2 ohm and 4 ohm difference. Need help from you guys please!

[stanza 10+ year member]

hey guys so i am about to make the purchase of two 12" rockford fosgate P3SD subwoofers (i have a single cab truck) and im trying to figure out how i want to wire them, 2 ohms or 4 ohms. I prefer sound quality and for the subs to "hit hard" rather then power/loudness. Now as far as the amp selection, im thinking about going with the Rockford Fosgate P1000-1bd. This amps RMS is 500 watts x1 @ 2ohms and 250 watts x1 @ 4 ohms. Now is this saying i can only run two subs at 250 watts @ 2ohms?.. What i WANT to do is either run both my subs at 500 watts each @ 4 ohms or run both my subs at 400 watts each @ 2 ohms.. if you cant tell im so confused as to what to do. So basically what im asking is if i can run these two subwoofers with this amp at a 2 ohm or 4 ohm load, and if i can what kind of wattage can i get out of each sub. Finally will there be a HUGE difference in sound quality if i run these at 2 ohms or 4 ohms??

Thanks guys i appreciate any help and information.

Click to read more...

 

[dipitydoo 10+ year member]

what impedance are the rockford p3's? dual 4 ohm or dual 2 ohm? the p1000 is rated at 250x1@4ohm, 500x1@2ohm, 1000x1@1ohm. with this amp, you'll want the dual 4 ohm version. parallel all coils and you get 1 ohm to the amp, that's 500w per sub. as for sq differences at lower impedances, measurable, yes, audible, no.

 

[stanza 10+ year member]

ok so being that i dont want to go with a 1 ohm load.. what are my options? can i go with the T600- 2 (2 channel) rockford amp which is rated at 300 watts x2 @ 2 ohm RMS and get two DVC 2ohm 12" P3S and wire them to a 2 ohm load? If thats posible how do u think that would sound?

 

[dipitydoo 10+ year member]

the t600 is stable to 2 ohm stereo or 4 ohm mono. you'll want the dual 4 ohm voice coil version. wire in series/parallel for a 4 ohm final load, bridged.