Behind-the-Seat >>> Subwoofer Plug & Play System

I bought this kit to get more bass out of my 2024 ford f350 and it did not disappoint. The kit came very complete with everything you need to install it, it even comes with a couple high quality tools to make the job that much easier. The only thing I could say that they could improve is to have QR codes for the power wire and subwoofer install videos on the paperwork so it’s easier to access them. But other than that I’m super pleased with the product and the sound. Also the support team email works great and they get back to you super fast!

Went from a JL W3 8" that was under the rear passenger seat to this behind the seat sub and wow what a difference. The JL hit harder but the sound quality from this sub is much cleaner. I'm using the Mobridge a2b amp and paired up with this sub sounds amazing for sure. Fitment was quite tight to say the least (probably my error with install) but totally cleaned up rear cargo area from the prior sub. I was expecting the 8 weeks to delivery but was pleasantly surprised at just over 4 weeks. Chose not to do the amp rack because i was able to drill new holes on the OEM amp rack to install the Mobridge A2b. Overall great product, great service and awesome sound.

An incredible system that comes packaged very well sounds amazing, even with as little as 500 W; it rattles inside my truck. I definitely recommend watching all the installation videos on their YouTube channel before starting—this made the install a breeze once I understood where everything went. Many questions come up about where the power wire should go, and for my lightning, I ran it from the passenger side through a small opening to the undercarriage near the battery packs. Then I came up the passenger side in the rear—it's a little scary drilling into your truck, but they provide everything you need for the installation. I ended up running the ground right next to the amp; there's a factory ground nearby. I just sanded down some of the paint in the middle, and it worked perfectly.

Firstly this subwoofer box is an awesome product and it sounds incredible. I am super impressed with the fit and the sound quality. I am almost more impressed with the customer service from sounds good stereo. I had a very strange issue that was not really anyone's fault but Don and the SGS guys went above and beyond to get me taken care of.

Got this to replace factory sub without losing and space in the truck and these subs are amazing, they fit perfectly behind the back seat with no cutting or having to move the back seats. Theses subs are way better than the factory sub, I didn’t know what to expect out of 2 6 1/2 subs but these hit surprisingly hard the truck actually has good bass now. I would recommend these to anyone 10/10

I have a 2025 F-150 Platinum Plus with B&O
Unleashed and the PowerBoost. This is a great package, both are excellent quality! The instructions tell you to remove the factory jack, but that wasn't really an option for me. I got to looking and noticed I could rotate the jack mount 180° and it would bolt right on top of the amp racks mounts! This leaves about 2" between the amp rack and the jack when fully installed. This left me plenty of room to mount my NavTV Zen Power 9 (F25) to power the door speakers and an audio control 800.1 for the sub. This is an EXCELLENT combination, the NavTV DSP and power output for the door speakers is phenomenal, makes the factory B&O speakers come to life. The NavTV also has a 500 watt RMS subwoofer output that will power this sub perfectly for most people, but I found it to be a little underwhelming for me personally and wanted more power so added the AudioControl to the NavTVs preamp out which also has full DSP control. Sounds phenomenal for the basic plug and play setup. NavTV recommends running a dedicated power AND ground to the 12v battery under the hood. However, this being a PowerBoost, there's already a 12v AUX battery under the rear passenger seat. This battery is on its own 125 amp fuse with a 6ga wire straight from the battery junction box under the hood. I'm powering both amps straight from the 12v AUX battery with zero issues. Under full load, there's less than 0.5v of voltage drop between the terminals on the amps and the under hood battery. There's mixed reviews online of people doing this, so do it at your own risk, the way the PowerBoosts electrical system works, I think this is a better solution instead of pulling power from the under hood battery IMO. My one complaint, and I will probably fix this, is the included nylon spacers that lift the amp rack off of the floor 3/4 of an inch. This is an issue because the top right of the amp rack is pushing up against the bottom of the TCM connectors pretty hard, I'm worried over time they will break. Overall a solid product, they really should inform their customers you can reinstall the jack by simply flipping the mount. I will say when the bottom of the seat is folded up, there is some contact with the amps, but not too much to worry about and I rarely fold my seats up.

I had been searching for an option that would give me more bass on my 2023 F-350 Lariat with B&O Unleashed. After reading the reviews, I pulled the trigger on ordering this sub enclosure with the Sound Treatment kit. I am beyond happy with the results. It is a perfect balance of bass for the B&O. These 6.5" subs are very impressive. Enclosure is engineered perfectly for behind the seat. I highly recommend getting the Sound Treatment package as well. The sound is more full, doesn't have the hollow effect without the treatment. And best of all, with my music cranked to the max that I listen to, NO RATTLES on the outside of truck. Had enough to do all 4 doors (inside and out), all 4 door panels, and the rear panel of the cab.

I broke down and got this enclosure/sub combo on Black Friday and super thankful I did. I had a single 10 in a ported box behind the front seat and needed to regain the space for clients and equipment. This set up went in easily and the videos online helped with the install. Fit and finish is great and the sound is solid. The lows are tight and punchy and the system pairs well with the JL speakers I have in the rest of the truck. Awesome support from the team when asking questions. Would definitely recommend for your F150.

Installation was easy, but I have experience installing stereo systems. The stealth sub system images my truck complete with the sound and bass hit beyond expectations. Highly recommend to anyone looking to upgrade their system and still have full functionality of there truck and cab space. I also added on the JL audio upgrade door speakers.

I took my F150 to pro tuner after finishing my install, 9 channel DSP. The guy went on and on about the sub performance during the tune he set the crossover at 25 Hz. Today I got a follow up message from him.
“it’s honestly a great setup you have. I’m very surprised by how low the subs play as well, plus it doesn’t take up any space at all”

2024-F-150 B&O 8 speaker. I bought the stealth box, kicker keyloc with harness for roll off correction, rear door and rear wall block-off plate, and two rear JL audio speakers for the rear doors. I added one 5 channel amplifier to power the stealth box and 2 rear JL Audio door speakers. It was easy to reroute the two rear door speakers in the provided harness to the amp and back in the other side. Basically, front speakers are still B&O and the rear is Sounds Good Stereo. I'm really happy with it.

All I can say is Wow!!! I’ve had custom systems in all my vehicles for quite some time with 10’s and 12’s etc and I can Not believe how bass ass these 6.5’s are. I was super skeptical but I just gambled and went for it because of the custom fit. If you’re on the fence just do it. You will not be disappointed 👊🏻

I was so excited to find these guys online, well worth the money and the wait. The system is everything I wanted in my truck and so clear and of the highest quality!! I’m looking at doing my Mustang next after watching their videos of another stealth system, thanks for this guys!!

Easy installation for me since I’ve done this in my younger days. Detailed videos help anyone to be capable!