Hands down the most Musical, Accurate and Deep Bass I have heard from any subwoofer that I have owned.

I have had several of your subs and tons of super subs including the Magv3 and this is Hands down the most Musical, Accurate, and Deep Bass I have heard from any subwoofer that I have owned. My previous favorite was the Eclipse Titanium SW9122 and I finally found a sub that could beat it in low end and clean. You have truly outdone yourself with this one as I wasn’t going for SPL but blending well with my existing 12 speaker Infinity System in my Hyundai Azera and Low end extension and this has blown me away. Kudos and thanks again!!

Can’t believe how good this thing sounds!

I didn’t waste any time getting the speaker in and wow man.. can’t believe how good this thing sounds!  this ported box is perfect for the SQL.  it’s a smidge less accurate than my rm-15, but the rm is in a sealed box so that’s expected. Still, the best ported set up that I’ve owned so far. The SQL must sound amazing in a sealed box, and now I’m wondering what dual SQL subs would do in my trunk sealed! If I decide to go sealed later on, I’m ordering another one of these.  Thanks again Nick!

MASSIVE Ultra low end with complete accuracy

Im using a pair in my Home Theater…I install Home Theater for a living and I’ve heard many different subs on the market… This IB design is the cleanest , tightest bass I have heard even rivaling and besting most brands at CES that cost thousands more…MASSIVE Ultra low end with complete accuracy and only on 1800 watts RMS ….any more and my house probably wouldn’t survive… If you have the correct space for IB it WILL make a believer out of you!

I have a pair of the IB 24’s mounted in my Home Theater driven by a Crown XLS 2502…Having upgraded from a very inferior Ultimax pair of 15’s there is simply no comparison ….There are several words to describe the IB24’s ..mostly, very accurate..ultra low-frequency response…massive LFE waves that can that go through your body even at moderate volume level…I have several Organ pieces, Symphony, and solo that easily reach down to the single-digit Hz with authority…. easily the most significant upgrade I have ever made to my Home Theater … If you happen to have the needed requirements for Infinite Baffle application, I highly recommend these IB24’s …because everything you’ve ever heard about IB is true..and IMHO spending several thousand dollars on huge pre-built sub-woofers is totally unnecessary.. and you cannot ask for better customer service than Nick Lemon and his team @ Stereo Integrity…

The sub loves going into the low frequencies with impact and an anger you rarely see but with great control.

This subwoofer is an absolute monster. Nick built mine for me back in 2018 and was excellent with communication/photos and knowledge on any question I asked him. I made a silly attempt at an IB install with it which was my fault but then switched to a ported box that was probably way too small given what changes he made to the woofer for me to attempt IB. That’s the other wonderful thing…he will build to suit your install, even signed the cone for me. The sub loves going into the low frequencies with impact and an anger you rarely see but with great control. I struggled to even get the cone warm…never smelled cooking coils or anything. I took it to task on multiple 2+ hour drives and it never wavered. Wonderfully built and performing.

I still own it and even though it’s sitting quietly for now awaiting it’s next challenge I will be looking to the company for my next conquest SQL (!)

Thanks again sir.

I would totally recommend this sub to any competitor or enthusiast looking for true low-end clarity and detail.

“30-day update:
The installation of the SQL-12 took some “maneuvering” to get into the same spot my T1D412 was in, but it fit! You can barely slip a piece of paper between the magnet and the plexiglass inside. It was close, but no major enclosure change was required.

After a month of breaking in, the resonance frequency IS dropping very nicely. The super-low room-realism extension I was hoping for is there, and getting better by the day. Bass blending with the front stage has been challenging, yet fun. The footsteps on “Dock of the Bay” and “Grandma’s Hands” are there….and prominently!

I would totally recommend this sub to any competitor or enthusiast looking for true low-end clarity and detail. It has been a joy so far. Thanks to Nick at SI for getting me one!”

Unbelievably loud, clean, and efficient

Took a chance and preordered this subwoofer because of the great things I’ve heard about this company. I’ve been running ported boxes for about 8 years and never thought to try a sealed box. Now that I have kids, I’m unable to utilize my whole trunk for car audio. So, I did weeks of research before I came across this company, Stereo integrity. Stereo Integrity is a bit of a different company from others. The majority of their subwoofers are built for and excels in sealed enclosures. I can’t think of another company that’s quite like them. I have my SQL-15 in a 1.9 cubic ft. box with a little bit of polyfill. The amp that its wired to is a Rockford R2-1200.1. This woofer is unbelievably loud, clean, and efficient. It also extends very low, which is what I love. It doesn’t even sound like it’s in a sealed enclosure, its more reminiscent of a ported enclosure. I’m very happy with my purchase and I’m planning on trying more of these guys’ products. This is coming from a guy that has owned just about every major brand’s subwoofer. This SQL series will definitely make you hate whatever you’re currently ruining, trust me. Stereo Integrity for the win