S10.4

A perfect match to my KRK V4S4 with the crossover set at 80hz. My JBL LSR310 sub had problems keeping up with the V4S4 output, even at -3db. Turning the JBL up to match output caused it to bottom out on bass heavy movies. The S12.4 stays clean & makes the bass needed to blend with the V4S4 with headroom to spare. Combined they are a soundbar killer. I've never heard a $4k soundbar but I'm guessing that's the starting point to match SQ of my set up. I'm using a Geshelli J3 DAC with V7 Classic opamps & a Topping A70 Pro as the preamp.

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!

Hands down the best subwoofer for a medium-sized room. Insanely responsive! It can hit those 20 Hz minimums without breaking a sweat. This thing gets LOUD. It's a hefty boy due to having the amp installed. We call these active speakers, kids. It is compact and will easily slide underneath your desk. I paired my subwoofer with the KRK Rockit 7 Gen 4s and have absolutely no regrets. The flat harmonics make this setup perfect for monitoring and music production.

Sub is more than what I expected. Bass is amazing and it totally adds to my home DJ system !!

Amazing sound. Finally got to pair the 8 inch sub with my krk v8 series 2 monitors I got in 2004, which still to this day, are my daily monitors for my log cabin studio. This added that low end I was lacking. Now just to get a center and surrounds. I think I’ll aim for a small rokit kit for this.

Definitely packs a punch. Great with my krk monitors. Very Loud. Build quality is exceptional. Worth the wait.

Best sub match perfectly with my KRK Rokit 5 the quality it’s amazing 🌟🌟🌟🌟🌟🌟

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.

The KRK S10.4 is an exceptional studio subwoofer that delivers outstanding performance and accuracy. With its powerful and precise low-frequency reproduction, it enhances the audio experience and brings an incredible depth to your music, movies, or any other content. One of the standout features of the S10.4 is its impeccable build quality. The subwoofer is solidly constructed with high-quality materials, ensuring durability and longevity. The attention to detail is evident in every aspect of its design, from the robust cabinet to the finely tuned components. When it comes to sound reproduction, the S10.4 truly shines. Its 10-inch woofer produces tight and controlled bass, delivering a rich and immersive low-end response. Whether you're mixing tracks in a professional studio or enjoying your favorite movies at home, this subwoofer adds a new dimension to the sound, allowing you to experience every nuance and detail. The S10.4 is also highly versatile, offering a range of connectivity options to suit different setups. With balanced XLR and 1/4-inch inputs and outputs, it seamlessly integrates into any studio environment. The inclusion of a footswitch input for bypassing the subwoofer or engaging the subwoofer mute function adds convenience and flexibility. Another noteworthy aspect of the S10.4 is its advanced control features. The subwoofer comes with a comprehensive set of controls, including a variable crossover frequency, phase adjustment, and a ground lift switch. These features allow you to fine-tune the subwoofer's performance according to your specific requirements, ensuring optimal integration with your existing speaker system. Furthermore, the S10.4 boasts a sleek and stylish design that adds a touch of elegance to any space. Its compact footprint makes it suitable for smaller studios or rooms without compromising on performance. The front-firing configuration allows for easy placement, while the included isolation pad helps reduce vibrations and improves overall sound quality. In conclusion, the KRK S10.4 is an outstanding studio subwoofer that exceeds expectations in terms of performance, build quality, and versatility. With its powerful and accurate bass reproduction, extensive control options, and sleek design, it's a perfect choice for audio professionals, musicians, and enthusiasts alike. Upgrade your audio setup with the KRK S10.4 and prepare to be amazed by the immersive and detailed sound it delivers.

Excelente equipo, un muy buen complemento para los monitores de la misma marca.

Great sub love it

Había comprado un Adam Audio T10s, pero lo devolví por que no tiene opción de deshabilitar el encendido automático, y eso causaba que mis monitores hicieran un pop molesto que me daban la impresión de dañar los monitores, además de tardar un par de segundos en reproducir audio. Y qué bueno que devolví ese subwoofer para comprar este, aunque a mi no me engañan, el que compré fue devuelto, lo sé porque luego de varios días de esperar a que lo vendiera Amazon MX, el que compré fue el único y luego se volvió a acabar el stock, pero bueno, ojalá todo salga bien. Estoy satisfecho con el desempeño de este subwoofer, tiene una suspensión gruesesita para soportar 30hz a buen volumen, y bajos precisos, pero eso solo se logra desacoplándolo del piso, lo tengo con una base para subwoofer de isoacoustics, la iso 200 sub y se las recomiendo, sienten claro el bajo en sus piernitas y en su pechito sin reverberaciones, cabe aclarar que lo tengo a justo la mitad del volumen, que a pesar de decir en las especificaciones que alcanza hasta 117db (no sé en qué frecuencia) no lo quiero estresar, además planeo comprar otro para tener un sistema 2.2 y así llegar a los 25hz planos, y reducir estrés y distorsión ya que el amplificador si se calienta (bueno vivo en el sur de MX, calores ricos) Me encantó, pero hay que saber jugar con las acústicas y el ecualizador ***ACTUALIZACIÓN AGOSTO *** Lo cambié ligeramente de posición y el subwoofer se siente aún más poderoso, le tuve que bajar de la mitad del volumen a exactamente 2/5 de su volumen y aun así tuve que reducir ciertas frecuencias con tal de llegar plano a 30hz, y la verdad no siento que me haga falta adquirir otro o más s10.4 para llegar a 20hz, pues pocas canciones llegan tan bajo, pero me gustan los excesos y estar sobrado, así que por qué no?, además si quiero reducir distorsión (aunque no la note) y temperaturas. Está de más decir que el sub sigue funcionando sin problemas.

It's Incredibly powerful for its size & produces clean tight bass, however I noticed the bass starts distorting once the sub gets hot but once you let it cool it sounds clean again. I'd avoid usage at loud volumes for long periods of time as the amp can get really hot. For mixing bass frequencies lower than 32Hz I strongly recommend going with the S10.4, I would've gotten that but I live in an apartment building and would never be able to get the most out of it without being a nuisance to my neighbors.