Direct-fit premium sound is now available for your 1990 - 2024 Miata and 2016+ Fiat 124! Let us introduce you to our M800 2-way door speakers! Available exclusively from 3rd Millennium, the M800s are an exact fit for the 1990-1997 doors. The 1999-2015 Miata requires our AD1 Mounting Kit and 2016+ models & the 2016+ Fiat 124 require our AD2 Mounting Kit - select bundle below (not compatible with 2009-2015 Bose radio).
The M800s just screw into place with no drilling, cutting, or modification of your Miata. We've even manufactured the M800 with a special harness so they just plug in to your existing door wiring. It's a screwdriver-only plug and play install!
And the sound is an an astonishing improvement over stock
or cheap aftermarket speakers.
We designed the M800 specifically for the Miata doors. The
M800 features a 155mm polypropylene woofer cone, a large magnet structure, a butyl
rubber surround, and a 27mm mylar tweeter with crossover. The result?
Extended low frequency response with an ultra-smooth high-end.
By themselves or coupled with our Millennium-5
headrest speakers, our M170 headrest speakers
for Special/Limited Edition 1st gen Miata's, or our 1999-2005
M200 windblocker speakers,
you'll have the ultimate Miata sound experience.
Installation
in your Miata literally takes minutes and only requires a screwdriver as
the M800s are an exact fit and use the existing speaker screw holes
(the 1999-2015 Miata requires our AD1 Mounting Kit and the 2016+ Miata &
Fiat 124 requires our
AD2 Mounting Kit - bundles below). And with our included harness
adapter, you simply plug them in to the stock factory wiring. There's no
splicing, soldering, crimping, drilling, or struggling to install.
The M800s are true premium-quality music speakers and have many improvements over factory and generic replacement speakers including:
Note that if you have a 1999+ Miata or Fiat 124, you will need to select our bundle that includes the appropriate mounting kit. Bundles are offered at a special reduced price compared to purchasing separately. Installation is plug-and-play.
Optional Rainshields: Especially in the 1st and 2nd Generation Miata's, a lot of water gets into the doors. 2006+ Miata's have much less of a problem with water in the doors because of the way the inner door assembly is constructed. The XTC65 baffles are an economical and simple way to protect your speakers without anything to buzz or vibrate. Just cut out the lower half and install. Watch our video to learn more.
Add to your order below.
Bose info:
1999 - 2008: Because the M800s are standard 4-ohm speakers, 1999-2008 Miata's with a Bose radio/amp can use the M800s but will experience reduced maximum output due to the M800s being a 4-ohm impedance compared to the Bose 1-ohm. In other words, you will need to turn the volume control on your radio higher than you did before to get the same sound level. And with the Bose system, you'll also want to disconnect the stock Bose tweeter. It's 4-ohm but harsh sounding and since the M800s are already a 2-way design with a superior tweeter, the stock tweeter is best left disconnected.
2009-2015: Our M800's with the AD1 install kit is a perfect physical fit in the 2009-2015 Miata doors with stock Bose speakers, but operation will not be correct with the stock Bose amp as Mazda/Bose built the crossover into the amp itself so that the door woofer and tweeter are fed frequency-limited signals.
But if your 2009-2015 NC Bose Miata has already had the radio/amps replaced with any normal aftermarket radio & amp, our M800's will fit & work perfectly in the doors regardless of the factory speaker setup you have.
2016+: Mazda went back to installing the crossovers on the speakers themselves, so the M800s will install without issues. As in the 1999-2008 models, the M800s are normal 4-ohm speakers so with the Bose radio system you will notice that you'll need to turn your volume up higher then previously to get the same volume level. We also recommend disconnecting the stock tweeters in the door columns as the M800 tweeter is far superior and will provide better imaging.
When you order you will receive (2) brand new M800 speakers. We offer a 30-day 'no questions asked' money back guarantee and a full 1-year warranty.
Still have questions? Drop us a note.
Please select your model & options below
"I just installed my m800s. Their sound is great. Replaced a set of poor fitting Focals, and the sound is crisper and I would recommend them to anyone. Great job and they include everything one needs for an easy installation. Samson C, New Mexico
"Just finished installing the M800's in my 2009 Mazda MX5 NC. Great kit, took me about an hour, taking my time. Clear & correct instructions. All parts fit precisely. I would advise to add the white plastic door card snap fasteners; I had one set of five extra and I needed all five. They tend to break easily as they become brittle over time. I would get two sets of five just to be safe. The quality is impeccable, incredible sound quality, VAST improvement over my stock speakers which are pitiful. Thanks for great service and product!" Frank, Netherlands
"1990 Miata- ordered the headrest and door speakers to get powered by a new Alpine UTE-73BT and all I can say is that I am blown away by the sound quality. Thank you for making a great product at a very reasonable price! I will highly recommend your product!" Jason, Wisconsin
"Received, installed in about 30 minutes, and sounding sensational" Bill, Australia
"Wow! Was the installation of headrest and M800 door speakers a snap! There is something to be said for utilizing speakers that are a direct and perfect fit. The sound quality improvement is fantastic. Even with an unmodified factory radio the sound is full and massively improved." Scott, Minnesota
"Awesome fit and easiest speaker install I have ever done. The whole project took less than an hour. The only complaint I have is that the door speakers don't have more bass but that could be because I have a stock head unit that has a tape deck, so not the most powerful radio.", Alex, Florida
"I just got through installing the door cards and used bluetooth to connect to my phone. Then I sat in the car and turned on a familiar playlist. OMG! It is awesome. I am no audiophile. I just wanted a decent sounding system. It's almost like using headphones. Rich bass clear and crisp and plenty of volume. I have another Miata and I think I have to put a set of your speakers in that one too. I could not be happier. ", Rich, Michigan
"Just installed your speakers in my 2001 Miata and could not be happier. From the ordering to the installation your guidance was spot on and the speakers sound awesome! ", Patrick, Connecticut
"Just received the M800 door speakers and Millennium-5 headrest speakers. Within 20 minutes after opening the box, I was done with the installation, and all I can say is WOW! Not only are they the easiest replacement speakers ever, they sound incredible even with the stock head unit. Thank you!! ", Todd, Pennsylvania
Just installed the M800 and they really do the job. Between those and the M200s it's like a whole new system and didn't have to push the volume for normal listening. At rest 5 or 6 was good, now 8 or 9. I cranked it way up just to see and the speakers handled it well. I'm an old timer and over the decades one of the first things I would do is upgrade speakers, usually doing the work myself. This has been one of the easiest and best upgrades for the money I have ever done. Great job!!" Bob, Oregon
"I installed my speakers today and they are absolutely fantastic! I've read great reviews about them but they completely exceeded my expectations. It's hard to believe the sound difference with just a speaker change while still using the factory head unit., Alan. Vancouver Canada"
"I’ve just finished the installation and...ESPECTACULAR!!! Congratulations for this high quality product strongly recommended.", Gabriel, Madrid Spain"
"I was quite a bit sceptical. I just finished installing them. I'm blown away. I thought that there might be a just little difference, but I was wrong. These are phenomenal speakers. They "hit" hard. I don't think these will require an amp, but it's nice to know that these will handle an amp. They really make my factory head unit sound materially different. Honestly, I was extremely sceptical. ", Brad, North Carolina"
"Just installed the M800 and Baffles in my 1990 Miata and they are awesome! I have never sent a review to any manufacture as I always expect good results from any product but these are amazing. Thank for a great product and excellent service", Armando, Georgia"
"Holy {bleep}!! These speakers are amazing!! They really sound good!! I’m a believer now!! Larry, Maryland"
"Just wanted to let you folks know that the m800 speakers I purchased were almost too easy to install and they sound fantastic. Keep up the great work! Bob, Rhode Island"
"I just installed a set of the M800 speakers from 3rd Millienium and in comparison to the Polk DB651s that I installed last summer in my NA, M800's sound output over the OEM and in my application, the Polk's, is astonishing. My complaint with the Polk's was a lack of bass response. The M800's restored everything I remember with the OEM speakers, plus a huge increase in clarity AND bass response. At this price and being a direct fit, no drilling required, they are hard to beat." Chris, Worcester MA
"Just installed the M800's in place of the Pioneers' today and I am very happy with them! I am by no means an audiophile and had given up on my Miata in regards to a decent sounding system. Your speakers have "more" of everything !!!" Jose, Glendale CA
"Very pleased with the M800s. My husband installed them in under 30 minutes." Cory, Texas
Here's what you get:
Shipping in the US is via Priority Mail or UPS Ground for large orders. Priority Mail offers a 2-3 day delivery, a history of safe handling and delivery, and full package tracking.
International orders are welcome! We cheerfully ship anywhere in the world via US Postal Service First Class International service which features a 5-10 day delivery time for weights up to 4 lbs total. Please note that any duties or taxes assessed by your country's customs authorities are your responsibility.
To see shipping charges to your location, add your items to the shopping cart and then select your zip code or country. We do not mark up shipping charges!