Ninja636

iTrader: (2)

I hooked up one 15in Kicker CVR the silver one (i believe its called the 2005 model) in my FD to a Kenwood KAC-9102D which says its rated at 500 watt RMS x1 4 ohms and the sub is rated at 500rms 1000 max, i got the sub running parallel wiring at 2ohms the amp is rated for 850x1 at 2ohms is this to much for the sub? im i risking damaging the amp or the sub?

here's links to the sub and amp specs:

http://www.kicker.com/sites/default/...2005CompVR.pdf

http://manual.kenwood.com/files/B64-3010-00_En.pdf

bcnr33skyline187

this is really dependent on how long you want your equipment to last you. if you do wire it at 2 ohms you must be extremely carefull with your gains. you will run the risk of blowing it up if you over do it. for the safe and more sound quality option you can wire them in series and you wont have as much a problem.
tl:dr if 2 ohms be carefull if 8 you will be safer just not as loud.

ioTus

iTrader: (5)

The only way you can get a 2 ohm load from a single 4 ohm speaker is for it to have dual voice coils. The only reason for dual voice coils is to reach a target wattage rating only available at that load (resistance). A dual voice coil 4 ohm will either yield 2ohm or 8 ohm.

2 ohm provides less resistance of flow and therefor more wattage output. 8ohms is more resistance therefor less wattage / flow. In terms of sound quality, I'm not so sure the resistance would make as much of a difference as the brand of the sub and the quality of the amplifier and enclosure. Probably what you're noticing is that because the sub is being underpowered you're getting less "boomy" and more tonal bass.

Some even claim to hear a "clearer sound" when running more juice than the speaker can handle. I'll leave that for your ears to decide, however from what I understand about sound and amplification is that you will have the LEAST amount of line noise (or the lowest "sound floor") at the nominal power. This is referred to as Signal to Noise Ratio or SNR.

If you have a huge amount of overhead (850w) you will have to run the main amp gain at 59% so as not to overpower the sub and physically push it beyond its material integrity, you're 41% closer to the noise floor, and will theoretically have 41% more inherent line noise to the speaker.

Personally I try to match them up as much as possible, if not slightly overpowering. 500w is a LOT of power.

No matter what the resistance of that sub is (1, 2, 4 or 8ohm, dual voice coil or single), the nominal power it is built to receive will always be 500w. If you want to keep that amp and specific model of sub combo - personally i would swap your dual 4ohm voice coil sub for the dual 2ohm voice coil version and wire the coils in series to draw a 4 ohm load at nominal power, both for the amp and the sub, at 500w / 4 ohm.

Another option would be to get a single 4ohm voice coil sub, rated at 500w.

Subwoofer Wiring Diagrams, One 2 ohm Dual Voice Coil (DVC) Speaker

ioTus

iTrader: (5)

However I could also make an argument for an over-powered sub being akin to having "stiffening capacitors" - only ones that are charged all the time.

Basically the only problem you'll run into is you might blow your speaker due to physically pushing it beyond its capabilities.