Amp overheat
06-18-2006, 01:02 AM
#22
As are you for making a totally useless comment. Explain to me how your personal thoughts affect this guys problem? Sure Weston has much to learn, seems so do you.
An amp is designed to get hot. Heat is a natural byproduct of producing power. If you turn on the lights in the house, how long before you cannot touch the bulb? If you start and engine, how long before the coolant gets hot? Heat is normal and natural. What you have here is expectations way up high with no understanding of the root of the problem.
A bad ground can help manifest itself as an increased thermal signature on an amp. Measure the ground return resistance. A gain turned too high will send an amp over the thermal barrier. Too much boost or loudness does the same thing. What you have here is an engine. This tiny little engine you are using, you are expecting to be a big engine which it is not.
As time goes on, heat builds up more. If you plan on using the system on a sustained basis, which according to your description you are, expect it to get hot. If you do not allow the amp to cool, it is going to shut down due to the thermal barrier being broken. If you have the amp mounted say under a seat or have things up against the sides of the amp, you are impeding the flow of the hot air trying to escape off of the sides of the amp. If you have a darker colored car and a hot trunk, there is only so much cooling in the trunk before that air gets hot as well, I bet that the same amp operating in a **** degree envirronment would last a whole pile longer. What you have in your small engine is a redline, you are constantly exceeding the redline expecting the little engine to dish out the copious amounts of bass that you want. It's not going to happen on a sustained basis with this amp unless you get rid of the heat.
Turn the gain down on the amp, turn of any bass boost circuits on the amp, turn off the loudness control, these all send an amp past redline. That shortens the amount of sustained time that the amp can play. If the amp continues to shut down due to heat, time for a bigger amp with more jiggawatts of output, a larger heatsink area, perhaps a incorporated cooling fan or a simple 3" computer fan to blow some air over the heatsink as well.
An amp is designed to get hot. Heat is a natural byproduct of producing power. If you turn on the lights in the house, how long before you cannot touch the bulb? If you start and engine, how long before the coolant gets hot? Heat is normal and natural. What you have here is expectations way up high with no understanding of the root of the problem.
A bad ground can help manifest itself as an increased thermal signature on an amp. Measure the ground return resistance. A gain turned too high will send an amp over the thermal barrier. Too much boost or loudness does the same thing. What you have here is an engine. This tiny little engine you are using, you are expecting to be a big engine which it is not.
As time goes on, heat builds up more. If you plan on using the system on a sustained basis, which according to your description you are, expect it to get hot. If you do not allow the amp to cool, it is going to shut down due to the thermal barrier being broken. If you have the amp mounted say under a seat or have things up against the sides of the amp, you are impeding the flow of the hot air trying to escape off of the sides of the amp. If you have a darker colored car and a hot trunk, there is only so much cooling in the trunk before that air gets hot as well, I bet that the same amp operating in a **** degree envirronment would last a whole pile longer. What you have in your small engine is a redline, you are constantly exceeding the redline expecting the little engine to dish out the copious amounts of bass that you want. It's not going to happen on a sustained basis with this amp unless you get rid of the heat.
Turn the gain down on the amp, turn of any bass boost circuits on the amp, turn off the loudness control, these all send an amp past redline. That shortens the amount of sustained time that the amp can play. If the amp continues to shut down due to heat, time for a bigger amp with more jiggawatts of output, a larger heatsink area, perhaps a incorporated cooling fan or a simple 3" computer fan to blow some air over the heatsink as well.
06-18-2006, 08:54 PM
#24
0 Watt CAFz'r
Join Date: Oct 2005
Posts: 40
Originally Posted by smwing
I know what happen on my INFINITY 7520A, it shut down cause of the protection, and I am petty sure the MTX over heat because it is not powerful enough for my sub, thanks every body a lot....^_^ 
overheating because it's not powerfull enough to drive your sub? hmm can't say i've heard that one before. Let me ask ya a question.do you have the loudness button on? bass turned up on your deck? Gain set at max?
06-20-2006, 08:40 PM
#25
0 Watt CAFz'r
Thread Starter
Join Date: Jun 2006
Posts: 39
Originally Posted by SQTaco
overheating because it's not powerfull enough to drive your sub? hmm can't say i've heard that one before. Let me ask ya a question.do you have the loudness button on? bass turned up on your deck? Gain set at max?
