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Do ohms play a big role in loudness and sound quality? Say I have two dvc 4 ohms subs. How much difference would there be if i wired them at 1ohm on a mono amp or on a two channel 4 ohm amp bridged or in two channel mode? I am wondering because it is cheaper to get a 2 channel amp that runs mono at a powerful 4 ohms than to buy a mono amp that runs powerful at 2ohm and kind of weak at 4ohm. I am referring to the rockford fosgate bd500 that is 250watts a 4ohm and 500 at 2ohm and also the 500s that runs like 250x2 at 2ohm or 500 at 4ohm.
You pretty much need to follow the rules of the particular amp. You really should not drop the impedence below what the manufacturer rates the amp. For RF 2-channel amps, you should not present a load lower than 4 ohms mono. For their monoblock amps, the lowest rated impedence is 2 ohms. Of course, people have had success with lower impedences. Now doing that will not only void your warranty, but it may fry your amp.
If you DO have two dual 4 ohm subs, get the 2-channel amp. Wire each sub in series and wire the two subs in parallel.
Which would be louder two fosgate he2 dual voice coils running at two ohms or two fosgate he2 dual voice coils running at 4ohms? Im not sure what to get. If i get the 2ohm then i will get a mono amp but if i get the 4ohm speakers then i will get a two channel amp. i will most likely use a fosgate amp.
I'm not asking whether or not I can wire them to two ohms because I know I can. A dvc sub can be wired in 2ohm or .5 ohm while a 4ohm dvc sub can be at 1ohm or 4ohm. My question is which will be louder two subs in 2ohm or two subs in four ohm using a mono amp on the 2ohm and a 2channel amp running mono on the 4ohm subs.
Originally posted by xxxcre10xxx I'm not asking whether or not I can wire them to two ohms because I know I can. A dvc sub can be wired in 2ohm or .5 ohm while a 4ohm dvc sub can be at 1ohm or 4ohm.
Bud, I'm trying to help you out here. The information I posted in my last reply answers your question. Those subs are ONLY offered in a dual 4 ohm coil. To get a sub that will do either 2 ohm or 0.5, you would need a dual 1 ohm sub, now wouldn't you.
dunno if this will help but ohms dont play a major role in sound quality, all it basically does is tell the amp what wattage to put out...and DVC offers a different range of wiring options to reach peak output...
Crutchfield has them in 2ohm and 4 ohm. I was asking because I don't know which one to get. I didn't know if one would be louder or better even though they are the same subs but different ohms. Will the 4ohm be basically the same as the 2ohm?
Also I have two jl audio 6's that are dvc 6 ohm. What would be the best amp for them? Is there anyway i could run them with a two channel amp? I can wire them at 1.5ohm or 6ohm. I dont want to get a 1ohm stable amp. I would like to use a 2channel amp on them.
I apologize for my previous replies. I did not know that when RF updated that particular line that they had added an option for a dual 2 ohm coil. I even broke out my RF catalog to make sure of my information when I typed those posts.
Thanks for pointing that out to me.
As far as your situation, pick an amp that you want. Once you decide on which amp you want, choose the appropriate sub impedence. It's that simple.
wont really matter to the subs since the sub tells the amp how much power to put out. i would stick with a JL amp for JL subs since they put out the watts they say from 4-1ohm...also i think audiobahn has a 3ohm stable amp. most amps dont like being run under 4ohms bridged...
Optikal is very correct about ohms not affecting sound quality. The ohms are a rating for the impedance of a speaker. The lower the impedance(ohms) themore power that speaker will draw from the amplifier it is connected to. And more wattage from the amplifier = louder sound from your speakers. This is what i would do:
First, pick out the amplifier that you want.
Then, match the speakers (single/dual voice coils) to the amplifier.
Make sure that your selected amplifier can run the load you plan on using it at ( 4ohms/2ohms/1ohm)
Like optikal was saying, the ONLY advantage to running dual voice coil subs is that they can offer more wiring options than a single voice coil speaker.
You can wire a DVC speaker in parallel, in series, or run both coils to seperate channels of an amplifier.
Wiring your speakers at 2ohm or 4ohm will not make them louder.
When your talking about wiring at 2 ohm or 4 ohm or even 1 ohm, get the speaker idea out of your head, and concentrate on the amp. You are basically changing the load on the outputs
As stated above, decide on an amp then figure out wiring.
If you have a 2 channel amp that is rated for 150x2 RMS at 4 ohms, and rated 400x1 bridged at 2 ohms, then you'll get more power out of the amp by wiring the speakers at 2 ohms and using the bridged option.
Don't forget to take into the account that some amps will run 2 channels at 2 ohms, and may put out more power that way then 2ohm briged. For example 150x2 RMS at 4 ohms, 200x2 RMS at 2 ohms. I would prefer to run 2 channels. In my experience, it keeps the amp cooler.
skip 2 channel and go directly to mono channel (or sometimes refered to sub amp). more efficent and is better suited for powering sub-woofers. most mono channel amps are class D and are really efficent and can run cooler, harder and longer then others powering woofers when wired properly. efficency rating go class A, class B, class A/B, class D and class T. also most amps dont like being ran at 2 ohms bridged. reason the lower ohms produce more power is less resistance. as ohm number goes down resistance also goes down.
i would highly consider looking into a mono channel amp such as the JBL BP, MTX D, and RF BD series. there are a lot more names out there but those the few that come to mind at this moment.