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    amosstarr's Avatar
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    Subs cutting in and out

    For the first time my subs cut in and out. I am a little worried
    about this...although ppl are telling me this is due to the amp
    heating up and shutting off. Its actually been hot here in Buffalo
    NY this week and today I played the system fairly loud for about an
    hour straight. I talked to the person who did the install and asked
    if there was a way to get around this and he getting a more powerful
    amp and turning the gain down a bit which would reduce stress on the
    amp. So now I am thinking of upgrading to a Rockford 1200
    punch....the current amp is a Kenwood 800 watt 2-channel. The subs are 2 10" JL Audio in enclosed box. I really like the system as is...its sounds good for what I use it for.

    Any thoughts on this? Is it worth upgrading or will this happen again even with a higher powered amp.

    Thanks.

    - Ali



    www.thisisali.com




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    mgaidica's Avatar
    mgaidica is offline CarAudio.com Veteran



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    turn ur gains down a little, and see what happens... upgrade wiring if its no to par, and maybe look at ur overall electrical system..



    2x JBL 1200.1 for sale...

    AIM- Mgaidica

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    subs cut in and out.

    I think it was probably due to heat cuz i couldnt touch the amp...it was fricking HOT to the touch! The wiring is Rockford Fosgate...ummm...there is still slight whining..even tho I had them check the ground and they did something to take care of it. The whine is very very low...and it takes a lot of quiet and carefull listening.



    www.thisisali.com

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    get a couple fans goin on that thing!



    2x JBL 1200.1 for sale...

    AIM- Mgaidica

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    same deal

    Recently bought a new Kenwood 8151D and it worked great until the outside temp started rising and cooling became an issue. Maybe a defect in their design since it's to cool by convection yet there's hardly any fins to increase surface area. ANYWAY. I needed to cool the amp because it kept getting so hot the auto shut off kicked in. I went to RadioShack and bought a 12vDC fan for 17 bucks and constructed a box around the amp (leaving the sides open for wiring and tweaking). Covered the top and front and back with plexi glass so i can still see the amp and put a fan on one end and a hole with a simple filter on the other. Raised the amp off the ground to increase surface area too. The fan switches on through an auxilary switch in the car. Worked great but took a lot of time. but really solved the problem and the amp is a lot cooler now. For details email me with the subject "Amp"

    If you don't care how it looks don't use plexi glass, just use cardboard or something. If your amp has a cooling fan than leave it alone and just wait until the temp goes down, if not try my thing because it worked wonders for me. for details or a diagram/picture, email me.




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    I thought about some kind of external cooling...sort of like the stuff you might use in a PC. I have chip coolers, thermaltake case cooling fans, etc running in my PC'z. I wonder if they make something like this for AMPS. Amps by design are supposed to one giant heatsink. Both my amps have built in cooling fans, however I guess when it gets hot outside...they probably dont do diddly! It is HOT right now in Upstate NY and I am sure they get hot. My amps are mounted on the left and right side inside the trunk of the car... sideways so that there is some better ventilation. Anyhow....I could also flip down my rear seats and perhaps that will increase the airflow to them and with the A/C on it might help a little.

    Thanks for your insight....it helps a great deal.



    www.thisisali.com

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    old popo trick

    i actually have one of my rear seats folded down and it helps clear out the stale, hot trunk air but also, if you want to be able to keep your seat up you can get some flexible tubing and put one end open within your car (with AC air) and the other in your trunk with a fan sucking air into your trunk. Cops use to do it when they had videos in their cars to cool off VCRs etc. In my case, I chose to just drop the seat because i rarely have 4 people in my car and it improved the sound quality of my 10w0's anyway. Also i didn't want to have to drill anything to accomadate a tube since most cars don't have gaping holes to the trunk this is likely your case too. I say pull the seat down.




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    I dont have 4 people in my car that often either...I mostly have junk in the back seats...so I'll try this. Now I am also seriously thinking about upgrading the AMP. Crutchfield has this Visonik 500w x 2 amp for like $ 349.00 with multiple fans. My Kenwood is like 150w x 2. I am wondering if I should spend the mone?



    www.thisisali.com

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    go to ebay or etronics.com
    both are much cheaper... my amp retails at 400 and i got it for 180 and its 500x1 @ 2 ohms



    Head Unit Kenwood
    AMp Kenwood KAC-8101D mono 500x1
    Subs JL 10w0 @ 4ohms (2 subs)
    Wheels-- 92 Camry LE 4 cyl 2.4L

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    Crutchfield offers credit...180 day financing.



    www.thisisali.com

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    $$

    crutchfield is expensive though... try a local audio store if you have some. Normally i buy online thinking its cheaper but i bought a 10w0 today for 90$. online they run around 80- 90 plus shipping... shop around. Crutchfield is a well reknowned place witha lot of stuff and protection, but they use that and knock their prices way up. If your not a tight wad like me than do your thing.



    Head Unit Kenwood
    AMp Kenwood KAC-8101D mono 500x1
    Subs JL 10w0 @ 4ohms (2 subs)
    Wheels-- 92 Camry LE 4 cyl 2.4L

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