100 Day in-car Trial
Try our products for 100 days. If the sound doesn't completely blow you away... send them back for a full refund. No questions asked.
4 Year Warranty
We back our products with an industry best 4-year warranty. If anything happens withiin that timeframe, we'll send you a replacement ASAP.


Give your car a whole new lease on life.
From every day cruises to long road trips, you won't believe how every song sounds. Join our 100,000+ global customers who love turning their music up.







Studio Quality Sound, Now In Your Car.

Exceptional Audio-Highs, Mids, & Lows.
Experience sounds you never knew existed in your favorite songs. It will redefine what a roadtrip soundtrack means to you.

Larger Sound. Same Profile.
Designed to easily swap out your existing speakers from the factory... but with 10x the sound quality & fidelity.
Seamlessly Replace Your OEM Sound System
What You Can Expect From A Bavsound Purchase

Love Of Sound
Exceptional Audio Fidelity
We took your factory speakers and re-engineered our upgrade for one thing: clarity. So you can simply swap your original speakers for ours without changing anything else in your audio system, and the result is smooth, natural, yet unbelievably detailed reproduction of your favorite music.

Easy OEM Swap
Same Dimensions, Higher Quality Throughout.
We engineer our speakers with the same unique size, shape, connectors, impedance, and efficiency as your factory speakers. That means installation is as simple as unbolting your factory speakers and bolting ours in, and it's totally reversible, too. No one will ever know you've upgraded your audio system except you. Unless, of course, they hear it.

2 Hour Install
No Expensive Install Process
Ever put together IKEA furniture? Then you can install the Stage One. Includes step-by-step instructions, and is designed to be easy enough that anyone can install it in just a few hours.

Music As Intended
Enjoy music as the artist intended.
We engineered speakers to produce higher quality sound: a wider range and more balanced reproduction of the bass and treble you are currently missing. That's because, unlike your car's factory speakers, we use proven audio technology: woven fiberglass cones, butyl rubber surrounds, and silk composite tweeters.

Full Purchase Support
Flexible Purchase Options, 100 Day Returns, & 4 Year Warranty
Pay-in-4 available, plus try it for 100 days in your car. Install, audition, and fully experience your new audio gear. If you don't love it, we'll cover return shipping and give you a full refund (U.S. customers only).
Now that's an easy purchase.

Making Install A Breeze
Checkout Our Step By Step Install Videos.
Make your install process as easy as possible with our step by step materials.
Customers Love How Easy It Is.
Hear an immediate improvement in your everyday drive soundtrack.




Blog posts
Think Your Car Has Great Sound? Here’s What You’re Not Hearing.
When you dropped serious cash on your BMW, MINI, Supra, or Rolls-Royce, you expected top-tier performance in every corner — from engine to tech to sound. And hey, we get it. The badge says luxury. The car feels tight. The driving experience is unmatched.
But the audio? It’s probably not doing your car justice.
Your BMW EV Deserves Better Sound—Here’s How to Fix It
So, you bought a BMW EV. Nice move. Whether it’s the i4, i5, or i7, you're behind the wheel of something pretty special—quiet, fast, tech-loaded, and smooth as hell.
But let’s be real for a second…
Why does the sound system feel like such an afterthought?
The Truth About BMW’s Factory Audio (Even the “Upgraded” Stuff)

The BMW E38: It Deserves to Sound as Good as It Feels








- Reviews
- Questions
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2003 E46 convertible - sounds better than the HK speakers - give them a chance to "break in"
I bought the BSD.S1.E46.CV.THF-Kit this past May. If you're like me, I didn't mind the sound of my car's Harmon Kardon speakers but wished they had more bass. When I would turn up the bass on the head unit (standard Business CD), the bass would just sound muddy, so I always left it at the normal setting. This year, my right-front mid-woofer made a crackling sound like it was blown, but that crackling went away the next time I started the car (not sure what happened there). However that gave me a nudge to buy the Bavsound speakers. The installation was straight-forward. I downloaded a .pdf for how to install, that was relatively easy to follow, and I believe that would be the same for most people as long as they have the trim tools needed for prying-off trim clips and panels. After installing, the speakers sounded "good" but they sounded like the left-front speaker was louder than the right-front. I thought maybe I'd connected one of the mid-woofers backwards or there was a problem with the mid-tweeter on the right side. I took the door cards back off, but no problem found. I swapped mid-tweeters from one side to the other, but the left-front still sounded louder, so I set the balance two "ticks" to the right to make it sound normal. Maybe 3 days later, I was driving into work with the music louder than usual. After work that day, I noticed the right-front had become louder than the left front, so I set the balance to the center to make it sound perfectly, and has ever since (maybe 1 1/2 months now). I say all this to say: if you notice the left-front slightly louder than the right-front, then crank some music for a few days and it will even out. I'm guessing those speakers just had to "break in". Now, I really do like how these speakers sound. They are noticeably better than the HK's were. "There's more there" to the sound is how I'd put it in words. More detail you can hear. Basically no harshness. All of these woofers/mids/tweeters from the kit play harmoniously together. There's a little more bass than the HK's had. I wish there were more bass, but I would have to upgrade the subwoofer. I think we can all agree this kit is expensive, but where else can you find speakers made to work perfectly with the factory HK amp? I know that amp requires particular ohms for each speaker (around 2 ohms each) and connecting speakers with the wrong impediance won't sound good. I think Bavsound is the only company to offer speakers that match the ohms we need in our older BMW's, and they sound good too, so that's why I'm satisfied with my purchase.

Great product and price
Beautiful subwoofers that definitely put out more bass, hit cleaner, and can go lower in frequency. The best part is they are one of the more affordable options, and, based on competitor reviews, they are better than some of the more expensive ones. I'm a happy customer.

Quality speakers
Excellent installation guides. Well made easy fit units. Nice upgrade.

Speaker Install and Review
I purchased just the speakers to replace my existing stock speakers in my 2008 328i Conv. I must say the speakers are a great upgrade from the stock HI-FI speakers and the install videos were right on point. Everything was straight forward and the speakers fit perfectly. I could not be happier with this upgrade!

Bavsound Subwoofers
They sound amazing the delivery was awful they threw my package over the fence and it hit the floor pretty hard

Super easy installation with amazing sound quality

Customer service
Got the underseat woofers in my m340i with HK. They sound great but have a sound issue at certain frequencies. Still working on resolving this but just wanted to leave a review for the great customer service and support of bavsound. Highly recommend doing business with them as they’ve been trying their best to help and resolve my issue.

Very nice sound
I waited to give this review until after the break in period. After the necessary time I was able to set the sound how i prefer. The sound is so much better than the stock speakers. Very crisp highs and strong base. Definitely recommend the speakers. The only thing that was questionable was the lack of response when I had a few questions regarding the installation. I sent in a question two separate times and never received a response.
Bavsound.com
Thank you so much for your detailed feedback—we’re thrilled to hear you’re enjoying the improved sound quality after the break-in period! Crisp highs and strong bass are exactly what we aim for, so it’s great to know the speakers are meeting your expectations. We sincerely apologize for the lack of response to your installation questions. That’s not the experience we want for any of our customers, and we appreciate you bringing it to our attention. We're reviewing our support process to ensure messages don’t go unanswered in the future. If there's anything we can still assist with or if you have ongoing questions, please don’t hesitate to reach out—we’re here to help. Thanks again for your support and for recommending our speakers!


2001 BMW 325i convertible e46
Extremely happy with my stage one upgrade! I just purchased this vehicle and knew the factory speakers were going to be bad after 24 years. After installing a new Eonon head unit it, new speakers were a must! After hours of research online, I kept coming back to the BAVSOUND plug and play, quality sound upgrade, and over simplicity to just order the kit! Instructions were great, and a simple enough install for a DYI project. I had some issues with getting the rear tweeters first try. Their support was quick and proficient in helping me troubleshoot and resolve the issue. Thanks BAVSOUND! I’m extremely happy, but more importantly my wife is happier.However, I may not get to enjoy the car as much as planned because it’s now her fav…

2016 F30 328i Sedan
I purchased both the Ghost Subwoofers and Stage One speaker upgrade. While it was not completely plug and play for installation (mainly mounting); once installation was complete, it was night and day over the Hi-Fi system. Still working to break-in the subwoofers but so far the sound is amazing, as an Audiophile (home and car); I am throughly impressed with the imaging provided by the new speakers; more so you do not "feel" the subs, but you hear them and fit in great with the overall imaging of the system. Debating on purchasing the additional Amplifier for the system, going to wait until the sub's have broken in and also watch for sales or discounts on the amp :). Overall very pleased and in reality it is not that expensive for the full speaker upgrade, coming from home Hi-Fi audio, the price is incredibly reasonable, even having my independent BMW service center do the installation, cost was still overall reasonable. Looking forward to the subs at their full capacity and any specials on the amp. Eric, Phoenix, AZ If you're in the Phoenix area, I paid $450 for the complete installation at my independent shop.

Great product and easy installation

Bmw m340i
Sounds a lot better than the stock speakes

Great upgrade

Look good install on Thursday I’ll report

Purchased ghost woofers for X3
Great product and video to make self installation a breeze! Prompt to respond to email inquires and offer useful information.