SWS-6.5X Shallow Subwoofer

Sounds great

These were direct drop ins for my 2012 BMW X5M...they sound pretty solid. Will be putting a small amp on them soon

I paired these up with the JL Audio xd600/6 crossed at 120 hz and it is pure audio bliss. The bass is thick and rich. Is not club style throbbing bass for EDM, but for rock, funk, disco, soul, it is excellent— tight, articulate and powerful. Everybody who I demonstrate my car audio comments on how clear and tight it sounds and I get immense enjoyment from listening to it every day. The only thing to be aware of is that as other people have commented, you need to be prepared to creatively make the area on top of the subwoofer provide an inch or so more clearance for the subwoofer to move back-and-forth without hitting the grill. I accomplished this by putting a piece of wood as a spacer on the two sides of each subwoofer and then getting extra long 2 inch screws to screw the grill back in. It is completely not noticeable after closing everything up because this area ends up being entirely under the seat.

I bought Focals for the doors and replaced my 676 HiFi amp with the Match up7BMW. I am not a basshead but these do kick the punch and are more defined than the stock speaks. Work great in my E84, X1

They’re not mind blowing upgrades but they definitely are much better than the original ones. Much better reverberating bass and thumping bass. Better register and pretty clear. Be careful cause you do have to remove the top protector so stuff if in the floorboard will roll onto them sometimes, coins and paper are the worst lol. Other than that great.

Dropped these into my BMW G30 5-Series as drop-in replacements, being driven by the stock hi-fi system. Big upgrade from stock, well worth the money. I waited too long to do this, should have been one of my first changes. Nice mid-bass kick, sounds like it should have all along. I may add a dedicated sun later on, but enjoying these very much for now.

They add bass but it's boomy. We made small sealed boxes stuffed with poly fill. They are under the front seats in our 2016 JK Jeep Wrangler Unlimited. They are both powered by (1) Pioneer GM-D8601. They do add missing bass but they have a very boomy bass response. Modeling them in a free program called Winisd, in their ideal sealed box volume, they have a 3db peak between 50 and 60 hz. No matter how I alter the box volume in the program there is no way to get rid of this peak. Using a better double din car stereo like the Kenwood DDX774BH you can reduce some of the excessive boom-iness using the equalizer. Our not ideal small boxes have about a 5db peak which makes everything sound excessively boomy. We just moved our DDX774BH to our daily driver and put the DDX272 back in the Jeep. The Kenwood DDX272 lacks the better equalizer so we had to turn the subwoofer way down to alleviate the boom-iness. We have had them in the Jeep for about a year and they are still going strong. Pros: +Affordable +They add more bass than any normal car speaker can +Play plenty loud with clean power Cons: -Boomy

Fitment for the 2010 BMW X5 (E70)... Time is 1.5 to 2 hours 1. remove seats (unhook battery prior to unplugging ASR) OR unbolt seats and tip them WAY back 2. remove old speakers from housing 3. on the lip plastic lip put a thin foam tape to seal it.(careful not to overlap) 4. place the speaker directly on the foam tape. 5. use a bunch of the foam tape to block the wire port left by the old speaker. 6. place new speaker in. 7. Place foam spacer OVER the speaker edge. 8. Place plastic housing ring that comes with the speaker over that. 9. obtain and using 1" screws, secure assembly together 10. Place back into sub box under seat and secure. 11. follow the +/- guide on the old assembly to hook wires up. I used wire nuts, but you can use the lugs. 12. you will not be able to put the cover back on, so, you can leave them off or just figure something out to cover the holes. I just left mine uncovered. You do whatever you want. 13. Test speakers. 14. obtain a total of 8 washers for the seat. 3mm in thickness, and place these down on the seat track bolt holes. These are for clearance of the seat track and speaker housing. 15. Secure seat. Done.

I got 2 of these to replace the factory under seat woofers in my BMW. For what it is, it really makes great bass, certainly much better then the boomy and soft sounding Harmon Kardon system that came with the car. So instead of just hearing deep sounding bass, you can now feel it. On top of that, the factory speakers can't reproduce the really low bass. From my experience, the bass rolls off at nearly 100hz! So anything under 100hz, you can barely hear it. With the new amp and these speakers, you can hear all the way down to 20hz. You can FEEL it all the way down 20hz. Of course, these will never be as powerful as a 12" sub box in the trunk, but if need as much trunk space as I can get, then these should satisfy your bass needs without sacrificing any trunk space. FYI, I paired this with a Kenwood 500W (@2ohms) mono amp and it's a great match. A mistake many people make is getting an amp to match the speakers RMS handling 1:1. However, to properly power subwoofers, you will want an amp that's 1.5x to 2x the RMS handling power. Also, if you're putting this is the BMW F30, you will need the adapters and remove the little "fins" inside the sub enclosure to make this it properly.