Can anyone tell me the best way to wire my situation? [: Subs: Two 10'' Rockford Fosgate P3d410 Duel 4 ohm. Amp: Kenwood 9150D 900 watts @ 1ohm/2ohm, 500 watts at 4ohm. One more thing, i'm confused to what the impedance is on this diagram: http://a248.e.akamai.net/pix.crutch...enter/car/subwoofer_wiring/2DVC_4-ohm_2ch.jpg Would this work on my amp? Even though it's a mono channel, it has 2 +'s and 2 -'s. Please clear this up for me!
With those speakers you can wire them to get a 1 ohm load or a 4 ohm load. Here is a hiw to wire that might help http://www.the12volt.com/caraudio/woofer_configurations.asp?Q=2&I=42#results The amp is one channel but has split connections for easy installation. They come together to form one channel inside the amp. I wired my coils together at the speaker. You do not have to use both connections on the amp.
If i wired each sub to 2ohms alone and connected each to there own positive and negative would that show a 4 ohm load? I have the subs wired just like the 1ohm diagram you showed me, and it seems like my car's electrical system cant keep up with it. When there is a really hard bass hit the volume will decrease in the middle of the note, like it doesn't have enough power to play the full note. I upgraded the big three with 1 gauge wire (that all they had at the local car audio shops) but the problem still happens. It also happens when there is a hardcore song playing and there is a lot of double bass hits. The volume will go up and down and the bass wont be consistent. I had it wired to the 4 Ohm diagram and i never noticed this problem. I ordered a capacitor, but am unsure if it will solve this issue. The amp settings are lower then i'd like because the volume problem doesn't occur as much with the input sensitivity at 2 then when i have it at 1 or .5. Should i just wait for the capacitor and hope it allows me to turn the amp up, or go back to 4 Ohms and turn the amp up higher then i can now? Edit: The volume only changes on the subwoofers, the speakers consistently hold their volume.
turning the gain up is not a volume for the amp. FYI. im not trying to sound like a prick, jus saying is all. now with that said, i would return the cap and buy a batt for the rear near the amp. or have your charging system checked to make sure your current batt is up to par for the reserve your amp is trying to get from it. i only have a stock 105 amp alt in my jimmy and one extra batt in the rear. no cap and i have a 1200 watt mono amp and a 4ch amp wired to give me 350 x2 at 4Ω. so im just under 2k. my amps are rated at 12.5v so at higher voltage im sure at full tilt im in the 2k range, and i don't get any dimming lights on my bass heavy music. let us know what you do. hope this helps.
How would i wire in the other battery? Just run pos/neg from my current battery to the 2nd then from the second battery to the amp? Would going back to 4 ohms reduce the strain on my electrical system, or would the current draw be the same?
No, the amp is a monoblock. It has only one positive and one negative terminal. I basically answered this in your other post, but here goes: There are only two loads possible with this combination of equipment: 1-Ohm or 4-Ohms. Your amp can't operate at 1-Ohm. It is stable only at 2 or 4 Ohms. Two 4-Ohm voice coils wired in parallel (plus to plus, minus to minus) results in 2 Ohms. When you then put two of these woofers on a mono amp, you are again wiring them in parallel, resulting in a drop to 1 Ohm. The ONLY way to do this is: Take a short jumper wire and connect it from one POSITIVE terminal over to the other voice coil pair (same woofer) to the NEGATIVE terminal. Now repeat this on the other woofer. Now you will have a single positive and negative terminal remaining on each woofer. Wire all POSITIVE terminals (that aren't connected to that jumper) to the amp's POSITIVE and all the NEGATIVE ones to the amp's NEGATIVE. This is called SERIES/PARALLEL wiring and will result in the amp operating a 4 Ohms, which it was designed for. Enjoy your sounds and respect other people's privacy.
