amp problem

I have a Jensen 500 watt amp and occasionally it will go into protect mode for a while than come back on after maybe 5 minutes...any idea why it would be doing that?

they usually do that when they over heat or something, try turning the bass down just a little bit and see if it keeps it up.

Turn the Gain knob down a bit.
Sounds like your putting to much stress on the resisters.

did you bridge the amp? because if you bridge the amp, it changes the amount of ohms, and if the speakers are diff ohms, it will shut off after awhile.

Originally posted by 90civicrider
Turn the Gain knob down a bit.
Sounds like your putting to much stress on the resisters.

lets get fancy with it why don't we;):D

another question!! if you shut the car off, then on does the amp work again?

that amp should be able to take 2 ohms, i had a 300 that was running at 2 ohms just fine. Im sure its just the amp over heating. Make sure its got plenty of space to breathe, and turn the gain down a little bit on it. Should be fine if it lasts for 5 minutes until it kicks off.

The amp is bridged to 2 ohms, but that is what the sub runs at so being bridged isnt the problem....i thought it might have been overheating but wasnt sure...there is a bass knob and a power knob....which one should i turn down...they are both around 3/4 up now.

yea, probably over heating, just turn the power down a little bit. What sub do you have it hooked up to. a 500 watt amp shouldn't be overheating that bad. but just try turning down the power just a little bit. If your head unit will let you, turn it down there, but that is only if you have a sub output on your head unit.

I have a kappa infinity100.3se 10 inch sub hooked up to it....there is no sub out on the headunit though...i just have a crappy pioneer headunit

Get rid of that piece of shit! Gensen amps are the crapiest amps you can buy! WORSE than the Xplode series.

actually, i HATE sony xplode ANYTHING,......BUT my el-cheapo 250 wattX2 channel amp puts out 800 watts per channel when tested, and it has worked flawlessly since the day i got it, its not one of those shitty ones that is shaped like an "X" on top, its really nice looking, i'll get some pics up if anyone wants to see it

sony is a good boom for your buck!!! there is nothing wrong with sony xplode at all. infact they make really good stuff for the price, now if you compare it to fosgate well then theres a big difference, but theres is also a big difference in price also!!

2ohm mono and 2 ohm stereo are two different stories. Almost all amps will handle a 2 ohm stereo load with no problems, but a lot of amps that aren't competition series wont handle a 2ohm mono load. Lets say your speaker is DVC if you hook it up parallel both voice coils and bridge it on the amp, you have a 2ohm mono load and the amp might shut off. Try hooking the voice coils up in series and run an 8ohm mono load or better yet, run a 4ohm-per-coil stereo setup.

I used to have that same problem wiht my lightning audio amp. It was bridge and i had it all the way up untill it got some distortion and it was just mounted on the trunk floor and alwasy overheated. But then i mounted it to the back seat in the truck now it has enough room to cool off and its out of the way of anything else and it looks professional.

IMO rockford is shit as well... You want good shit, you have to pay good shit prices... Keep in mind I paid over $5000 for my setup, 2 amps 1 12" sub with 500 wats goin to it, a pair of 6X9's a pair of 6.5's and a pair of 1" neodium dome tweeters being powered by 300 wats RMS. Of course I left ALOT of stuff out but I already sold it due to weaght issues and dont want to recap on everything. It was all JL gear and the 6X9's would probably blow away most of the 10"/12" subs you guys are playing with. My one sub ate three 10" Rf Power punches eating a "Soposable" 1400 watts. How is this posable? Eficiancy, MOST companies (Except the ones who charge the $$$ and dont have to lie) will say that there amps put out X amount of power... Im not even getting into how they test these things (Perfect Imviroment) but they wont even come close to making the claimed power in real world situations, the thing to look for is the RMS which is the repetative amount of power the amp puts out because they often say that an amp will put out X but that would be a peak power. JL and a few other AWSOME companies have amps that put out the same load RMS as long as you are in the OHM window... My Mono Block amp was 8Ohm to 1.5Ohm stable, meaning it put out the same 500 watts rms at any load inbetween and had a "Peak" power output of 800watts. If you are interested in stereo's hit me up I'll give you the lowdown, I got stereo knowledge comming out my ass. But here are a few TOP notch brands I will stand by, JL, PhenixGold, ImageDynamics, infinity.... Those are four TOP competetors in todays REAL world systems I have heard. BTW I heard A as in 1 IDMAX sub that hit 162DB's and did it clean as hell with 2400 Watts goin to it.

Seth, really Jensen isn't that bad. I'm not sayin they are the best, or anything near, it. But they are a decent amp for the money. I'm sure you telling him to get rid of it isn't helping him fix his problem. Name brands are just a personal preference like just about everything else. Me, I like MTX, MTX is my favorite brand, and probably will always be that way. just a personal thing.

Look, if you are running the amp at a 2ohm mono load, you are over driving the amp. The jensen can not sustain that impedence for a long time. I would run the amp 4 ohm stereo, or 8ohm mono. You will extend the life of that amplifier. Everything has it's breaking point. Running that amp at 2ohms is like getting in your car,, and driving form one side of Texas to the other with your foot planted to the floor as fast as you can go, and never lifting your foot off the gas. Now tell me, will your motor heat up and shut down? Will it at least hve some kind of damage due to OVER DRIVING the motor? The answer is yes. You are doing the same thing to that amp. Be kind to your equipment and it will last you a long time.



And Seth, Rockford is not shit by any means. If you think Rockford is shit, then I am going to have to say it was either hooked up wrong or you bought some used equipment and it was damaged. Rockfor Fosgate has some of the best equipment out there. Since their debut on the IASCA circut they have taken first place in every dB/SPL compition. and also keep setting new records. Do some research before you go bashing a product.

seth what are u talling abuout!!! rockford is better than jl!! just because you got screwed over on your 5000 dollar system doesnt mean its good!

How would I hook the amp up in 8 ohm mono?

When I got the amp it said if I was only running one sub I should have it bridged at 2 ohms....but since that is apparently not working how would I hook the amp up in 8 ohm mono? 4 ohms stereo i just run one channel.

Originally posted by 1990civic
seth what are u talling abuout!!! rockford is better than jl!! just because you got screwed over on your 5000 dollar system doesnt mean its good!

I disagree, one of my buddies here at school has 4 JL 10's in his sonoma and it sounds way cleaner than any fosgate setup I have heard.

Originally posted by 1990civic
seth what are u talling abuout!!! rockford is better than jl!! just because you got screwed over on your 5000 dollar system doesnt mean its good!

Ya dont know shit about stereo's dude... You think Im an Idiot? Im gonna go spend $5000 on a system that doesentr work as good as a $2000 Rockford system? My 12" W6V2 with 500Watts OWNED 3 10" Power Punches with 1400 Watts goin to them... I drownded them. Secondly, any company that makes Half ass gear sucks IMO. Like rockfords baseline series. JL doesent even have one anymore, the shitiest speaker you can buy from them now is a W3V2 which I used to own two of and these were WAY louder than the 12" W6V2, not quite as clean... I would turn my stereo up half way and go half deaf...

seth you really talk a lot of shit man!! your the one that doesnt know shit!

Originally posted by 1990civic
seth you really talk a lot of shit man!! your the one that doesnt know shit!

I have yet to see you make an intelligible comment about audio in this thread other than to say that seth doesnt know his shit.

I talked some more with my friend at lunch, and he said while Fosgates may out bump a JL, the JL will always hit a lot cleaner.

c'mon melt i have seen your set-up dont you start talkin shit! jl is a great brand, but to call fosgate shit, that really shows he doesnt know what the fuck hes talking about.

Originally posted by Melt


I have yet to see you make an intelligible comment about audio in this thread other than to say that seth doesnt know his shit.

I talked some more with my friend at lunch, and he said while Fosgates may out bump a JL, the JL will always hit a lot cleaner.
HEY!

Originally posted by mightytexn
How would I hook the amp up in 8 ohm mono?
you have a dual voice coil woofer correct? if you have a dual 4ohm voice coil woofer, you need to series the voice coils. that will give you 8ohms. pleas e tell me exactly what you have.

Originally posted by 91EF3ZC

you have a dual voice coil woofer correct? if you have a dual 4ohm voice coil woofer, you need to series the voice coils. that will give you 8ohms. pleas e tell me exactly what you have.

The sub has only one voice coil....it supports 2 4 and 8 ohms....the amp is supposed to be 2 and 4 ohm stable....it is 2 channels and puts out 250 watts per channel

Originally posted by mightytexn


The sub has only one voice coil....it supports 2 4 and 8 ohms....the amp is supposed to be 2 and 4 ohm stable....it is 2 channels and puts out 250 watts per channel
the voice coil on the woofer can only be 2 or 4 or 8, it can't be all three.
but since you have a single voice coil, I am going to assume it is 4ohm.
if you are running your amp one channel at four ohm then you should have no problems. I am pretty sure the amp has a switch on it that says 2 or 4 ohm right? if it does leave it at 4ohm. also when you bridge the amp to one channel, make sure you use the correct positive and negitive out put terminals.

Originally posted by 91EF3ZC

the voice coil on the woofer can only be 2 or 4 or 8, it can't be all three.
but since you have a single voice coil, I am going to assume it is 4ohm.
I am pretty sure the amp has a switch on it that says 2 or 4 ohm right? if it does leave it at 4ohm. also when you bridge the amp to one channel, make sure you use the correct positive and negitive out put terminals.

The book that came with the sub says it will support 2 4 or 8.....it recommends 4 but says it will work with the others.....there is no switch for changing the ohms on the amp....I believe it says it puts out 2 ohms when bridged and 4 when it is running on one channel, but I might have that backwards.

you see ohms is the resistance of the voice coil. for example, a JL 10w6
is a speaker with two 6ohm voice coils. you have a single voice coil woofer. what brand of woofer is it? I don't understand why you say it supports 2-4-8. that makes no sense at all. the amp owners manual would say that. do you have a multi meter? volt meter? you can check the voice coil your self.

Originally posted by seth 90DX/ZC
IMO rockford is shit as well...

whoa whoa whoa back up man, Rockfords not shit, i bought Old 12" Punches with a fixed hole in one of em, they still pound really well and sound like brand new, i have no complaints wut so ever with rockfords, they r the best speakers i've heard right now, granted i've heard one guy with a JL but his sounded like shit, dunno if he fucked it over or not but i know JL has a good rep. but IMO Rockford kicks ass, i'm just waitin for my amps to get here now. my buddy had his 2 lightning audios hooked upto these subs and they sounded amazing so i'm buyin those amps off him when i get the cash and payin 200 for them both, 100 bux each, and my subs pounded really well, u could hear his Jetta like 5 blocks away when he had this system in his car so Rockford has a great rep. with me, just my 2 cents

It's an Infinity Kappa 100.3se 10" sub....in the book that came with it it says that the amp powering the sub can be 2, 4, or 8 ohms, but 4 is recommended....I'm at school now so I don't have a multi meter to test it.

my friend works at infinity, hold on.

he is e-mailing the owner's manual to me right now.

Alright thanks....I can't bridge it so its 4 ohms can I?

if you bridge your amp to one channel(mono) with the sub you have you will have a 4ohm mono load

so, in conclusion I am going with your amp is damaged. and can't work any more. with that sub you sould consider a better amplifier.

Just to recap page 2, I am not calling fosgates shit by any means, I was just saying that the JL's generally hit cleaner, while the fosgates hit really hard.

Originally posted by 1990civic
c'mon melt i have seen your set-up dont you start talkin shit! jl is a great brand, but to call fosgate shit, that really shows he doesnt know what the fuck hes talking about.

Yea... LOLS. You show me one sub that Fosgate makes (The best) I'll show you a JL that will whoop its ass in both sound and DB. Secondly, when I say its SHIT, I mean there is better stuff out there... RF is sort of in the middle as far as Im conserned. Not quite Xplode/Jensen but no were near AudioBahn/JL/PG/ID.... I'de rather buy MTX shit thats for sure... Cleaner, louder and cheaper... Wait, I guess Rockford is shit then isnt it... You want me to start busting out the physical attributes of subwoofers?

i know you did not just put forsgate close or even in the vacinity of jensen. that just really shoes me what you know about subs. seriously dont even reply to this (i know u will anyway) its like im talking to a wall. i know you like jl, but just because SETH likes jl doesnt mean its the best, i mean who the hell do you think you are anyways!

How about a subwoofer that is rated @ 165 DB's that is an SQ based sub that can put out WELL over 165 if done properly and can take 2000 Watts... Thats a JL W7.
http://www.jlaudio.com/subwoofers/w7faq.html
Q.Are the W7's SQ woofers or SPL woofers?
A.Yes. Let's just call them "SQL" woofers.
Q.Are these things really all that?
A.Yes... And then some.
Go look at the specs... Then tell me if you find fosgate makes anything EVEN close.

Or how about the Image Dynamics subs? Power RMS
1000 Watts EIA, (1800 Watts Music Program)

Recommended enclosure
1.30 -1.52 cu.ft. sealed (1.8 – 2.50 cu.ft. vented @ 28Hz), Infinite baffle

Xmax (linear)
24.9 mm, (0.98 inch) one-way

Xsus (maximum)
3.5” peak to peak

Voice Coil
Dual 2 ohm or Dual 4 ohm configuration

Sensitivity 1W/1M
93.1 dB 50-150 Hz ground plane. No 88.4 dB

like i said before your gonna have a ONE SIDED opinion. but i dont give a damn what specs you give me you compare fosgates best sub to jl's best sub you will have a close competition!

Originally posted by 1990civic
i know you did not just put forsgate close or even in the vacinity of jensen. that just really shoes me what you know about subs. seriously dont even reply to this (i know u will anyway) its like im talking to a wall. i know you like jl, but just because SETH likes jl doesnt mean its the best, i mean who the hell do you think you are anyways!

I know you got a badass atitude you must maintain... But in real life, you have never fuxed with all this stereo shits... I HAVE! I used to work in the car audio department at GOOD GUYS and got to play and hook up all diferent kinds of shiot... So dont give me this seth like jl bla bla bla... I dont even own a stereo anymore because I think they are fucking stupid. Secondly, I noticed you have "Targeted" me to talk shit to... I dont give a fuck what you think about my "Oppinion" you have your own and I have dealt with about 5000 peeps who do drag SPL... Also, you wanna talk shit to me and be a badass? All I did was state my OPPINION and you start talking shit. I think you own RF gear and your trying to deffend it as best you can. FINE, why talk shit... Show me some new magical sub RF has made (Specs) and blow me away...

and heres the problem 90% of the time people dont hook there system up right, to much power, not enough power, etc. so just because you heard a bad fosgate setup you cant just assume all fosgates are bad, i have heard better sound out of fosgates, than jl's but i dont assume that fosgates are better. i look at it this way unless i actually hook it up myself i can't judge either of them.

Nobody ever said RF was the best, all everybody is saying is that RF is quite good, but not the best. I got 2 12" RF subs, and my bro has 2 12" JL W6's and yeah, the JL's are better, but not enough to make me want to switch brands.

bitch you the one who said fosgate is shit! you are the biggest racist i fuckin know, anybody who talks like that over the computer i know is a pussy, and under the age of 16.

marc-os you must not have read my last post. how do you know your not comparing an underpowered sub to a well powered sub? also what if the cars are different sizes, what if one is a hatch, and one is a truncK.

Are they V2's or the old ones? JL only makes the V2's now... The W3V2 has been there BASE model for about a year now... I got to play with them when i was working a GG, I bought a pair. I have played with all kinds of subs on all kinds of amps. I noticed that certan amps complement certan subs. But in the sound room, JL was allways king shit! (Thats because they didnt carry PG od ID) The IDMAX would hang/win a W7... I know the PG Titanium will.

Originally posted by 1990civic
bitch you the one who said fosgate is shit! you are the biggest racist i fuckin know, anybody who talks like that over the computer i know is a pussy, and under the age of 16.

Show me evidence of these racist comments. :finger:

alright, you 2 need to calm it down some. I have said this many of times, its a freaking Personal Preference mainly. Also it does have to do with how the system is hooked up. A lot of people don't hook their shit up right. Now Seth, I have to disagree with you ranking Audiobahn up high. I have heard so many Audiobahn's, and every one of them sounded like crap. Sure they hit pretty hard, but the quality was so horrible. That is why I take MTX over any of them. Nice, deep, clean, loud. Alright, enough about what subs are best and whatnot. Get back on topic. If you wish to argue over which is better, either try a PM or start up a new thread maybe.

Originally posted by Melt
Just to recap page 2, I am not calling fosgates shit by any means, I was just saying that the JL's generally hit cleaner, while the fosgates hit really hard.

i know u didnt call them shit but seth did, thats who i was commenting onm i generally liked ur post cuz u didnt slam RF just said one hits cleaner and stuff not just saying its shit

you can't compair a JL w-7 to any normal woofer. you need to put that thing up against the JBL GTi woofer
http://www.jbl.com/car/GTi/newseries.asp

and I was just at a Rockford Fosgate Product training seminar last week, they are comming out with a woofer that will compete with the W-7.
The thing weighs 90lbs! has 3 inches of travel!

well melt the racial slur posted by seth was removed by either himself, or a moderator!

alright to clear up the fuss here,

my Alpine Type R's are the best ;)

Originally posted by 1990civic
well melt the racial slur posted by seth was removed by either himself, or a moderator!

oh, aight :cool:

****, here in cali is a common word just like homie... Shit, my boys say whatup niga to my ass all the time, Im white... So Im sorry if it offends you and thats is why I removed it. However, I dont believe that it should offend you because if a black man said it to you would you be tripin? No, so you automayicaly ASUMED that im not african american. I must be white because Im posting in a forum on the internet right? So wtf are you doing here? :eek: Im not racist at all dude, I hate everyone the same ;) Also this is WAY O/T from amps. You ran out of shit to say about stereo equipment because I owned your ass, now your tryin to make me sound racist.. :flipa:

I have the 4 JL W3's in the extended cab truck. (160 for each W3V1 at goodguys*4=$640), I listened to a tahoe with a 1500dr Arc amp(like mine) and it had 1 W7 in it with a ported enclosure and my system out hits it buy quite a bit, the stereo guy couldn't believe how much my roof was flexing and it was just thumping, this is a well known place in Modesto(Sounds Unlimited) and they have done some incredible systems over the last 20 years or more. I also out hit another tahoe that had 2 W6V2 in it with the same amp and a ported enclosure, the W6V2 cost like $400 or more, so that $800.(Oh yeah my box is sealed, its too loud as it is)

Well my point is, Seth is in idiot, because a W7 is a waste unless you have limited space, which Id rather have 2 W3V1 for $320 than a W7 for $750. And the box is like $200 for the W7. Also, I personally have heard fosgate out bump JL for years, but still like the sound of JL(its just a damn preference!)

Fosgate is coming out with new stuff, so look out JL, the W7 might get beat up, we will see... Also this is so funny how it went from a Jensen amp to a $750 speaker.

Also I love the sound of the 10 ich in a cab, but in my brothers accord I liked the 12, we all have to agree on this, right?