amp overheating.

well they have had my car all day, have tried a new amp which is doing the same thing, had tried without the sub connected and that worked ok i think( it was bit muffled on the phone), but they have everything original now in with a cd playing instead of my ipod and they say its not having any problems over heating so he is saying that its the quality of music on my ipod not being as good as a cd so its distorting and the amps amplifying that.
they say my aggressive music is making the system work hard( metal music) which i can understand as it is aggressive music.

so does any of this sound reasonable?

ive just told them to disconnect the rear speakers and i will pick it up and see how that goes.
 
utajoker said:
well they have had my car all day, have tried a new amp which is doing the same thing, had tried without the sub connected and that worked ok i think( it was bit muffled on the phone), but they have everything original now in with a cd playing instead of my ipod and they say its not having any problems over heating so he is saying that its the quality of music on my ipod not being as good as a cd so its distorting and the amps amplifying that.
they say my aggressive music is making the system work hard( metal music) which i can understand as it is aggressive music.

so does any of this sound reasonable?
Click to expand...
Nope, you are being fobbed off.
 
i dont no why they would do that though, they have a good reputation and ive not had any problems when ive used them before.
 
utajoker said:
well they have had my car all day, have tried a new amp which is doing the same thing, had tried without the sub connected and that worked ok i think( it was bit muffled on the phone), but they have everything original now in with a cd playing instead of my ipod and they say its not having any problems over heating so he is saying that its the quality of music on my ipod not being as good as a cd so its distorting and the amps amplifying that.
they say my aggressive music is making the system work hard( metal music) which i can understand as it is aggressive music.

so does any of this sound reasonable?

ive just told them to disconnect the rear speakers and i will pick it up and see how that goes.
Click to expand...

no, it's a load of bullcrap. tell them to sort themselves out or you want your money back and you'll be going elsewhere. thats the biggest load of **** of ive heard in quite a while - distortion at the source would have to be horrifically bad for that to happen and im talking so bad you cant hear the music anymore. even then that means the amp is struggling which it should not be.

One amp failing means either the amp wasnt installed correctly (their fault) or the amp was faulty (their responsibility to fix). Two amps failing mean they either chosen a rubbish amp (see my previous posts) or it still wasnt installed correctly or both OR at a massive stretch it could be a problem with a sub or one of the speakers.... Still their problem. Do not let them tell you it's a problem with your poorly encoded music. if thats an issue, stick the radio on and see if it does it then. it will ;)


while we are at it, what are the make and model of the speakers and subwoofer?
 
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Robbie G said:
Regarding what impedance the speakers are showing the amp (from this page).

Assuming his front speakers are 4 ohm, which 90% are, and he's wired the front two channels like this, i.e. parallel:

impspkpr.gif


Which is showing the amp 2 ohms per channel. The amp is rated to run at 2 ohms so I'm not sure of the problem. I can only suppose that the rear factory speakers are actually 2 ohm, causing the amp to be shown 1.33' ohms which it can't tolerate.
Click to expand...


Thats a mono amp diagram. Audio amps are slightly different
 
I think I have just popped a hernia laughing to hard. Your music is to aggressive. That deserves the golden **** award that one.
 
Reality Bites said:
am i being daft or something? How can you power a sub and 4 speakers from a 4 channel amp?
Click to expand...




Tri-Mode Operation • Bridgeable
Click to expand...



CH1 CH2 CH3 CH4

FR FL RR RL

-SUB-


On tri mode capable amps, you can run FR, FL and a sub from only 2 channels. Instead of using the inbuilt electronic crossover, to cut the frequencies, you have to use a passive unit inside the sub box.(a coil)
 
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Gav said:
CH1 CH2 CH3 CH4

FR FL RR RL

--SUB--


On tri mode capable amps, you can run FR, FL and a sub from only 2 channels. Instead of using the inbuilt electronic crossover, to cut the frequencies, you have to use a passive unit inside the sub box.(a coil)
Click to expand...

thats insain, the gain would likely destroy the rear speakers if it's wired up in such a way. tri-mode uses 3 channels btw, not two. emphasis on the tri lol. Also, any kind of passive unit in the subwoofer would need its counterpart in the other speakers - ie, something to cut the bass from them.

No, what they look to have done is the following:

Code: 
 CH1   CH2   CH3+CH4
FL+RL FR+RR <- SUB ->

(which is how my amp is set up in tri-mode, but minus the rear speakers of course)

what we dont know is whether they've wired the pairs of speakers in series or parallel (most probably the latter), what the impedance of those rear speaker are (the fronts are 4ohm) and what kind of monkies that place seems to have employed. Cause they are either really smart, or really stupid.
 
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james.miller said:
thats insain, the gain would likely destroy the rear speakers if it's wired up in such a way. tri-mode uses 3 channels btw, not two. emphasis on the tri lol. Also, any kind of passive unit in the subwoofer would need its counterpart in the other speakers - ie, something to cut the bass from them.
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3 channel is 3 channel

Tri-mode is a completely different entity and works exactly as I described. Passives are not required on the fronts as they would be running in Tri-Mode and would be working at full range.

This is how we were trained to run systems many moons ago. It was a valid system that's not often used now because of the lack of control over the output levels.

18 years in the business so I have a little knowledge on the subject. ;-)
 
Gav said:
3 channel is 3 channel

Tri-mode is a completely different entity and works exactly as I described. Passives are not required on the fronts as they would be running in Tri-Mode and would be working at full range.

This is how we were trained to run systems many moons ago. It was a valid system that's not often used now because of the lack of control over the output levels.

18 years in the business so I have a little knowledge on the subject. ;-)
Click to expand...

why would you want the speakers to run full range when you've got a subwoofer? i concede the point regarding the difference between tri and 3-channel, but i don't accept the lack of a need of filtering on the speakers, especially stock rear speakers.
 
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ok now i believe they are messing me about, got my car back now with disconnected rears.

the fronts are really quiet, i mean standards thru the HU would be louder, the sub is rediculously bassy, even at 5 volume its ridiculous, looked at the amp and all the nobs are turned right down.

whats the latest you can demand a refund for stuff?

im going to have a look for a guide to how to setup an amp and have a go myself but i think i will just get a refund for it all.

i will take some pics of it to show now.
 
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