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Old 12-02-2017, 04:43 PM
 
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I have an HP Pavillion desktop with some 70watt, Blackweb speakers. How many more watts can I go up to with a stock computer? I mention Blackweb because that's what they have at Wallmart. They had some 150watt speakers, and I'm wonder if these will work, or can I go even higher?
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Old 12-02-2017, 04:47 PM
 
Location: Vallejo
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As much as you want. They're externally powered.
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Old 12-02-2017, 05:40 PM
 
1,450 posts, read 1,093,451 times
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Quote:
Originally Posted by Malloric View Post
As much as you want. They're externally powered.

This is good to know. If I got the 150w speakers, would they be twice as loud? (Forgive my ignorance, but I'm not much of a computer person.)
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Old 12-02-2017, 08:23 PM
 
Location: Vallejo
14,512 posts, read 16,536,277 times
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Yes, kind of.

Human ears don't work linearly though. Doubling the watts is roughly 3 more decibels which is double the loudness but you won't perceive it as twice as loud, maybe 25% louder assuming equal quality speakers that can handle the watts without being damaged or distorting. Most of the those extra watts will go toward the subwoofer generally rather than everything being doubled so you'll get more thump thump but not much more mids or highs.

It's not really relevant though, even among a given manufacturer. It's just the peak power at a specific frequency and generally for a single channel. A 2.1 system has three channels (2x speakers and 1x sub). Without knowing the per channel output over a reasonable frequency range, it's just a marketing gimmick that doesn't tell you anything. Distortion and signal to noise ratio are more important anyway. More loud is useless if it is achieved by having using a crappy amp with high THD (distortion) unless you just want a loud noise and don't care that it's so distorted at even a fraction of its maximum rated watts that you can't even tell what you're hearing.

Then you need to look at the speakers and what their sensitivity is which has just as much impact. A speaker with 88 dB sensitivity will require ten times as many watts to sound as loud as a speaker with 98 dB sensitivity. In other words if you replaced what are probably fairly low sensitivity speakers that came with what you have with some high quality, sensitive speakers you could make much more loudness. It might not sound good (amp probably has a lot of distortion) but it would make more loud.
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