Speaker db rating?


Does anyone knowthe ratio of a speakers db rating, 1 db at 1 meter,relitive to amplifier watts to power them well enough to be loud enough in a small room.
Example:what kind of db rating would one look for if a 8 watt amplifier was used?
How does each point,as the rating increases,affect the wattage needed to drive the speaker.
Thanks
G.H.
groundhog

Showing 4 responses by rodman99999

Groundhog- Refer to the websites cited for the facts. Also: Remember that tube amps always provide more listenable volume than their rated wattage will indicate. Happy shopping and listening.
Groundhog- Read this before you get too confused between amplifier output power, SPL and perceived loudness levels: (http://www.audioholics.com/education/frequently-asked-questions/relationship-between-watts-and-dbs) You'll notice that it actually takes 10 times the amplifier power to produce an SPL that SOUNDS twice as loud to our ears. That is an important factor to consider with your goals.
This site is a bit more in depth in it's presentation of the facts: (http://www.analogrules.com/dbwatts.html) The tool that Hemihorn posted takes these factors into consideration.