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eaglemn05
12-31-2003, 03:26 PM
my amp shuts off when i turn my head unit up to like about 30 (max is 50) and when it hits a hard bass, my amp shuts off....it is a four channel amp, i had 2 subs, but i unplugged one(cause one alone sounds best) and i have that one bridged on the rear...because my HU has "rear" written on the output wires...what do i do?...i knwo it's not getting hot cause i don't run it for that long....

i have it bridged RR+ and LF-
should i bridge it Rf+ and Lr-?

ditto985
12-31-2003, 03:29 PM
sounds like a faulty amp to me, hopefully you have warranty

eaglemn05
12-31-2003, 03:30 PM
got it at a pawn shop...no warranty

eaglemn05
12-31-2003, 03:31 PM
i haven't tried it since i hooked it to the rear, i had it hooked to the front, maybe that's waht the problem was...i will drive around and see

ditto985
12-31-2003, 03:49 PM
you can also try to change around which channels you bridge, sometimes it can just be something where one channel has gone bad

eaglemn05
12-31-2003, 03:51 PM
well it did the same thing, it cuts off

but it gets worse the more i drive, it flickers on and off....could it be my battery, i have battery problems....sometimes i have to boost it off

eaglemn05
12-31-2003, 04:58 PM
what the heck do i do? it's pissing me off....i can't figure it out

blushadow_db160
01-01-2004, 12:44 AM
hey if the jenson is the and make shure you are running at least 10 gauge power and ground with a 30 amp fuse. I had the same problem before. Your running your amp dry it's thristy feed it more.

ditto985
01-01-2004, 12:49 AM
if you want a new battery, go optima deep cycle, or if you want add a capaciter

ditto985
01-01-2004, 12:52 AM
$50 for two neons?? too much..
man are you even on the right forum no even mentioned neons

blushadow_db160
01-01-2004, 12:53 AM
when bridging a four channel amp you are supposed to bridge the rear to rear and front to front. Doing front to rear or rear to front with not give any more power just require more tuning. On most 4 ch. amps the rear channels have the lp xover (lp stands for Low pass) in turn means bass. so if i were you i would run both subs in parallel. Lowering the inpedence and increasing wattage. And hook them up to the bridged rear ch. just a little tip.

blushadow_db160
01-01-2004, 12:56 AM
hey shrinkydinx

ditto985
01-01-2004, 01:17 AM
oh i understand now. I guess my sisters aren't the only ones in my family who are blondI understand now, I guess my sisters aren't the only blonds in the family

DBfan187
01-01-2004, 01:25 AM
ditto985 - OWNED by shrinkidinx

-Mike L.

eaglemn05
01-01-2004, 03:01 AM
they were the only orange ones i could find....leave me alone :(...lol

if i ran them in a parelleelelelle whatever....wouldn't that fry my amp?...i have the wire that came with the amp kit....i dunno what gauge it is...the box says 4 gauge, i am a newbie at this ****, i dunno nothing about it....

on my instructions for my subs it says "two 4-ohm speakers, wired in a parallel to a bridged two-channel amplifier will present a 2-ohm load to the amplifier. MOST TWO-CHANNEL AMPLIFIERS DO NOT SUPPORT 2-OHM MONO OPERATION! AMPLIFIER DAMAGE COULD RESULT!" and then it has a line through a smiley face lol

so if i parallel them, wouldn't that mean it is pulling more watts from the battery, causing it to shut off even more frequent?

blushadow_db160
01-01-2004, 03:23 AM
what you talking about here understand now, I guess my sisters aren't the only blonds in the family.

ditto985
01-01-2004, 04:22 AM
no one I repeat no one will ever own me

djjdnap
01-01-2004, 04:51 AM
Yea u r the # 1 loser for telling the man its a faulty amp, haha, get a better power supply dog,(lower gauge wire, bigger alt), and remeber the golden rule of amplifier connection....CHECK THE GROUND....always do that b4 u ask any questions...

ditto985
01-01-2004, 04:58 AM
based on what was told in the begining, those are all signs of a faulty amp, besides why not eliminate worst case cenario first?

djjdnap
01-01-2004, 05:32 AM
i would call that scaring people like saying ur guilty b4 u even are tried for ur hearing.. I mean how would it feel if they threw you in jail and then had ur trial..

eaglemn05
01-01-2004, 02:16 PM
i'll probably go with another battery or another alt, cause i read somewhere that there aren't that many 4-cylinder alts that can support an amp.

isn't 4 gauge wire big enough....the ground is on the frame somewhere around the rear strut (my dad's the one that did it and he's a mechanic, he should know where to ground it.) but i do agree it's my battery cause i have a bad memory and i forget to turn off my lights sometimes....lol

eaglemn05
01-01-2004, 05:40 PM
i think i have decided it's the power supply...

i can do a better job of explaining it...here we go...
i have the amp set on low pass filter and L-CHX and R-CHX all the way down (i dunno what they do, but i have them turned down) i have the bass boost all the way up. only one sub hooked up to it

ok i'm listening to Blink 182 - Feeling this....when it goes in the chorus booooooom (my amp makes it through the first hit) then in the middle of the chorus boooooooom (my amp makes through the second hit)....ok it's doing fine and then when it goes in the chorus again it goes boo and shuts off, and then doesn't even try to go through the second hit....i'm no genius but i think my battery isn't charging in enough time....

what other solution is there?
get a capacitor?
get a new alternator?
get a new battery?

please let me know, the battery and alt would be no problem, my dad can get them cheap....but the capacitor is another story...

nosaj070
01-01-2004, 05:54 PM
i can't take listening to this anymore. Aren't you only trying to run a 600 watt amp? Since its a jensen its probly about 550 if you're lucky, and unless your car is real old your alt should have no problems whatsoever running it. It might be your power wire, but 8ga would work and 4ga would be ideal. I think the biggest reason you are having problems is either your gain is set too high, or your making your amp see a lower ohm load than it can handle. Also if your bassboost is all the way up that is acutally waht is probably causing it, not to mention anhilating your sub.
-Jason

ditto985
01-01-2004, 06:49 PM
if it is only a 600 watt amp 8g is plenty, for battery though go optima deep cycle (the one with the yellow top)

nosaj070
01-01-2004, 06:57 PM
if it is only a 600 watt amp 8g is plenty, for battery though go optima deep cycle (the one with the yellow top)

There is no reason to upgrade the battery, the load is on the alternator anyway, different batteries are just more durable.

djjdnap
01-01-2004, 06:58 PM
i say get a new alt first, because if your alt is say 60amps and the amp pulls 80 or whateva getting a new battery will just be like doing nothing because if the alt doesn't charge the battery in time ur gonna have the same problem..
ok dont get a new alt get it rewound to a higher amp.

ditto985
01-01-2004, 07:07 PM
the optima is better at holding more power and drawing from the alt more slowly

eaglemn05
01-01-2004, 07:21 PM
i can't take listening to this anymore. Aren't you only trying to run a 600 watt amp? Since its a jensen its probly about 550 if you're lucky, and unless your car is real old your alt should have no problems whatsoever running it. It might be your power wire, but 8ga would work and 4ga would be ideal. I think the biggest reason you are having problems is either your gain is set too high, or your making your amp see a lower ohm load than it can handle. Also if your bassboost is all the way up that is acutally waht is probably causing it, not to mention anhilating your sub.
-Jason
(i apologize if i am getting on your nerves)
it is a 4 gauge wire...wht the hell is gain? i'm stupid about this stuff, you don't understand...
the car is an 88 ford escort, i dunno if it still has the stock alt. we never really had to worry about that....

ditto985
01-01-2004, 07:27 PM
gain is an adjustment on the side or back of your amp generally you need a really small screw driver to adjust it. The gain is what is telling the amp how hard to work. It never hurts to adjust the gain, but I would agree that it is good place to start if the amp was overheating and turning off, but from what you have said, it does not sound as if the amp is overheating

eaglemn05
01-01-2004, 07:36 PM
gain is an adjustment on the side or back of your amp generally you need a really small screw driver to adjust it. The gain is what is telling the amp how hard to work. It never hurts to adjust the gain, but I would agree that it is good place to start if the amp was overheating and turning off, but from what you have said, it does not sound as if the amp is overheating

nope it's not overheating, it's like it's reseting...
lol maybe the amp is greedy and doesn't wanna give all 600 watts to my subs....
sorry for bothering you guys, i'll see what i can do to figure it out...if there are any suggestions on what to do, let me know

nosaj070
01-01-2004, 11:55 PM
alright well try this, when the gain is set too high (knob turned far to the right) it will start to clip, causing an increase in output, but to keep it short, its very bad. Inorder to set it correctly start with the gain verylow,the hu volume a little above the middle,and play a song you know well. slowly turn the gain up until you hear what you think may be distortion(where the sub sounds like poop) then back it down a little bit. I think you are just really pushing that amp too hard, when i got my first amp it was a jensen and i had hte gain all the way up, because i thought the gain was a volume knob, which it isn't. Mine cut out all the time. Your problem does not lie in the electrical system, so don't worry about dropping lots of money on this problem.
-Jason

PS sorry if i came off as an *******, it wasn't directed towards you, just at the irrelevent posts other people put that would have ended up making you spend lots of money that wouldn't help your problem that can most likely be fixed for free.

eaglemn05
01-02-2004, 12:50 AM
so is the gain the "level" knob, because i don't see what anyone else is explaining to me....the instructions for the level say exactly what your jsut told me...i will play with it tomorrow morning, i'll let you know what i get out of it

eaglemn05
01-02-2004, 10:57 AM
i got it, it works good....didn't shut off....good thing i didn't try to get a new battery or alternator...lol....thanks you guys