Question:
Can I use speakers that are 110 watts on a 80 watts per channel receiver?
David
2013-03-15 12:59:06 UTC
How many Ohms do the speakers have to be?
my receivers spec are
80 watts of continous power per channel at 8 ohms
front(stereo) 80 W + 80 W
power output 140 W per channel
guaranteed speaker impedance 6 ohms to 16 ohms
what does this mean? can i connect the 110 watt speakers
Four answers:
Maniac
2013-03-15 13:18:45 UTC
I just answered your previous question. Assuming your speakers have an impedance between 6 and 16 ohms you can use them. It wouldn't matter if they were rated 10 watts or 100 million watts, only the impedance matters. If you connect speakers having an impedance less than 6 ohms you're receiver will run hot and possibly trigger over current protection circuits or possibly damage itself if it doesn't have such protection circuits. I'm sure you have heard the term "dead short" and understood that in electronics this is a bad thing. I'm sure you have also heard the term "open circuit". Well, a speaker with an impedance of zero ohms would be a dead short and a speaker having an impedance less than 6 ohms is too close to being a dead short for your receivers liking. Likewise a speaker having an impedance of 16 ohms is too close to being an open circuit for your receivers liking. Your speaker couldn't care less what your speakers power rating is and most speakers are damaged by distortion, not clean power so as long as you don't crank the bass up and run the volume too high you shouldn't damage any speaker connected. If however you abuse your system, crank the bass and run the volume at max you will likely damage any speaker connected no matter what the speaker power rating is.



You get a lot of wrong answers on Yahoo about speaker power ratings like the silly 80% rule. Simply wrong!



mk
Grumpy Mac
2013-03-15 20:10:53 UTC
You will be fine.



You should pretty much IGNORE speaker power ratings. Normal speakers (not computer speakers or speakers from a crappy box system) are all compatible with most AV Receivers. The power numbers are UPPER LIMITS so are not much use.



Here is a fact: Over the course of a movie - each speaker receives on average 3-15 watts.



Thats it.



So why do we have amps that output 80+ watts and speakers in the 100-200 watt upper limits?



There is a law of physics: To increase the volume by 1 db - you must double the power.



So you need amps in the 100 watt range and speakers in the 100-200 watt upper limit range to handle volume swings.



Hope this helps.
AL M
2013-03-15 16:14:35 UTC
The impedance is very important. It must be within close to the specification.



If the speakers are within this range 110 watts 6, 8 or 16 ohms, then it is ok.



So your speakers could actually handle more power than the receiver can put out, and this is OK.

If your speakers are rated lower than 80 watts, then I'll be worried, they can blow up (ruined) if you put more power than it can handle.
2016-08-09 13:25:34 UTC
Each the other solutions are just right, I just thought i would add that more injury is done to speakers by using an amp that is too weak, considering that when you crank it up full and it can not energy the audio system, the sign distorts, that is referred to as clipping and it could harm audio system. That you could of path blow audio system by using utilizing an amp that's approach too robust, but as a normal rule, if the amp is twice the wattage ranking of the audio system, that is just right because which you can run the amp below 1/2 volume, so it does not get very sizzling.


This content was originally posted on Y! Answers, a Q&A website that shut down in 2021.
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