Audio Equipment and Home Theater Audio : Speakers and Stereo question

Speakers and Stereo question

I have speakers from a 100 watt stereo system. The stereo no longer works and I saw a reciever in the pawn shop but on the back it said 120 watts. Is it safe to connect the speakers to this reciever or will it damage them?

Re: Speakers and Stereo question

Speakers are rated for maximum power input while receivers are rated in maximum power output. Attaching 100 Watt speakers to a 120 Watt system won't damage the speakers as long as you don't turn up the volume too loud. This is all assuming that the speakers and the receiver both have the same Ohm rating as well.

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Re: Speakers and Stereo question

Cool. Thank You!

Re: Speakers and Stereo question

And just because those speakers came with a 100 watt stereo, doesn't mean they can only take 100 watts. Not that you'll probally ever deliver 120 watts to them anyway, Even in a transient response most speakers actually get less than 30 watts even for loud music, unless they are very inefficient.
Look them up and see what they'll take.

Acussed here of being a 12YO or an 8YO, as if either of those were bad things!

Re: Speakers and Stereo question

You'd have to watch the volume carefully to make sure you don't overdrive the speakers but for the most part, it's the load (the speaker drivers) that dictate how much power is being drawn from the amplifier.

If you're hearing considerable distortion in the speakers, cut back the volume and put a red electrical tape piece or something at a safe maximum volume (if it's a marked potentiometer with a start and stop point, not a continuously variable one with no markings).

I personally would match the speakers appropriately to a power source that's under the speaker's maximum power draw (at 8 ohms impedance)... but I spent a good deal on speakers. If I had a cheap old pair it probably wouldn't matter much to me except from a fidelity standpoint (i.e. to minimize distortion).

Nature abhors a moron. -H.L. Mencken

Re: Speakers and Stereo question

sometimes they write 1500wats . music peak wats i guess... it is better when the speaker has more power than amplifier!!!!!! if it is opposite, than please have a feeling for your bass speakers. when u hear the bump sound . reloaded speaker. turn off a bit volume ..

but your amplifier has 2 times 120 or 2 time 60? this new amplifiers what u can see in the one big waste of the time...

I do like unsolicited.

Re: Speakers and Stereo question

There are no practical power ratings for any speakers. It depends on the music you are playing. The power consumption of a woofer decreases with increasing frequency, due to the inductance of the voice coil.

...And the heat dissipation of a woofer increases with decreasing frequency, because the voice coil has a larger displacement at low frequencies which allows it to come in contact with more volume of air (fan effect).

If you have a multi way 100 watts system, the tweeter can blow out at a mere 5 watts if your music consists of mainly high frequencies.

So, its a very complicated thing to calculate the power rating of a speaker system. So instead of worrying much, just enjoy the music and buy a new set of speakers if & when anything goes wrong. But chances are minute.

Re: Speakers and Stereo question

What epibasu said. Just don't get drunk and turn the volume up high at a party. That's the best way to kill tweeters, since alcohol dulls your senses so you don't mind the distortion. If you do like very loud music and drinking (and at the same time), invest in a couple of "pro" speakers, like 15" + horn stage monitors. They generally have protection for the tweeters, and more realistic power ratings. Plus, they are much more efficient than normal home speakers (except maybe Cerwin-Vegas or Klipsches), so will get louder with the same amount of power.