help with my RF t1500-1 bdcp please

[01VWGREENMACHINE]

ok for my amplifire i have a t1500-1 bdcp 1768 rms at 2 ohm and 1922 at 1 ohm via birth sheet. i also have 2 rockford fosgate t1 d2 12 800 rms each.

the thing is i know these subs can be run at 1 ohm and the amp is capable of this issue is how?? right know each sub has its own pair of 8 gauge wires 1 being in A and the other being in B.

on the voice coils i have a choice of running them in 4 ohm or 1 ohm for the fuse on the sub itself. i have done what rockford recommended which is make each sub to 4 ohm with the fuse the run each sub into proper terminals the way i have it now.(SEE PIC)

but im pretty sure i can run them at 1 ohm what are your thoughts and concerns?? about setting it up this way??

thanks for all your input!!

[nismo923]

You need to run each woofer at 1 ohm. Then run all the wires to the amp. The amp will then see two one ohm loads, which equals a two ohm load. So each sub will be receiving 884 watts RMS before rise. I hope this helps.

[joseakajp]

I could be wrong but i thought if you put 1 ohm+ 1 ohm it gives you .5 ohms not 2?

[captainhook426]

I could be wrong but i thought if you put 1 ohm+ 1 ohm it gives you .5 ohms not 2?

depends on if it's series or parallel.

[nismo923]

http://a248.e.akamai.net/pix.crutchfield.com/ca/learningcenter/car/subwoofer_wiring/2DVC_2-ohm_mono.jpg

[CleanSierra]

You can't run 2 D2 subs for a final load of 1 ohm. Only two D4 coil subs can be wired that way.

[StreetSlappah]

^^^ or two d1s

[Guest]

You need to run each woofer at 1 ohm. Then run all the wires to the amp. The amp will then see two one ohm loads, which equals a two ohm load. So each sub will be receiving 884 watts RMS before rise. I hope this helps.

NO NO NO NO NO NO NO NO NO NO NO NO. i cant stress this enough. re-read your wiring diagrams before you post info. 2 D2 woofers can only be wired to half ohm, 2 ohms, or 8 ohms. and btw, when a monoblock has 2 sets of speaker terminals, the amp automatically PARALLELS (HALVES) the ohm load when using all 4 terminals.

Edited August 10, 2011 by Kranny

[CleanSierra]

^^^ or two d1s

You're right, sorry I wasn't thinking of the D 1's.

[kickass audio]

You can only run the subs at .5 ohms, 2 ohms, or 4 ohms. If you wire each sub in parallel, it will mean each sub is down to 1 ohm. Now having two 1 ohm loads, the amp will take half of that and make it a half ohm. This is dangerous for your amp in a daily scenario.

Now if you wired the subs in series, you can make each sub get a 4 ohm load. Now with two subs, your amp will see half the resistance and only put out power at 2 ohms.

You cannot get any more power out of your amp unless you do like cleansierra said and buy a dual 4 ohm voice coil. If you did that, you would need to wire each sub in parallel and then connect it to your amp. It would then see a 1 ohm load and you will be getting almost 2kw of power to them.

Dont do what i did and wire down lower than a rating you should be at for an amp. Granted my amps can take .5 ohm loads per amp, its supposed to be at 1 ohm strapped minimum. There is a lot of math and tools needed to find out if you can drop your amp down to a lower rating than it is capable of running. Plus you need electrical to back it up. Too much time, money, and experience to just jump into so DONT DO IT!! Just leave it how it is at 2 ohms or buy a dual 4 ohm coil config of the same sub and then get it to 1 ohm.