Earthquake Sound SWS-6.5X 6.5-inch Shallow Woofer System Subwoofers, 4-Ohm (Pair)

So after one of my logic 7 subs went out and I decided to buy the dual replacement and replace both subs. The amount of bass these subs put out compared to the upgraded BMW original sound system..... Oof!!! Not even a comparison!! These sws 2ohm are worth every freaking penny!!!! The install took me about 20 minutes each side and the sound performance is just on a whole nother level. I've never heard of this brand but I'm telling you, if you're looking for a bass upgrade, this is the way to go!

Installed this on my bmw i4. Great quality sub. Easy install . Sounds way way better than stock . I can hear some bass in my system. I have the HK system in my car. Can't give this sub enough props!

Went with these in replacement of the more expensive "ghost woofers" and I'm glad I did. These sound way better! But what I found out the hard way is that the rings/gaskets that these come with are so weak, they broke apart both times. I need to order more of these but just haven't gotten around to it. But, if with the missing gaskets, the sound great! Get these

This is my second set. I sent to much power in the first set and have since changed the amp they’re on. I was running 150 to each and honestly they didn’t handle that for too long. I’ve since switched over to my 55 w a channel and it’s perfect for my jeep. I’m not wanting people to hear me coming from blocks away. These fill the mid bass area quite well. Impressive sound with just 55 watts running them. Def recommend them just watch how much power you run to them.

I have run 2 of these off a Kicker Key500.1, set gains with my Fluke DMM to 100w RMS a piece to see how they handle better power than BMW HiFi amp (40w RMS a piece). I had to basically not send any power at these at all, they start cooking pretty bad. I have headaches when I drive from the glue burning up on the voice coils. They just dont stay cool. I also run an RE Audio XXX 12" on 2000-2400w RMS in same vehicle. The SW8s were more for 60-150hz and my XXX for 25-60hz. Either way, there is no way they could ever handle 150w RMS a piece. Not happy with these at all. I will probably buy a couple Kicker 8" L7Ts and fabricate custom enclosures under the seat for them for what Im looking for, and send those an actual 500w. Read positive things, but as an installer, I have blown 2 subwoofers. 1 was over 20 years ago on my second install for a buddy in high school. The second was because a customer insisted on me using a crummy $75 used Crunch walmart amp to try and send some Planet Audio 15s 2000w (some of the worst amps in the market).If you run an unclipped signal to these, I wouldn't push em past 60w a piece, they simply cannot handle any power.They sound alright, but after 1 minute I cannot stand the voice coils burning up. These speakers are not for me.

Great tight bass. Perfect fit for the BMW.

Connecting hardware and trim is very cheap speakers went in my 2012 750 BMW under the seats.

Purchased these to replace the under seat subwoofers in my BMW 550i. The description for these speakers is as follows:"Designed to replace the BMW factory speakers that are located under the front seats, the SWS-8X requires no modification. Simply remove the seats and replace the factory woofers with the exact-fitting SWS-8X woofers to improve the sound quality of your mobile audio." HAHAHAHAHA! Yeah, right! Installing these is a royal pain in the backside. With the existing contour of the enclosure, you need to remove all of the partitions to accommodate the depth of these speakers and that's still not enough. I added weather stripping around the lip to raise the speaker enough for installation, and as a preventive measure for rattling.Another pain is, which is not mentioned, you need to purchase a separate installation package is sold to wire them which involves cutting the existing connection off and installing spade connectors for attachment. I had good speaker wire and went to the local hardware store for the connectors and saved myself $40. The least they could do is include the spade connectors......Once installed, these speakers, paired with the Bimmertech PP82DS, perform well and provide the boost I was looking for.