Hello all.....new to stereo stuff... Im thinking of buying a foxbox and 2 JL 10w3v3-2... my headunit is pioneer avh-p3200 dvd... i have a Profile AP1000m (mono block) rated at 500rms@2ohm and 310rms@4 ohm. Is there a way to wire the subs so that they they both get 500rms @ 2ohm at the same time? I checked 12volt.com calculator but they didnt have 2ohm single voice coil.
thanks in advance

 

500rms to the subs combined is fine.

 

I take it your subs are single 2ohm woofers. If your amp doesn't rate for 1ohm, then you'd be better off not hooking your subs up in that configuration because you might damage your amp thermally. Your subs will present you with either a 1ohm or 4ohm load both connected, but can't be connected into a 2ohm load. All you can do is run both subs @ 4ohms, run just one sub @ 2ohms, get a new amp that will handle 1ohm loads, or get two single 4ohm woofers or dual 2ohm woofers.

 

My amp is not rated for 1ohm. but just want to get this right
-if the subs are wired in parallel, the 2 -2ohm subs will use 500rms@1ohm each for a total of 1000rms needed?
-if wired in a series- 2-2ohm subs will use 310rms@4ohm so they woud each get 310rms@4ohm or 160rms@4ohm?
-if I get the 2- 4ohm subs and wire them in parallel for a 2ohm load @500rms would my amp can handel it

sorry if my questions are a little confusing...

 

No, amp would go into protection because it cant do 1 ohm. But if it could do 500RMS at 1 ohm, each sub would get 250 (500 total)

Each would get 160 for a total of 310

If it's rated at 500W RMS at 2 ohms this is the way to go. It would be 250W per sub for a total of 500W.

 

When your amp is rated so much power as a certain load, that's the average power it puts out constantly, no matter how many subs you are running. If you have four subs hooked up to your amp @ 2ohms, your amp will push out 500 watts to all woofers, so each woofer will get 125Wrms. But keep this in mind as well! If you double the amount of power to your system, you will get about 3db's of audio volume increase. If you double the amount of woofers (or double cone surface area or excursion) you will get about 6db's of audio volume increase. If you hooked both your subs up @4ohms, each would get 155Wrms. If you only used one sub, it would recieve 500Wrms. Mathematically, you still get more volume from a 4ohm configuration, especially since your 10w3v3 can't handle 500Wrms thermally or mechanically. At this point, you still wanna use two subs anyway, even if you gotta do 4ohms. Getting a subwoofer amp that wil run @ 1ohm around just 600Wrms isn't the easiest find if you're looking to keep it inexpensive. One suggestion you can do is to purchase a 2-channel amp and bridge it. A bridged 2-channel amp will run more continuous power @ 4ohms, which will be great for your current woofer setup, or you can do your bass in stereo and with a 2-channel amp wire one sub for the LEFT audio and the other sub for your RIGHT audio. Some people like 2-channel bass, some prefer mono. You do have options, lots of them, just not optimal options with your current situation.

 

thanks for all the helpful info... i guess the best option would be to get a new amp.. do you have any suggestions... sonicelectronix seems to have good prices.

 

Honestly, try to aim for a mono channel amp, preferably class D. Take a look at them, see which is rated for 1ohm, how much power it is (should be pushing no less than the nominal power of BOTH your subwoofers combined), if it has a remote bass **** and if you want it (some people want it but in reality it can hurt your amp), if you like it's design, and the price. Seriously, the majority of amps are constructed the same, their guts are just rearranged from one manufacturer to another. There are the slight few amps though that put out the same amount of power at all impedance loads, like the Alpine PDX amps, and the JL amps. Browse around and get what fits your budget, your cosmetic appeal, and a 1ohm stable operation.

 

Try woofersetc.com too. Whenever you decide on an amp, google the model number and look at google shopping priced low to high.

Check retailmenot.com for discount codes.

 

Phattacorider- thanks for clarifying things up for me

GatorB8- ill take a look at those sites...thanks