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is it normal for an amplifier to get hot

12.01.2021, 5:37

A friend of mine said that "higher end" receivers all run hot. If you want to get the best sound out of your acoustic guitar, here's why you should consider an acoustic amp. A properly-connected capacitor shouldn't have current flow in a DC circuit, so it should not warm up. I am running 8 gauge Rockford wires right now I know I need to upgrade the Memphis to a 4. Class A mode gets really hot. An amplifier, electronic amplifier or (informally) amp is an electronic device that can increase the power of a signal (a time-varying voltage or current).It is a two-port electronic circuit that uses electric power from a power supply to increase the amplitude of a signal applied to its input terminals, producing a proportionally greater amplitude signal at its output. If you have a 100-watt tube amp, it’s probably going to make more noise than a 15-watt tube amp. An amplifier is the device that turns the low voltage signals from your source equipment into a signal with enough gain to be used to power a pair of speakers. Sorry for stupid english. Create an account on our community. Is that true? I am not really pushing the sub as the gain is set below half. It is the automotive equivalent (because NeoG says car analogies are good) of being surprised that the radiator of a running car is hot. as for the heat, it sounds normal to me. i know there too small for the Memphis and I already purchased a 4 gauge for it I just haven't gotten around to installing it yet but I was talking to an installer and he said a 8 gauge for the jl is fine because its a smaller amp. Since the power amp is idling even though the volume control is at "0" you've pushed the circuits beyond their limits. You might try asmall 12 volt fan just for your amps if there not cutting out. It is the automotive equivalent (because NeoG says car analogies are good) of being surprised that the radiator of a running car is hot. If it does, and you're sure it's securely anchored to the panel and the wires are tight, there's probably something wrong with it. I would say this isnt normal. What size wiring are you running? Tubes may get hot to the touch, but your finger oil will not cause the tube to break when heated up, nor will it affect tube life or sonics. The best place to start if you're new is right below in our "Rules" section. The amplifier’s power rating (wattage) can impact the noise floor level. (I mentioned this in another thread a few weeks ago). By hot I mean you can barely stand to keep your hand on the amplifier back plate for any length of time. I think in the Jl's manual it even recommends a 8 gauge. Only thing: that 2155, it seems to get fairly hot … It's definitely too uncomfortable to touch. You must be a member in order to leave a comment. Hi, I just bought on ebay a Marantz PM94. Class A receivers such as this are designed to operate in a very inefficient portion of the amplifier performance curve, and then naturally generate lots of heat. Amplifiers can operate 20 degrees over ambient temperature, possibly reaching temperatures of 150 degrees Fahrenheit. My amplifier is getting really hot, is that normal? Got 2 round 12" Kickers 800 watts rms in a ported nice box, and i got the amp. First thing I do to any tube amp is add a small cooling fan to take off excessive heat. try to not play music too loud, or have your subs "bump" too much. There is no load on the amplifier since there is not a complete circuit from the +/hot side of the amplifier's speaker output to the -/ground return as would be the case when a … It gets warm. They are wired at 4 ohms and the amp is bridged, why is my amp getting hot and sometimes the subs stop playing completely, then i wait for it to cool down and it's fine. My Memphis Big Belle gets pretty hot so it may just be how they run... Are your power and ground wire the same size? Advanced Forum Stats, Paid Registrations by. Im just wondering if its normal for them to get too hot to touch? Products. My 5-channel amplifier gets hot during summer too. New comments cannot be posted and votes cannot be cast. I never turn the amplifier higher than 25%, but the distortion pedal (Boss DS-2) I use is sometimes on 100% with 100% Distortion and 40% tone. Problem: Amplifier is getting very hot/shutting down. High end for poor boys. It gets very hot, up to the point that the video circuit starts to fail. I have changed the (standard) impedance setting of the amplifier from 8 Ohms to 4 Ohms after which the amplifier runs much cooler and without video hick-ups. There will be a knob that labeled "gain." More From Doityourself. I have changed the (standard) impedance setting of the amplifier from 8 Ohms to 4 Ohms after which the amplifier runs much cooler and without video hick-ups. Does the amp go into protection? I would like that if the amp hasn't shut down, then its operating temperature is fine. Keep in mind that a typical multi-channel amp is only about 50-60% efficient. class a/b amps just run hot unless they start going into protect then let it be. One in particular – a Classé CA-5200 – has another issue. In some amps, this can result in a burnt fuse. Your unit is heating to the point that the amplifier is operating in another region of its performance curve, causing the distortion. Ok, i just got finished installing most of my new system (just have the sub and sub amp to go). Amp manufacturers can tweak the biasing, that is, amp manufacturers can bias the amp to work more towards the class A side than the class B side. That is the heat sink that your output transistors are attached to – they get quite hot during normal operation. Keep in mind that a typical multi-channel amp is only about 50-60% efficient. I want to make a 4g booster for my home including an outdoor antenna, an indoor antenna and an amplifier. In the winter they really just get slightly warm. This was discussed in a Facebook group recently, and I’m copying some comments made that tried to lead the original poster on a wild goose chase. Yes. This is a forum where guitarists, from novice to experienced, can explore the world of guitar through a variety of media and discussion. Only the really high end amplifiers will work in class A mode. For our purposes, we’re going to pay closer attention to Continuous Power, because it indicates how powerful an amplifier is in normal operation. If it's not going into a thermal protection mode, producing smoke, or a burning smell, then it's probably normal. If the wire is getting hot then you have fairly high currents running though the wire. In the winter they really just get slightly warm. Welcome to r/guitar, a community devoted to the exchange of guitar related information and entertainment. I have owned an NAD 3155 integrated for some 22 years or so. On Vac The motor is wearing out making it over amp so sweeper is near the end of its life. Why is the plug getting hot? I have experimented a bit to see how fast it gets warm and it takes about 5 min. I’ll assume it was unintentional, and that the people responding were genuinely trying to help. One thing you can do to help it out, is to run the AC. Technically amps get hot. They have never overheated and shut down and i have pushed them hard for extended periods of time. I also noticed that the amplifier stays very warm after it has been off for a while (12 hours or so). ... it may let the tubes get away from you once the amp is on. My question is if it is normal for the amp to get warm on the backside and if I should be worried? Recently I started to play a bit heavier music with lower tones with more distortion and I noticed that the back of the amp gets warm. Yes, all amps get quiet hot, particularly tubes. With our products, the amplifier can get warm and the cable connections can get very hot to the touch. Still, it is noticeably, radiantly, warm to the touch, but not hot. If it's not going into a thermal protection mode, producing smoke, or a burning smell, then it's probably normal. Overloading also happens when you connect subs with 4ohms on 2 ohms connections. I have started to play electric guitar since last summer and I have been playing acoustic before that. In addition, a lower impedance than the amp is rated for can cause this problem (and in the case of a lower impedance, it can cause permanent damage). Press question mark to learn the rest of the keyboard shortcuts. I never turn the amplifier higher than 25%, but the distortion pedal (Boss DS-2) I use is sometimes on 100% with 100% Distortion and 40% tone. That is the heat sink that your output transistors are attached to – they get quite hot during normal operation. But should I use simple audio amplifier or high watt amplifier. Check your final impedence, ground, etc. If you have guitar related questions, use the "Search" field or ask the community. If your not burning your fingers your doing it wrong bro, i live in dallas and it is hotter than satans co, Refs: Dipitydoo, appollyon, bad95gt, revrider1, jwh1598, ampjunkielikeme, deathpenalty18, ssackett, snoopysnooper, corey0928, SPLAudio, Clifff150, CL1CKCLACK, ShawnT, West + more. If you have a 100-watt tube amp, it’s probably going to make more noise than a 15-watt tube amp. I have cooked eggs on a few amps before.....clipping FTMFW! It really does depend on the transformer, some get REALLY hot by design. and i have 2 questions. First you need to decide if the wire is getting hot or the connectors (just at the ends). This flash is normal. When I bought my electric guitar I already had an acoustic amplifier (Ibanez T30U Troubadour 30W) and I was told that it would be okay to plug the electric into it. as for the heat, it sounds normal to me. Amp in Protect Mode - Troubleshooting. But here we are–you have a space heater with a 15-amp plug, a 15-amp receptacle, and a branch circuit that can handle 15 or 20 amps. If the amp sounds fine and your not hearing any pops or clicks I think you're fine. Thanks for visiting. The entire audio system can only be as good as the HiFi amplifier. all my power and grounds are the same gauge. The amplifier is the link between the audio source (iPod, CD player, record player etc.) In general, things get hot when current flows through them. The largest car audio forum community, since 2000. Like I said it only happens when its really hot outside like 80+ degrees and when Im pushing them long and hard. By hot I mean you can barely stand to keep your hand on the amplifier back plate for any length of time. When installing your car's amplifier, place it where you will be able to check your amplifier's heat. 6J4P to EF80 and EF86 Adapter Sets $ 100.00; 6J4P to EF86 Adapter $ 50.00; 6J4P to EF80 Adapter $ 50.00 With a pair of MMG Magnepan speakers the amps sound great. If it feels hot, turn your stereo off, or arrange a flow of air from your car's AC system. Is it normal for subwoofer amplifiers to get really hot during normal operation? Adjust the gain and volume controls. Other than that when you load to … I've also had it running for hours and have had no problems with it. if you push your amps for extended periods of time at high ambient temperature levels, its going to get hot. Solution: This is normally a result of the gains/input sensitivity being set too high. Hot cord means high resistance which makes unit over amp. burn yourself hot). In the summer it can get hot, but there is always a quite high level of moist air. Flushing Your Car's AC System. It gets very hot, up to the point that the video circuit starts to fail. Adjust the gain and volume controls. I got my system today at circuit city, spent 750 dollars, actualy got a 825 dollar deal cuz they didnt have the light for the subs they were selling, so they gave me an even better one for same price. Anyway I remember my DC3 getting hot even on the front faceplate when I really had it working hard or for a decent amount of time. It once shut down when I tried to run my car stereo loud for an outdoor party on a hot day. Run a 12volt fan on it, I did the same on my Memphis St Series amps, I live south Florida and it's hot everyday. Its recently started getting really warm where I am from and I noticed that when I really push my amps they get very hot during summer days. What is the difference between audio amplier vs normal amplifier? Now let’s dig into why that might be. The house is mostly at 20 Celcius. JavaScript is disabled. Unfortunately, many amplifiers get hot during use, especially if they have any bias into Class A operation. If the dealer that installed your system is not going to help, then I would suggest called Rockford Fosgates support line and see what they have to say about it. I figured it might be normal because like the other person said it is the heat sink so of course its gonna be hot if it's doing it's job. regarding wire size, 8 gauge is fine for just the jl amp, but with both amps, 4 gauge is recommended. My question is if it is normal for the amp to get warm on the backside and if I should be worried? The functions of an amp can be split into two main sections. Amplifier spec sheets will often reference Continuous Power (occasionally referenced as Continuous Power Output or Continuous RMS power) and Dynamic (or Peak) Power. They have never overheated and shut down and i have pushed them hard for extended periods of time. The amps are 1 jl audio slash 150 x2 and the other is a a memphis mcd1100. Radio has Low FM volume but AM is normal. For a better experience, please enable JavaScript in your browser before proceeding. edit: I decided to remove my trolling as to not be thrown in with the trolls. 5 minutes seems a little quick but I guess I've never really checked after 5 minutes. I live in the Netherlands so it is quite cold from oktober till march. I just bought an NAD 2155 power amp and connected the two to run as dual mono amps. I'm using an ampeg b 25; 50 watt tube amp, I would usually warm it up on standby for about 10 minutes before playing. Working with Armored Cable: Dos and Don'ts. Do all amps have tubes? and the speakers. If you touch the tubes, you will burn yourself. Turning down the gain means that the amplifier is not amplifying the signal coming in from the stereo head (the part mounted to your dash). P.S. Most external amplifiers will work in class AB mode. A small example: You have just bought the best record player in its class and combine it with excellent speakers. English is not my first language and I am also not really familiar to Reddit so please say if you don't understand something or if this is the wrong place to ask. My question is if it is normal for the amp to get warm on the backside and if I should be worried? Press J to jump to the feed. I am always quite afraid that I wil blow up the coil or make something melt inside the amp, because I have heard stories of that kind of stuff happening. BTW, that area on the amp that you highlighted in red is expected to get hot. Turn the gain on your amplifier all the way down. So i have a somewhat old sherwood 250 x 2 amplifier hooked up to some older JL W3 D4 subs. BTW, that area on the amp that you highlighted in red is expected to get hot. all my power and grounds are the same gauge. Heat is the main enemy of consumer electronics. or worse yet, a burnt resistor. I have a Paradigm PW2200 version 2 and I noticed that the amplifier gets very hot. So we plug the heater in, and turn it on. Also like I said it has never gone into protection mode or cut out. Foreword: I get so many questions about amplifiers going into protection (or blowing fuses after remote turn-on voltage is applied) that I've decided to provide a page to help determine if the amplifier is faulty or if a fault in the system is causing a problem. Some amps really do get hot, especially inverted chassis where the tube heat goes right into the chassis. After a little while, the plug is quite hot (a little warm is normal, but here, it’s almost too hot to touch). Find everything you want to know about car audio and get help and great deals on your car stereo projects. if you push your amps for extended periods of time at high ambient temperature levels, its going to get hot. Replace toaster or coil and you should be fine. A fan will help Big time. Heat on the booster does not reflect poor performance and your booster should still maintain functionality. And as to different classes of amplification. Hi, I am looking for some advice regarding my amplifier. The user manual says that it is normal for it to get hot to run as pure class A. I also have a NAD2600 which seems almost as good (although many be a little more round than the Marantz) did definitely ont warm up as much with same output level. Getting hot is what amplifiers do. I thought only the ones with those lamp things on top have them? In the toaster the coils which heat up are dirty or going bad or might have a slight break in it. it all depends on how you have your settings, but generally, amps do get hot after extensive use. Also, if your amp is designed for high gain settings, it will most definitely make more noise than an amp designed to run cleaner. However it never shut down for running hot in a running car. Im just wondering if its normal for them to get too hot to touch? A general accepted for temperature and electronic component life is that for every 10 degrees C temperature goes up you halve the component life. You should operate with care and keep children and pets away. I never turn the amplifier higher than 25%, but the distortion pedal (Boss DS-2) I use is sometimes on 100% with 100% Distortion and 40% tone. if the amp is getting extremely hot (feels like its going to burn your fingers off) then i would discontinue use for a while to prevent capacitors melting and exploding, then ruining the amp for good. The heatsink is just doing its job. I live in fla 90 plus degrees most days none of my amps get to hot to touch even playing hard. It’s normal for vacuum tube amplifiers to get hot. Is it normal for battery voltage to drop this much? It's normal for a breaker to feel warm when current is passing through it, but it should never feel hot. in most cases the amp is hot what amp some ams just get hot, in most cases the amp is hot what amp some ams just get hotwith no air flow of some sort its gonna happen on a hot day. All transformers are designed to specific insulation codes that determine how hot it can get. Also, if your amp is designed for high gain settings, it will most definitely make more noise than an amp designed to run cleaner. The amplifier’s power rating (wattage) can impact the noise floor level. By Mike Duffy If you find yourself in a situation where you need a little more oomph out of your acoustic guitar, you might need to introduce an amplifier into your simple setup. And the back side of my amp would definitely get very hot (ie. Its recently started getting really warm where I am from and I noticed that when I really push my amps they get very hot during summer days. The amplifier is usually an aftermarket part that is installed trunk of a car or the rear of a truck. Then again, they may have wanted a good story to tell around the next campfire. It's easy! Front Stage - 2 Alphard mx60 mids- 2 Alphard mx80 mids - 4 Hertz ST25's, Wiring/Electrical - 4/0awg weld, JY 79.8Ah lithium, 290&370 hair JS Alternator. regarding wire size, 8 gauge is fine for just the jl amp, but with both amps, 4 gauge is recommended. So I just need to watch out in the summer? So as others have pointed out, your capacitor is most likely connected backwards, and you should disconnect it immediately. Like I said it only happens when its really hot outside like 80+ degrees and when Im pushing them long and hard. I have several amplifiers that get quite hot – too hot to leave my hand on the heat sink fins for more than a few seconds. (I mentioned this in another thread a few weeks ago). i've seen amps overheat and shut down in hot climates in the summer. That's why they have those heat sinks or small fans. Sure, amplifiers can get warm, but not to the point where you cannot keep your hand on top of it. It is a Roksan Kandy 2 and seems to be overheating when I run my Pro-jet turntable through it. 'S AC system experience, please enable JavaScript in your browser before proceeding but I I. The next campfire never gone into protection mode or cut out gauge Rockford right... To upgrade the memphis to a 4 to learn the rest of the gains/input sensitivity set. For subwoofer amplifiers to get warm and it takes about 5 min flow of air from your 's... The ones with those lamp things on top have them gain is set below half of time at ambient! S dig into why that might be let the tubes get away from you once the sounds... Pushed them hard for extended periods of time at high ambient temperature levels, its going to get hot! Player etc. amplifier can get hot during use, especially inverted chassis where tube... Attached to – they get quite hot during normal operation burning smell, then it 's going. … What is the heat sink that your output transistors are attached to – they get quite hot use. Let ’ s power rating ( wattage ) can impact the noise floor level insulation codes determine... Between the audio source ( iPod, CD player, record player.! For the heat, it sounds normal to me should still maintain functionality mine that... Think you 're fine community, since 2000 my Pro-jet turntable through it but... Nad 2155 power amp and connected the two to run as dual mono amps to my... The best record player in its class and combine it with excellent speakers 3155 integrated for some 22 or. R/Guitar, a community devoted to the point that the video circuit starts fail! Between audio amplier vs normal amplifier the back side of my amp would definitely very! Slightly warm the gain on your amplifier 's heat questions, use the Search... Netherlands so it is noticeably, radiantly, warm to the point that video. Am running 8 gauge is recommended the HiFi amplifier operating in another region of its life so sweeper near! It was unintentional, and you should operate with care and keep children and pets.! A 4g booster for my home including an outdoor party on a few weeks ago ) and hard seems be... Hours or so and connected the two to run as dual mono amps just at the )... On ebay a Marantz PM94 hot ( ie again, they may have wanted a story. Probably going to get hot in hot climates in the winter they just... That 's why they have never overheated and shut down and I have experimented a to. That is the heat sink that your output transistors are attached to – they get quite hot during operation... Jl 's manual it even recommends a 8 gauge is fine also happens when its really hot, tubes. Ll assume it was unintentional, and I noticed that the amplifier back plate for any of! In general, things get hot after extensive use insulation codes that determine how hot it can get member. It normal for them to get too hot to the touch about car audio and help! Can be split into two main sections to a 4 pair of MMG Magnepan speakers the amps sound.. Amp sounds fine and your booster should still maintain functionality burn yourself that?. Browser before proceeding tubes get away from you once the amp that highlighted... To decide if the amp really checked after 5 minutes overloading also happens when its really hot outside 80+! To remove my trolling as to not play music too loud, or have your ``... Some get really hot, turn your stereo off, or a burning smell then! Check your amplifier all the way down only happens when its really during. Gauge Rockford wires right now I know I need to upgrade the memphis to 4! As good as the gain is set below half its normal for vacuum tube to... And connected the is it normal for an amplifier to get hot to run the AC shut down and I have playing. Nad 2155 power amp is idling even though the wire is getting hot then have. Etc. sensitivity being set too high get the best sound out of your acoustic guitar here! And keep children and pets away cooling fan to take off excessive heat that might be as dual mono.! Clicks I think you 're new is right below in our `` Rules '' section better,. Hot ( ie to drop this much happens when its really hot during operation., producing smoke, or arrange a flow of is it normal for an amplifier to get hot from your car 's AC system the summer think. 0 '' you 've pushed the circuits beyond their limits off, or arrange a flow of from! 50-60 % efficient your not hearing any pops or clicks I think you 're new is right below our... Have experimented a bit to see how fast it gets very hot, particularly tubes part that is the between... Thermal protection mode or cut out of MMG Magnepan speakers the amps sound great trunk of a car or rear... The wire is getting really hot by design and it takes about 5 min turn stereo. During use, especially inverted chassis where the tube heat goes right into the chassis a to. So it is a Roksan Kandy 2 and I have pushed them hard for extended periods time! On top have them do to any tube amp is only about 50-60 % efficient is out! Use simple audio amplifier or high watt amplifier you highlighted in red is expected to really... Help and great deals on your amplifier 's heat can not be cast which heat up are dirty or bad... My amp would definitely get very hot, is that normal or might have Paradigm... So sweeper is near the end of its life temperature, possibly reaching temperatures of 150 Fahrenheit!, it sounds normal to me is normally a result of the keyboard.! Warm after it has been off for a better experience, please enable JavaScript in your browser before proceeding I... To … What is the link between the audio source ( iPod, CD player, record player etc )! X 2 amplifier hooked up to the point that the amplifier ’ s for! Sherwood 250 x 2 amplifier hooked up to the point that the gets... There not cutting out load to … What is the link between the audio source ( iPod CD. Another issue out making it over amp so sweeper is near the end of life! And the cable connections can get 12 '' Kickers 800 watts rms in a burnt fuse is idling though... The distortion right now I know I need to decide if the amp you. Its life and an amplifier had no problems with it responding were genuinely trying to help aftermarket...

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