Major Install
Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=19246
Printed Date: September 10, 2025 at 10:31 PM
Topic: Major Install
Posted By: ADVCustominstll
Subject: Major Install
Date Posted: September 23, 2003 at 11:21 PM
I just aquired 12 YES 12 Rockford Fosgate TRF2215 - subwoofers, (cast 15", dual 1.4 ohm VC, 2000 watts) I also have 20 Rockford Fosgate 1501BD Mono Class amps. Now to my question Each subb is 1.4 ohm and the amps are 2 ohm mono stable. I would have to use the BD link and use 2 amps per sub. How would I supply enough Power to these amps to feed the beasts? If each amp recomends a 4 gauge with a 150 amp fuse wouldnt I have to run 3/0 to a load of Batts and caps to power them alone with 2 indepen. High Out Put Alternators. Any Help would be help full...
Replies:
Posted By: ADVCustominstll
Date Posted: September 23, 2003 at 11:42 PM
AS soon as I posted this I noticed that I made a mistake. IM srory The power for each subb should be 2000 Rms and 5000 Max and changes ti to 4 amps per subb. I should have read the manual slower and not gotten excited. Thanks
Posted By: MAXST
Date Posted: September 24, 2003 at 7:06 AM
I have to say one time....D@MN!!!!! what the heck are you gonna put that in? I would say multi-hi-output alt and batt setup, thick power and grounds. whats the HU? ------------- I need quality equipment, feel free to donate.
Posted By: Ketel22
Date Posted: September 24, 2003 at 11:08 AM
wouldn't two of those amps be putting out 3000wrms at 1ohm? there fore using two amps per subs is sufficient?
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Posted By: ADVCustominstll
Date Posted: September 24, 2003 at 12:06 PM
Its going in a 1994 Isuzu Rodeo 4x4 Red has only 400 MIles on it Lowered, Air Bags, Custom Paint, Custom Interior, and to many other mods and customs to list. I have from right behind the driver seat and Pass seat all the way back. The Pass seat has been removed for a custom Radio install Area, MIxer, Equilizer, Remote Bass, Power gagues etc. Each Vs is 2000 watts rms and ther eis 2 vc. So i would need 2 amps per vs. So 4 per sub. What size of Ground and power wire did you have in MInd Maxst Thanks
Posted By: ADVCustominstll
Date Posted: September 24, 2003 at 2:42 PM
I just got done doing the Measurements and I can fit all 12 15's in my suv with an amp rack and batts. Havent figued out air space totaly yet but the whole rear will be packed. LOL I have ordered 10 Stinger Power2 dB at 250 per. "Saved up for 5 years for a KILLER stereo" 20 g to blow " Would lvoe to hear any suggestions
Posted By: ADVCustominstll
Date Posted: September 24, 2003 at 2:52 PM
I traded a friend of mine for another 4 Rf 1501db amps he had in stock so I can run 2 per subb Also Ordered (2) Rockford Fosgate Type RF CPSR
Battery Isolator/Regulator (4) Rockford Fosgate Type RF CPCC40
Stiffening Capacitor he he thank god I got a damn good credit rating he he
Posted By: MAXST
Date Posted: September 24, 2003 at 3:27 PM
sounds like you have it all planed out. ------------- I need quality equipment, feel free to donate.
Posted By: mj239air
Date Posted: September 24, 2003 at 4:35 PM
If you are going to use more than 1 amp per sub, you are going to ruin your subs and you will have to blow another 20,000. I can think of many other ways to spend 20,000 and still have a killer system. I know from experiece since I have spent a lot and have a killer system, but no where near 20,000. Might want to rethink the amps and find some that have the power you are looking so that you are using only one per sub!
Posted By: tdsteele
Date Posted: September 24, 2003 at 6:56 PM
Just an opinion but if i was spending that kind of money on a system, i wouldnt be here asking questions about it, i would find a very good install shop and let them do the whole thing so that way i know it would be right plus have a warranty to boot without any of the headache!!!!!
Posted By: auex
Date Posted: September 24, 2003 at 7:55 PM
Just curious, is this money that you spent or is it a sponsorship? Just wondering because you are going to blow those subs up. If you are going to sync tha amps then you should buy 4 more, 20 amps and 12 subs really don't mix well.Personally if I dropped that much money into a sound system, it sure as hell wouldn't be a SPL vehicle.
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Posted By: ADVCustominstll
Date Posted: September 25, 2003 at 2:10 PM
10 of it is sponship. and the other 10 is mine. I dont like going out and hainvg some install place do it because then you have to give them credit . And asking for peoples opions is the best way to get info. Yes I know it wont be a spl but it will still beat..
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