The mind-blowing 304-ounce magnet structure is triple stacked, and the huge 4" voice coils were born to handle big power. The aluminum parabolic cone with its high-excursion rubber surround hits quickly and accurately. Spider venting keeps the woofer cool even when you run it long and hard.

The T215D2 15" subwoofer works best in a vented enclosure. The dual 2-ohm design lets you wire for high output or a multiple woofer setup.

Note: If you are wiring this DVC sub for lower impedance, make sure that your amp is compatible. Most car amplifiers are stable down to 2 ohms in standard mode, or 4 ohms in bridged operation.

www.youtube.com/watch?v=Ec795z0K8IE

Details:

• 15" subwoofer with dual 2-ohm voice coils
• aluminum parabolic woofer cone with rubber surround
• cast aluminum basket
• power range: 150-1,000 watts RMS (500 watts per voice coil)
• peak power handling: 2,000 watts
• frequency response: 24-250 Hz
• sensitivity: 87 dB
• mounting depth: 10"
• ported box volume: 2.25-3.25 cubic feet
• Recommended Q-Logic Box Type: 2

Discount Finder:

NEW ROCKFORD FOSGATE T215D2 POWER T2 SUBWOOFERS    US $448.90

T215D2 or T215D4 Ported Sub Enclosures Box MDF 1x15    US $117.00

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How to get the most out of KEYWORDS Help DVD eBook    US $25.00

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www.youtube.com/watch?v=SLuKoY8wWxc

"The Kicker Comp 12 is the entry-level in the Kicker's line of subwoofers, but that doesn't mean they skimp on this woofer. The cone, coupled with the Inverted Dustcap, forms a very solid piece that can withstand high pressure in a small sealed enclosure. The polyester foam surround are stitched to the cone to eliminate the possibility of separation, the rubber speaker gasket serves as a seal and protects the stamped steel frame. The sub has a 40-ounce booted magnet with a vented and extended pole piece, and also vents around the single voice coil to draw cold air to cool off the voice coil, Kicker calls this "Perimeter Venting." Connections are via standard solder-type with large gauge wires going to the voice coil, with care done so the wires won't bounce off the cone and make noise during high excursion.

I bought this speaker from a friend of mine for 40 bucks, but he paid 70 when brand new. I have to note that I have the 8-ohm version of the sub instead of 4-ohm, which was suitable for home use. Now this friend of mine is deep into bass and he has serious bass power in his Explorer, consisting two batteries and a 1-farad cap just for one USAmps 2000x that runs two 15 inch Eclipse Titanium cone "Professional Subwoofer." On a quiet night I could hear his bass from more than a quarter mile away. So, basically he bought this speaker just for kicks, he made a very small(and completely wrong) vented box for the sub and ran the 1Hz to 100Hz test tone with his beat-up home receiver, with about 150 watts of distorted power going into this poor thing. The vented subwoofer obviously went into overload at such low frequency, it maxed out its peak-to-peak excursion limit which was about an inch and a half or so, we could very well smell the heating of the voice coil, but that was about it, it didn't even bottom out. This subwoofer took the serious abuse and recovered without a hitch, but as for his beat up receiver it went into gross overload and shut itself down. At that time I was in a need for a temporary sub in my room, so I bought the speaker and made a slot-vented enclosure that would produce higher SPL at 35Hz and above. I listen to music a lot more than I watch movies, so trading the missing subsonics for higher SPL wasn't a big deal. I ran a 150 watt sub amp to this baby and was greeted with strong kick drums and midbass, and it sounded really fast and accurate consider the box I made was purely for SPL. I put in some dance music with strong 60Hz bass kick, and my amp ran out of steam before the speaker moved more than half an inch peak-to-peak. Convinced for its SPL mojo, I put in The Matrix DVD and the gun shots was quite strong, but shotgun shots sounded like a pistol, and the ultra-low explosion information was missing. Please note that I made a box that DOES NOT produce subsonics, I plugged the slot port with a bunch of clothes and the sub did indeed went a lot lower, about as low as 25 Hz. Watching movies was a lot more exciting this way, but the midbass would suffer and playing music had less impact.

Conclusion:
This sub was built and sounded more than its price would suggest. It took abuse and recovered fine, it could be made for SPL, sound quality, or sub-bass, depending on the design of the box. Overall I really liked this subwoofer, even though it was only a temporary substitute before I upgrade to a even better subwoofer. If you are looking for a bargain subwoofer with performance, this is for you."

KICKER DC12 DUAL 12 SUB BOX W 2 C12 COMP SUBWOOFERS    US $183.50

c12 kicker 12 inch subwoofer    US $100.00

KICKER C12 12 CAR AUDIO SUBWOOFER COMP SUB 4 OHM NEW    US $57.50

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www.youtube.com/watch?v=sVP5vsUe0kY

Each roll on a typical subwoofer spider has a uniform height but because the center area is subject to increased stress when for example, a subwoofer's excursion is especially large - this area can become stretched out, leading to breakage in the spider and limiting higher power handling. However, Kenwood's new spider roll gradually becomes higher towards the center, enabling this area to withstand more stress with less stretching. The design goal was to gradually transfer up-down movement outward to reduce stretching in the center area. As the spider's outward portion has more surface area to better dissipate stress from the center, this helps to reduce mechanical damage during increased excursion and enables the subwoofer to withstand more power.

Kenwood kfc w3011 outer plastic ring    US $10.00

Kenwood 12 Car Subwoofer KFC W3011 Trim Ring Cover    US $19.99

Kenwood KFC W3011 12 1200W 4 Ohm Subwoofer    US $69.99

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