DCM Time Window 7 - AMP & PREAMP

Okey all this is very good stuff...learning more than I had bargained for. So mg next question is : what is this DB rating that speakers come With. What am I being told that a speaker with 92 DB is better than a speaker with 87db?

What am I being told that a speaker with 92 DB is better than a speaker with 87db?

Not necessarily better, jut easier to drive to a volume level.

For example, a 87 db (at 1 watt, 1 meter) speaker can reach the volume you want with a 200 watt amp.

If you have a 90 db ( at 1 watt, 1 meter) speaker, it should reach that same volume level you want, needing only 100 (half) watts.

If you have a 93 db ( at 1 watt, 1 meter) speaker, it should
only need 50 watts to reach that same volume level again.

So, if these speakers were 100% identical in every way, including sound, looks, size, etc, I guess you could say the one with the higher rating can be better, since it needs less power, if everything else is equal. The all else being equal, usually doesn't happen. This just helps you find a speaker that can play louder for a given amount of power.

This Wikipedia link may help more. [http://en.wikipedia.org/wiki/Loudspeaker#Efficiency_vs._sensitivity]

Try the link again here.

I don't know the 7's but my brother got one of the earlier models which sounded very good with a Hafler amp. ...just guessing, I suspect that your speakers are better than the electronics you're driving them with. I was never fond of Carver's amps....

Thanks Hifihvn ...very cool and informative stuff :-)

Everyone have a Merry Christmas