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Old 10-06-2009, 05:55 AM   #11
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It just keeps going into protection mode, the protection light comes on when it cuts out. Every wiring diagram i find for dual 4 ohms subs at 4 ohms shows using a mono amp

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Old 10-06-2009, 06:10 AM   #12
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Would it be better to power them with a two channel amp or a mono amp?
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Old 10-06-2009, 11:46 AM   #13
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I garauntee its that amp man. No disrespect but it is a jensen. I think you are making a wise decision to try another amp. There are too many decent brands out there for great prices to settle on a jensen.
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Old 10-06-2009, 03:53 PM   #14
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It was given to me thats why i really dont care about it same with the box. Ive always known that it was junk. It worked alright with my other subs but those were MTX road thunders and only single voice coil.
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Old 10-06-2009, 08:26 PM   #15
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I personally like mono blocks for subs. They are way more efficient and require less amperage. If you have dual 4 ohm subs get an amp that will put out the power you need at 2 ohms. If you have dual 2 ohm subs, get an amp that puts out your needed power at 1 ohm
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Old 10-16-2009, 02:52 PM   #16
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Post removed for idiotic info~ GXP Venom
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Old 10-16-2009, 03:57 PM   #17
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Quote:
Originally Posted by chadeyboy85 View Post
the problem i can see is your gain is to high for your subs cause if the amp is 500 watt and 250X2 those subs are to much power. you need to drop the sub power. cause the amp is 500 max but 250 per channel those subs will make it go in and out. you need to make sure your not powering the subs to much cause your amp will go into safe mode thats why it goes in and out. you put to much power to you subs and your amp can't handle that! try turning down your gain.
Actually in a case like that, the amp would blow the subs, at the least distort them. Had a Memphis 600 watt amp pushing 2 Memphis Power Reference subs rated at 450 watts peak per sub... it actually blew them after a couple years and only once went into protection at a competition when it blew one of the 4 25 amp fuses on the amp... still have the amp to this day just need to more subs for my GTP....

i think Crunk is right with it being a lower class amp and he needs to up it on class... there are TONs of cheap efficient amps that you can get that will push good subs without this problem. Plus ive seen this same problem on a Jensen amp 2 times before my friend upgraded to a pioneer amp, that fixed the problem, kept same subs, wiring, just replace the amp and the problem went away.
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Old 10-16-2009, 06:19 PM   #18
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thats not always the case of blowing your subs, it doesn't happen very much unless the subs are like three times the amp power. if your running a low power amp you have to put the same RMS or lower on your subs or you won't have good sound and you will have this problem. i have worked around car audio for 8 years and seen all kinds of things like this but i would say that it is to low of an amp and you need a higher amp in order to carry those subs. this is one of the most common things on systems that alot of people misread or understand. if you want to try something try bridging your sub and see if just one sub works and doesn't cut out. if it does then your amp is toast or really low quality and need to get a new one. you need to turn down the gain though cause it will power to much of the sub when you have two on a 250X2 cause its 250rms watts per channell you can't run a 500 watt rms sub on that its not enough power. also look into getting a capacitor for your system it will save your battery life and make your amp last longer!
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