one amp, two subs, low funds

I have a 03 impala, kenwood ddx 419 head unit, 4 rockford tweeters, 4 eminence 6×5 midranges, jl w7 12 and rockford t2 d4 12 same box different ports split. Skar 1500 amp on the t2 12 and a rockford bd cp 1000 on the jl w7. Optima yellowtop in the trunk. My skar amp went out and i just want to run both off the rockford amp. Can it be done without ruining my amp. And how should i wire the subs .

I have soundquest 4 gauge power and ground cables should i upgrade to 0/2 gauge on my grounds an power coming from my alternator&battery to my distribution block. I know i should im just low on funds but im going to upgrade my wires. I
used to go to the stereo shops until i had kids and couldnt afford it and had to fix it i mean burn doodie up in my car till i got it to play. LOL now i just try to do it all myself. I have them both on the rockford now it sounds pretty decent i havent tested the wattage yet but im guessing thier both wired parallel in the amp so if my rockford is is wired at 1 ohm and the w7 is at 3 ohms does that make my impedence at 4 ohms? Im new an dumb to ohms law

If you are using 2 batteries, I'd strongly suggest an isolator (ie, relay).

Thanks u r probally right.

What is the minimum safe operating impedance of the rockford amp?

What is the impedance of each voice coil of each woofer?

How many voice coils on each woofer?

Jl w7 12 inch svc 3 ohm rockford t2 12 inch dvc 4 ohm.

Rockford 1000bd cp stable at 1 to 4 ohms.

1 ohm lowest

Go for it. Be sure to set your amp's gain correctly (see Hot Topics if you are not sure how to do this.)

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I just got new rockford tweeters and they didnt come with crossovers the tweeters were left overs from old stock rockford fosgate t1 power component speakers. Do i still need the crossovers if i run them to my amp on the same channel.

every tweeter needs some sort of crossover, if your amp will filter them at around 4000Hz then you can hook them up straight to the amp and set it like that. if not then expect blown tweeters if you use then unfiltered.

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thanks now i know why i had to get new tweeters. i have old  crossovers from the last ones can i use them on the new tweeters or do they have to be a specific kind of crossover. sorry if i seem slow but i needto ask so i dont spend later lol.

well it is true that each crossover/tweeter combo is designed to work together specifically but anything is better than nothing. using a crossover from another tweeter might not protect the tweeter as good as one that is made to work with that specific tweeter. if you change the tweeter then you change the way the crossover will perform too because the crossovers filter points and filter slope work based off of the tweeters electrical properties.

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So i have the older rockford t1 power tweeters the ones with the metal buckets can i just get the new t1 power crossovers and and those or should i try to go with the originals

Thanks for all the info i will be telling everyone in my class about this site it really is a joy to work on your on things even better if it works after lol.

honestly, there is no way to easily know for sure but i suspect that you will be fine using the old crossovers.

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Yeah i installed over the week end sounds great. Thanks for all info i was right on point and you didnt try to get me to buy new stuff like they do at the shop instead of telling what u need to but i guess thats how they make money but it wont be mine anymore. I love this site !!!!

Should i also upgrade my wires to 0 gauge from 4 gauge or should i just get some good 4 gauge wire and redo my run from my from the front battery to the one in my trunk. Im running a skar audio 1500 mono block and a rockford bd 1000 mono and little cheap phoenix gold 300 4 channel amp on mids an highs.

Ok just installed my new amp kit tsunami 1040d. Thank you 12 volt .com i used to be scared to do a full system but not anymore. I advise anyone with a little know how to never go to a stereo shop an get ripped off and do your research an diy. They were running 1 jl audio w7 12 an 1 rockford t2 12, skar audio 1500 mono block an 1 rocckford 1000 bdcp mblock an phoenix gold 400 4 channel on 4 gauge soundquest wires an this was done at the stereo shop by (professionals) they had my system starving for power and im lucky they didnt ruin my amps or anything else. I think they were mad i didnt buy the subs frm them in the first place n when i realized what they did thats when i started my research an found this site. God is good. You know it may not be the loudest but i did it all buy myself and it slammmmmmms.. thanks 12 volt.com

I have 1 jl w7 12inch sub 3ohms and 1 rockford fosgate t2 d4 12inch sub 4ohms in the same box but the ports seperate the subs in the middle of box. I have a scar 1500 on the rockford sub an i have a rockford bd1000 ont the jl. Will it ruin my subs or do i have to still have the same subs . It hits hardnow but i dont really want to ruin my subs if it will cause damage to them.