Computer Speakers Watts

Dell computer / UNSURE
Crystal January 26, 2009 at 08:57:37
Specs: Windows XP, Unsure
Hello, I am trying to purchase a set of computer speakers as a gift, and am hoping someone can tell me if 80 Watt RMS computer Speakers would be enough to watch movies on. Are these loud enough for a group setting?
Thank you!

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#1
January 26, 2009 at 12:41:27
Speaker wattage rating is the maximum the speakers can handle without damage being caused.
The loudness of the speaker output is determined by how much the amplifier driving the speakers can deliver to the speakers.

I would think that an 80 watt amplifier driving 80 watt speakers should be enough for the average room.

FWIW to XP users: When you click on the 'Command Prompt' you are just causing the 'Command prompt' to be displayed. This prompt gives you access to NTVDM.EXE, the 'NT Virtual DOS Manager'.


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#2
January 26, 2009 at 13:38:20
If you are talking about powered speakers like Logitech or similar 2 or 2.1 system then it's enough for a normal sized room.
However if you are taling about a 5.1 system then we have a different equasion.
The base speaker would take about 30 watts leaving 10 watts each for the other 5 speakers.
While this may be enough for normal use, in situations where you have a group of people with the associated background noise of talking/laughing air conditioners running, it may well come up short.
Keep in mind no amplifier should ever be turned up to maximum, never turn it up beyond it's distortion point as this is likely to damage the speakers and or the amplifier. Heavy base adds to the problem.

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#3
January 26, 2009 at 14:33:36
Going off topic, I've often found myself puzzled about the wattages that are quoted these days.

In the days before stereo I built myself a 3 Watt valve (tube) amplifier driving a single speaker in a large corner encloser. With this running in an average room I could turn up the wick and drive people away. Here's the amp (bottom picture):
http://www.vintageradio.me.uk/ampli...

My questions is, has the unit of a Watt changed in some way over the years, have folk gone deaf, or is there some other explanantion for figures like 80W? I realise one has to cope with transient high peaks but the disparity
in wattages still seems huge.

some other bloke...


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Related Solutions

#4
January 26, 2009 at 16:40:51
"Are these loud enough for a group setting"? Does this mean you are sending the video to a TV? Are you aware that you can send the audio from your computer to a receiver or TV and listen that way too. I use a receiver to fill a 2000 SqFt. basement with sound. Just use line out to line in on the receiver. Stereos usually have decent speakers and you may already have them.

Going back to your original question you aren't clear if you are asking about powered speakers, which have a built-in amp, or simply referring to the rating on some stand alone speakers. If the latter then forget about that. The output of a typical sound card won't drive any speakers very hard.


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#5
January 26, 2009 at 17:29:04
To answer Derek.
No wattage measurements have not changed, but amplifier and speaker design have.
The speakers were larger and therfore pushed out more air, but higher voltage was required and transformers were used to drive the speakers.
Typically speakers at that time had an impence of 16 ohms, typically 8 inch or larger were used and 12 inch quite common.
If you were to use 8 ohms instead of 16 the output wattage would double. So 3w would be 6w but could effect the quality slightly, using 4 ohms as most of todays speakers do could increse the output to 12 watts at the risk of blowing your amp and would sound like crap.
You can not compare a 1952 6 cyl. Chev (one of my old cars) with a 2008 6 cyl from the same company. Same applies to amplifiers.

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#6
January 26, 2009 at 17:40:00
anmor

Thank you for your well written, concise and competent explanation.
It all makes good technical sense and, for once, leaves me speechless.

They were happy days tho LOL - apologies for interrupting this thread.

some other bloke...


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#7
January 27, 2009 at 12:18:15
hi Crystal

80 watt is fine but for movies id go for at least a 4.1 system , with a decent size sub woofer most action movies have a heavy bass which these 2.1 mini speakers dont replicate very well


(& sry butting in on a post)
Derek re: Happy days
valve amp systems are/ have made a come back!

http://cgi.ebay.co.uk/LATEST-2006-E...


must be the warm glow, ive seen simlar for sale & interesting points were made about differences in valve(sound) vs modern equivalents, 'was that my imagination but it did sound good'.

bit big for a desk top,
(but if i had the money)

:)


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#8
January 27, 2009 at 12:54:26
1stepbeyond

I just wonder what worries me the most:

1. Knowing all those old valve (tube) numbers.

2. Not being able to remember what I had for breakfast.

some other bloke...


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#9
January 27, 2009 at 20:16:03
Derek I'm with you while I can remember the old valves, I can't remember yesterday, I can remember breakfast, that's easy I have toast and coffee everyday.

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