Infinity Kappa Perfect 12 1d 12 subwoofer with dual 4 ohm voice coils
Infinity Kappa Perfect 12 1d 12 subwoofer with dual 4 ohm voice coils

An aluminum woofer cone is used, mounted to a precision die-cast aluminum basket using a high roll butyl surround. The basket is vented to provide additional cooling of the motor structure. Maximized for performance in small sealed, vented, and bandpass enclosures.Kappa Perfect truly bridges the gap between subwoofers intended for SPL and those intended for sound quality. If you’re looking for a subwoofer that sounds great and hits hard, look no further. A huge flared, polished and vented polepiece is used to provide optimum cooling of the voice coil and minimize turbulence.
User Ratings and Reviews
5 Stars Amazing
The sound quality of these subs is phenomenal. You can feel them throughout the car. They are the top on the market. 5 stars without a doubt.
5 Stars WOW!!!
I just bought 2 of these subs and hooked them up yesterday. They are not broke in yet, but they already pound incredibly hard with unbelievable sound quality. I only have my amp 1/4th of the way up, with the bass boost off, and the subs and bass set at 0 on the cd player, and with the volume at 25 out of 40, it shakes my entire car, so just imagine what it will sound like after they get broke in and i turn the amp up. These are a definite must if you are looking for that perfect mix of sound quality and SPL. When I get them broke in, i will update this review and let you know what I think.
5 Stars Best bang for the $
After looking at all the reviews, and at 2-for-one (with free shipping), I picked up a couple of these. I tested them ported and sealed. When ported, you can use these as a hair dryer. They push a lot of air! They also go deep. I like the smaller size of the sealed box (one square foot inside) and I’ve got the power to drive them – so sealed it is. They have the ability to damage things in the room above them. So far – a vanity mirror and a remote control. These work very well in a house or a car! They require more power than many speakers I’ve tested with the same rating. They don’t fib much on these. One of these is as good as an rsw10 home subwoofer. I got one and sent it back. Rip-off for over $400. These will make you feel your $ was well spent. I was leery of the 11mm xmax (excursion), but they pound great!
1 Star Should have been 12.1 not 12.1D
Search as for a single voice coil. Came up as 121 not 12.1d
Extremely disappointed when I received the wrong / product
listed below.
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