KRKS8.4 S8 Generation 4 8" 109 Watt Powered Studio Subwoofer

I was first struck by how huge this thing is, it’s also very heavy. The build quality is great, I would imagine the magnet is a hulking thing, not sure what the cabinet is made of maybe abs plastic perhaps.Now this thing puts out bass you can feel, window rattling bass, oh so much bass! It is also well behaved, within a half hour or less of no signal and she’s in standby mode, not half a day like that garbage Klipsch sub that lasted barely over a year, or that Polk sub that was defective right out of the box!I would recommend this sub very highly, if you’re scared by the price, don’t be, it’s worth every penny, remember, you get what you pay for. Runs circles around my previous two subs.

I was looking to add a sub to enhance the bass in my music. I'm a long-time audiophile who has owned many subs over the decades. My fronts (JBL 530s) are beautiful but have only 5.5" drivers and drop off precipitously below 70hz. The bass in my music is played by instruments, not computers- nothing below 35hz is needed. This placed me in the market for a tight 8" sub. A key attribute I demanded was the ability to defeat the "Standby" setting, as a sub turning on and off is unlistenable to. (Don't believe the BS that you can't hear this.) The KRK 9 emerged and I purchased it. It has a perfect set of back-panel controls. I calibrated and evaluated everything using test-tone webpages and careful listening to music I know by heart, a method easier and far more accurate than YPAO. This sub is heavy, solid (no rattles/ "booming"), no hum, and plays well in the octave I need. Yes, it's expensive, but it actually enhances my sound quality for music. I've attached a photo of the optimal controls when paired with very capable bookshelf speakers. There is a 2009 remaster of "Seconds Out" by Genesis and in the song "Firth of Fifth" you hear clearly and distinguished the bass guitar and bass drum. This is a new revelation to me for an important piece of music. Bravo!

IT BANGS!!!! Excellent sound.

Subwoofer was shipped promptly and reached my house within a couple days. Package was in pristine condition and this thing sounds SO GOOD. Was wanting this to complete my home studio setup, since I already have the 8" Rokits. If you're on the fence about getting the subwoofer, just do it. This makes mixing the low end in heavy music much easier and a lot more enjoyable. Great sound, very well balanced and powerful.

Love it! Can't believe I waited so long to enjoy the low end while mixing!

Definitely the missing piece to my existing 2 speaker KRK set up! Decent value for money, good volume control, and great clarity. The size is very awkward and requires a lot of space. The weight is also a little much and is hard to maneuver. My favorite feature is the sleep option that you can toggle on and off. There's no bluetooth that I'm aware of, but as far as connecting everything correctly, it was easy to decipher.

Bought from Amazon, nice price & great sub for the $$. Arrived in a brown cardboard box w/ KRK on it for shipping that then had the sub inside. Deep tight low lend, using it w/ Kali LP6s for DJ play back. I have it in the corner on an Iso Acoustic Stand. sounds great. Would be ideal if it came w/ the grill but oh well.I "could have" gotten the JBL 310 that's only $299 right now but I just didn't want a sub that came out in like 2014. the KRK and Adam T10 are the only more recent subs that come to mind. Went w/ this over the Adam even though I also own Adam T7Vs.

Big ol booms. Love these speakers.