Quote: jaddie said:. But part of the high-end is the heat. You can feel it, it's doing something, and don't they all sound "warm"? Joined Jun 27, Posts 1, Likes Yeah class A are quite inefficient My Asgard requires about 30 Watts input power not sure if exact as they've removed the specs. They still have the power consumption specs up. The new Asgard's rated at 30 watts, the original at 35 watts. And for a given quiescent current, the higher the rail voltage, the more power you're going to consume.
Joined Jan 10, Posts 1, Likes Yeah there are sometimes audio benefits of running certain components with higher voltage rails, operating them more in a more linear region, etc. More power supply filtering can sometimes help, and that takes power as well. However, there are alternatives and other designs people can use that are much more efficient, and some of these sound just fine, or very good.
It essentially shuts down the device instantly when a malfunction or error occurs, to limit the harm that could be done to the components or electronics. If your amp is not grounded properly, this will likely cause its performance to be compromised.
It may cut out while sending audio to speakers, or in extreme cases, it could overheat and become a fire hazard. Decades ago when audio technology was in its formative stages, recording at home was nothing more than a distant dream. Musicians would need access to high-end analog equipment, which made recording Their sound quality and convenient design are undeniable, but there are Skip to content Both amplifiers and preamps are devices that use a considerable amount of power.
Are amps supposed to get hot? Amps fall into this category. If your amp seems to be getting hotter than usual, the first thing to check is that the ventilation system is operating correctly. The reason that class A amps get hotter when the volume is turned down is because they consume the same amount of power regardless of the amount of voltage they are outputting to the speaker terminals. Therefore, when the gain is set to a low value, the excess power that is not being sent to the speakers is converted into heat energy.
Related Questions How can I keep my amp cool? What does a bad ground do to an amp? There are several reasons that can cause your amplifier to overheat. You must not take any of these reasons for granted since they can be potentially dangerous in the long run to your amplifiers.
The overheating of amplifiers can be attributed largely to the quality of the amplifier being used. Not all amplifiers are manufactured equally or have the same capabilities. High-quality amplifiers take most of the electrical energy they receive and make use of it. On the other hand, low-quality amplifiers do not make use of most of the energy they receive.
The unused energy dissipates into heat. Typically, high-quality amplifiers are less likely to overheat. This means that high-quality amplifiers use most of the power drawn to amplify the audio signal rather than converting it into heat. Low-quality amplifiers, on the other hand, produce more heat than amplify an audio signal.
Therefore, cheap or low-quality amplifiers waste more power than they actually produce in sound. The wasted power dissipates into heat, and this is what causes your amplifier to overheat.
Hence, a low-quality amplifier must not be left on for extremely long periods. Mismatching of amplifiers to speakers also contributes to the overheating of amplifiers.
The impedance rating of your speaker must correspond with that of your amplifier. I talked about this in much detail in my article on how speakers damage amplifiers. You should definitely check it out. A speaker which demands too much power from an amplifier will cause the amplifier to overheat. This is because such an amplifier will struggle to keep up with the load demands of the speaker. This will cause the amplifier to heat up due to the extra power it is trying to generate.
Blown speakers can cause amplifiers to overheat. Speakers that are partially blown can still produce sound, even though the sound might be very distorted.
These blown speakers demand large amounts of power from the amplifiers they are connected to. This causes the amplifiers to get hot quickly. If you are using ground or power wires too small for your amplifier too thin , the amp can overheat and shut down because it is not receiving sufficient power to make the output you want.
For most car amps, you should use at least 8-gauge power and ground cable for each installed amp. Both ground and power wires should be the same size and run directly from the battery to the amplifier. When you use one or more woofers whose total load is lower than the amplifier has been designed to work with, it may overheat shut down to protect itself.
This is the most common mistake when connecting two 4 Ohm woofers in parallel for a 2 Ohm load and then bridging the 4 ohm amp to the 2 ohm load. If your amp is not prepared to work with a low impedance of 2 ohms, it will heat up due to the extra power needed that it cannot make, and once it gets too hot, it shuts down, or it turns off to protection mode.
The gain control tells the amp how much power you want it to produce, and if you have the gain set too high, the amp will try to make full power right away.
On the other hand, If the gain is set too low, the amp will still make full power, but it might not sound as loud as it should. If an amplifier cannot produce enough power for the demanding speakers, it will quickly overheat. Powerful speakers need to receive sufficient energy, especially at a high volume.
If your amp does not have enough ventilation, it can overheat, and in effect, it can switch to protection mode or completely shut down. Most ventilation issues are temporary, which means that the amp keeps overheating and turns back on after cooled down.
However, when your amp overheats often, it can face permanent damage. Some amplifiers like MTX JackHammer JH are equipped with active cooling fans, so it can be a good option if you do not have much free space in the car and want to prevent the amp from overheating in the trunk. Protection mode means that the amplifier shuts down to prevent further internal damage.
Protect mode also prevents damage to other car audio components, like wiring or radio. When your amplifier shuts down after some time, it is usually caused by the heat, but it also can be caused by wiring problems if it happens right after turning the radio on. Although the amplifier in the protect mode can cause your headache, do not worry. Regardless of the reason, you have to investigate it and remove the cause if you want to enjoy your favorite music again.
Regardless of what causes an amp to overheat, you have to find a reason and stop it from happening again.
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