Right now i bought a Rockford 325.1 and im trying to run 2 MTX 10inch thunders
I'm looking for more power and im thinking of gettin a second rockford 325.1 and can someone tell me what other stuff i would have 2 buy 2 install the second amp

a power and ground wire. with fuse holder and fuse for power wire. And rca cables. Thats it same as the one amp.

you only need a distrobution block at the back of your power wire, replace the fuse up front with a bigger run to run both and get a Y adapter rca to run both amps. Also ground the other amp seperate from the original. You can pick all this up for 10-15 bucks through keystone at canadian tire or parts source.

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premier prs 880
focal k2p upgraded 6.5,s
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2 jl 300/2,s
jl 500/1
2jl w7 8"s
tuned to 30 hz

yeah you can do the distrubution box. I like having two separate wires though. Because you probably have a 8guage for your power right now. and I would want that to be a 4guage or lower to go to the dist. box. then have two 8 guages go off from that. You can do the dist. box for the grounds as well. Just depends what you want to do.

...yea, what he said

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WTF? does that mean?

Well right now i have 4 gage at the begging I had a choice 2 go 4 or 8 but I thought it would pay off to go with the better gage so all of you think its worth it to get a second Rockford 325.1 and all i would need is a power block and that thing for the ground but who would i link them "with RCA"?

You use a Y adapter. it goes from 2 rcas to 4, one pair for each amp. And 4 gauge in a distroblock in and 8 gauge out close to the amps will be fine. You can also get distro blocks that or 4 gauge(x1) in and 4 gauge(x2) out, also known as T blocks, use one if you dont want 8 gauge you can also use one for grounding. 4 gauge(x2) in from amps ,and a small piece of 0gauge(x1) to chassis.

yeah and I know that those amps can't accept 4guage. Not very well anyway. I would put 8guage to them because it should fit fine. I tried 4guage on a friends same amp. didn't fit so well.