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Sound system set up/ install question

Discussion in 'Audio, Video & Gadget Tech' started by Chaser1, Nov 2, 2009.

  1. Chaser1

    Chaser1 Rockstar

    Hey, I have a kenwood receiver, 12'' sub, 1100 watt amp, Some after market front speakers and stock rear speakers, a shop installed all these last year. Everything runs off the same amp. Two weeks ago my amp shorted out and now I have no sound at all. Last Friday my truck wouldn't start and I had to jump start it, after a 20 min drive I noticed the volt meter keep moving from 14 volts to 10 or lower only when I was stopping at stop lights. I took it to my mechanic and was told that my alternator was crapping out on me, $280 later after he was done installing the new part the truck was completly dead, that's when he mention if I had some other issues with the truck and I mention the amp thing, he removed the fuse for the amp that comes from the engine to the cabin. After a jump start the readings were ok!!!!!! The amp cause a short and that was the reason for not starting. I want to reinstall my sound system but was wondering if the amp will in effect damage the alterntor??? Some one told me to get a device that looks like a giant pill to prevent this from happening. I want to run my sub with a 1100 amp and speakers with a diff amp, probably a 300 watt or lower. Can any one help me!????
  2. Padre

    Padre Rockstar

    Did you leave the bad amp in? If so, then it was draining your battery and putting a strain on your alternator.

    The 'giant pill' may be a capacitor that will help, a little. You should have no problem just installing the amp, but MAKE SURE YOU RUN AT LEAST A 4 GAUGE WIRE FROM THE BATTERY DIRECTLY TO THE AMP, and FUSE IT AT THE BATTERY END.
  3. TritonBoulder47

    TritonBoulder47 Rockstar 4 Years 500 Posts

    So, you're saying your amp got fried and you didn't take the fuse out of the power cable...? That was your first mistake... And as far as needing a Cap, not really... IF you get a good battery and a good alternator, you'll be fine... The battery is only there to get the vehicle started and for sudden voltage drops... When your car is running, the alt does the majority of the work...

    Here's my suggestions...
    Big 3 upgrade
    Optima yellow-top or similar battery
    H/O Alternator upgrade, 180 amps or larger...

    After that you should be golden...
  4. Chaser1

    Chaser1 Rockstar

    Rookie mistake?!?! Padre,The entire thing is out now. Do you think I'll be fine running two amps?? I want get one for the speakers and a 1100watt for the sub. Do you know how big can I go as far as a sub amp?? I have a optima red top installed
    Last edited: Nov 4, 2009
  5. Chaser1

    Chaser1 Rockstar

    I have a optima red top right now and the rebuilt alternator that I got from autozone is pretty much stock nothing fancy. Like I mention before, what do u think Tim a.k.a. Da' Boulder, am I ok running two amps? A small one for the speakers and a 1100 watt for the sub??
  6. Padre

    Padre Rockstar

    The red top and alternator should be fine. Running two amps isn't necessary if you get a 5 channel amp you can run the speakers and the sub off of it. Running a separate amp is unnecessary in my opinion. I have a Kenwood 9140 running off a 5 channel amp and it works fantastic.

    Again, in my opinion, spending your money on a higher quality 5 channel will, in the end, make for a better system and an easier system to install.
  7. TritonBoulder47

    TritonBoulder47 Rockstar 4 Years 500 Posts

    You should be fine as long as everything is hooked up propper (fused, good ground, away from moving parts)... But if you see and kind of dimming when you bass hits, I'd do the Big 3 Upgrade... That usually helps a lot and its fairly easy and cheap to do...
  8. Padre

    Padre Rockstar

    The size of the sub amp depends more on the speaker(s) you have in the sub. You can get a loud thumping noise out of the speakers with a 400w amp if you want.

    To me, it is more important to get quality rather than loudness. A 5 channel, 1200w amp should be more than enough to blow out your windows and eardrums. :shocked:

    All the major manufacturers make them, Alpine, Boss, JL Audio, Phoenix, DLS. They all make good amplifiers.

    Also, use good wiring!!
  9. Padre

    Padre Rockstar

    What gauge wire do you use for your Big 3? I've been using the very flexible welding wire in 2ga and 4ga. I read that some are going to 1/0, 2/0. What's your opinion?
  10. TritonBoulder47

    TritonBoulder47 Rockstar 4 Years 500 Posts

    Atleast 1/0...

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