Infinity Kappa 800W Subwoofer With Selectable 2 Or 4-Ohm Impedance, 8-Inch Size

Great

It produces surprisingly clean low bass. You can use 250 W @ 2Ω RMS power, over than that it starts struggling. You need a small but strong and heavy enclosure otherwise enclosure can't hold the woofer load.

One of best speaker I bought. Delivering excellent bass without any distortion at rated power. Fixed with crown CDI 4300 amplifier.

It has cracking sound , maybe my luck is to have one with factory problem. Am trying to replace it with warranty but still no answer and no refund till now.

Fentastic punch when paired with a good sub amplifier. I am using it in a small sealed 0.75 litre plywood enclosure in my pretty large 4WD SUV in the boot. Extremely tight bass, no noticeable distortion and very good support to the already good factory fitted woofers. I would recommend buying it without batting an eyelid, if you are willing to take the pain of getting a custom enclosure made by a carpenter and pairing it with a good 400W subwoofer amplifier.

Anteriormente tenía un subwoofer de 10”, digamos que uno normal, cabe recalcar que no cambie de amplificador, sin embargo, le di un poco más de potencia a este Infinity, aproximadamente lo tengo trabajando a 300 RMS, les recomiendo plenamente que usen un cajón puerteado si buscas que la presencia de bajos sea marcada, pero con las especificaciones que el manual dice para un mejor desempeño. En cuanto estética es muy llamativo, es hermoso la verdad.

Tried sealed & ported, if you’re going, sealed the smaller, the box, the more power you need, and if you go much bigger than optimal .4 ft.³ you might as well throw a port in there, I’ve settled on a .8 ft.³ 3” port 10.6” tuned to 43Hz and yup that hit the spot, that’s a cross between sealed and ported (port 2” from back of enclosure) and yes this woofer drops off silent at exactly 34Hz just as the spec sheet says, now one of these rattles my entire living room like a 12” HT sub, 2 may be way over kill in my coupe we’ll see, oh ya and I’m an SQ guy, this driver ported is NOT sloppy like larger drivers, although I favor sealed designs, this specific driver, I think sounds better, Ported, even for sound quality, I am not and will not push this driver to its limits. 200w @2 ohms is more than enough I guess the most important thing is to let this thing play for a half a day at mid volume 4-6 hours +/- it really does start sounding better and better …….have fun Ok edit: I was thinking I’m gonna need 10’s, nah, slipped them into this BBox after they broke in , don’t need 10’s these 8’s are normal 10’s. …...8 ft.³ ported is all these suckers need. Or .4 ft.³ sealed. Before breaking they had a lot of snappy bass after 10 hours. They have a deep and full chest thump, you can hear these well outside the car for sure, and they do sound a lot bigger than they are Now running them sealed .40 ft3 splitting 600w to them from a PPI ATOM series amp, and they sound excellent, of course I cannot turn my head unit up past 28 of 35 gain is at 1/3 with an input signal of less than 2V ……crazy stuff, they easily rival my old school JBL GT 1000’s, you can even cross these a little higher into the Midwoofers range if you like, and cross them to a mid range in Tweeter for some home stereo sound, I’m content

Mounting depth is long, but sonically hits extremely well. I mounted this to the rear trunk deck oem sub location of my 2016 Audi S3, replacing the oem B&O sub. Excellent!!