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True facts about ohms - Page 3

post #21 of 44
Thread Starter 
Well the lamp is suppose to go out if there is too much power into the speakers so the drivers won't blow.
post #22 of 44
The only reason why your speakers would blow is because Justin Bieber high frequency notes are distorting the signal. lol Cute poster.
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post #23 of 44
Quote:
Originally Posted by Dustin_Broke View Post
Well all I know if they when I have it loud the receiver does kinda get hot but nothin happens. Also it's true that I can tell that my Sony receiver is capeable of blowing my speakers since just having it half way is almost getting close to blowing it since the SK3 lamp starts to light up any higher than 50%. Basicly as I said my speakers have a sonic guard protection and uses a lamp that is kinda like a fuse and when you put too much power into the speakers it will start to light up when the bass hits and if I keep turning it more and more I know the lamp will blow and no sound will come out of the speakers unless I replace the SK3 lamp.


But I do want to know why does the receiver get kinda hot when I have it loud even it's a small 4 ohms speakers? Well it's a 5.25" 2-way speaker system. But if you measure the moving parts only then it's 4in woofers.


Btw my receiver doesn't have a Ohms selector swich it says 8-16 ohms. I was thinking to get a used Kenwood receiver that has a ohms switch but do you think I need to get that? I can get it for around $55 with shipping on Ebay? Someone is selling one that has a switch. Basicly the Kenwood receiver has 8 ohms or more, less than 8 ohms. So I can select one of them accoding to the speakers I have.
It's absolutely normal for a receiver to become warm, my older amp gets toasty without anything even playing. And like greg said, those speakers should be absolutely no problem - I would worry about harming them rather than the receiver. Don't go out and get another receiver, I don't see any need for that.

Quote:
Originally Posted by giganews35 View Post
The only reason why your speakers would blow is because Justin Bieber high frequency notes are distorting the signal. lol Cute poster.
Good eye
post #24 of 44
Quote:
Originally Posted by Dustin_Broke View Post
Here is a pic of the receiver and part of my computer desk where you can see my JBL Control 1 speakers are. You can see that I have my speakers on top of the desk and the receiver will have enough air since it's on top of the CD player and isn't in a small area closed up. The top part is were it gets hot other places don't get as hot since hot air goes up.

The right speaker is on the right side of the desk and you can't see it on the pic. On the lower right corner of the pic you can see part of my Sony notebook computer.
OK I'm going to assume that that JBL speaker is 4ohm and your Sony Receiver is 8ohm. If correct, hook it up and don't play it to distortion you will be fine forever.

Now if you are hooking up a pair of 12" subs that are rated at half the ohm load and use a ton of power, then you might tax the amp a bit. The Sony, if it gets hot, should just shut down without damage. But a pair of those JBL's will never hurt that Sony Receiver. Never. Just remember... Distortion is bad.
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post #25 of 44
Quote:
Originally Posted by Brittain View Post
OK I'm going to assume that that JBL speaker is 4ohm and your Sony Receiver is 8ohm. If correct, hook it up and don't play it to distortion you will be fine forever.

Now if you are hooking up a pair of 12" subs that are rated at half the ohm load and use a ton of power, then you might tax the amp a bit. The Sony, if it gets hot, should just shut down without damage. But a pair of those JBL's will never hurt that Sony Receiver. Never. Just remember... Distortion is bad.
***Amps get hot. Don't worry about it.***
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post #26 of 44
Dustin I believe very strongly that it is too soon for you to use the word Audiophile...
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post #27 of 44
Quote:
Originally Posted by Dustin_Broke View Post
I hear so many stories about this but I need to know the true facts about if it is perfectly fine to connect just one pair of 4 ohms speakers to a 8 ohms stereo receiver. Are there alot of people here have done it and has no problems at all?
Ohm ratings won't tell you much at all. An "ohm" is a dc resistance measurement, but what is being ignored is the ac impedance measurement (mho or siemen). The impedance varies with frequency, so your speaker impedance will bounce all over the place when you're playing music, so focusing on the 4 ohm rating is pointless. Bottom line, some speakers place a very difficult load onto an amplifier due to the crossover network, so it's impossible to know if your amp can handle it without trial. Years ago, a Linn 80w amplifier was considered one of the finest in the world and could power ANY loudspeaker, but a Pioneer 400w would shut down when faced with the identical load
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post #28 of 44
Thread Starter 
The JBL Control 1Xtreme is basicly the same speakers but just has a crossover designed for most receivers since it's 8 ohms. They did put titanium-laminated dome tweeters instead of just plan polycarbonate dome tweeters and because of that they made the crossover down to 4000hz instead of 6000hz like the one I have. The woofers are made the same and the cabinet also. But I think since the Control 1Xtreme is 8 ohms they made the sensativity 89db instead os 87db since 8 ohms speakers aren't as loud as 4 ohms. I noticed that 4 ohms speakers don't need to have the volume turned up as loud as 8 ohms speakers but if the sensativity is 89db then it will make it loud as a 4 ohms that is a 87db.



I decided to do this. What I' am going to do is sell my JBL Control 1 speakers that are 4 ohms and get the JBL Control 1Xtreme since that speaker is 8 ohms and then I will have no more worries about ohms. I do really like the sound of the Control monitor speakers but just was worried that I would damage my nice Sony receiver because of it. I did but a used and execelent condition pair of the Control 1Xteme. As I said both speakers are the same but just one is 8 ohms and other is 4 ohms and one has titanium and one has polycarbonate tweeters.


Then in the future since most receiver are 8 ohms or higher I won't have to worry about ohms anymore.
post #29 of 44
Thread Starter 
The reason I call myself audiophile since I' am very picky on sound and want to hear music the way I want it to sound so I go through alot of speakers. I am usualy more into studio monitors like the Control 1 but I' am also in a budget so can't afford those real high end monitors. I' was into speakers since I was little like around 8 or so but when I was like 15 I started to little by little learn about speakers. My dad told me about speakers too since his a musician and his a pro drumer. He has been to alot of recording studios and did alot of recording also. But today I' am still learning about audio and stuff.
post #30 of 44
Quote:
Originally Posted by Brittain View Post
Dustin I believe very strongly that it is too soon for you to use the word Audiophile...
^This

As for your current set up with those speakers and that amp combo you should be good as long as your not trying to shake the walls and you are conscience of your peaks and square wave's from your source.
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