's this?)

    This mic is pretty awesome! Perfect for getting your stereo to sound perfect in your car. Very easy to use, just plug in and push a few buttons on the stereo and let it take it from there.

    Pros: Ease of use, price, and quality.

    Cons: Should be included with all Pioneer stereos equipped with auto EQ.

    Didn't get to try it.

    Written By Anonymous, Indianapolis, IN on Saturday, March 09, 2013

    Crutchfield Customer Review (What's this?)

    I bought this speaker to "optimize" the sound of the new Pioneer TS-A1675R speakers and Pioneer AVH-X5500BHS head unit, but I still haven't figured out how to get the Auto-equalize function on my head unit to work... So I'm just going to give 3-stars.

    Used for Auto EQ on Pioneer AVH P8400BH

    Written By wudbuchr, West Tennessee on Sunday, February 24, 2013

    Crutchfield Customer Review (What's this?)

    I guess that it did what it was designed to do but did not improve the sound to my ear. After using this to set up the Auto EQ, I was not happy with the audio curve. I prefer to manually adjust the audio to suit my ear. I hadn't considered using the Auto EQ setting as a baseline, but will try it again and see if that improves the audio.

    Pros: Small May save some manual adjustment time

    Cons: muffled the rear speakers too much attenuated higher frequencies

    Used for Auto Eq of AVH-P3400BH

    Written By GaryV, Breaux Bridge, Louisiana on Tuesday, December 18, 2012

    Crutchfield Customer Review (What's this?)

    Works as advertised. Didn't sound like I thought it would. A little hollow and tinny. I will work on Custom equalization for my own ears. I do like having a "correct" baseline to work from.

    Pros: Does it's job, still worth the money.

    Cons: You must hook up wire from head unit to parking brake or system thinks it's moving and will not proceed. Grounding wire also works.

    Nice idea - simple to do

    Written By ChuckE, Saratoga, CA on Thursday, November 22, 2012

    Crutchfield Customer Review (What's this?)

    Wasn't sure if this would make a difference in my truck but I am thrilled that I bought it and used it to improve the sound quality. A "must do"!

    Pros: Works very well, very easy to use.

    Cons: Should be standard equipment with the receiver - it makes such an improvement.


    Written By Aaron, Vacherie, LA on Saturday, January 21, 2012

    Crutchfield Customer Review (What's this?)

    This takes the guess work out of adjusting the EQ manually. Simply connect the microphone and let the head unit do the work. Made a drastic improvement in the quality of the music versus the preset EQ. Makes your listening position feel like center stage. I have factory speakers and now I cannot wait to get my aftermarket speakers and sub to complete my system. Bottom line; the best $30 I ever spent.

    Pros: Fool proof.

    Worth every Penny

    Written By Z, VA on Sunday, March 13, 2011

    If you want a noticalby better sound with more body and depth get this. It takes
    just minutes to get the optimal sound vs fiddling with the manual eq. Bottom
    Line: Get it!

    Hands-on research

    What's in the box?

    Download owner's manual

    • Auto-EQ microphone (with attached 6.5' cord terminated by a male 3.5mm connector)
    • Disposal note

    Product Research


    Compatibility: The Pioneer CD-MC20 is an Auto-EQ microphone for use with select 2010-up Pioneer DVD, digital media, & navigation in-dash receivers which feature an Aux input. Compatible Pioneer receivers include:

    • NEX series
    • AVH-X series
    • SPH-DA (AppRadio) series
    • AVIC-Z series
    • AVH-P series
    • MVH-P series

    Function: The CD-MC20 Auto-EQ microphone automatically measures your car's interior acoustic characteristics, and allows your compatible Pioneer DVD, digital media, or navigation receiver to create an auto-equalizer curve based on that information.

    Placement: The Pioneer CD-MC20 Auto-EQ microphone should be placed in the center of your vehicle's driver seat headrest facing forward.

    Connection: The Pioneer CD-MC20 Auto-EQ microphone features an attached 6.5' cable terminated by a male 3.5mm connector which plugs into an auxiliary input on your compatible Pioneer DVD, digital media, or navigation receiver.

    Our Product Research Team

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