01-09-2013 11:57 AM
01-09-2013 01:11 PM
01-17-2013 10:32 PM
I don't think they're that efficient. I have a set that I will be using as the FOH Friday night. It's a small club and we're running 6 vocals, kick drum, and trombone through it. They're clean and get solidly about 120 dbc. (Don't think we usually run them that hard. We're probably running closer to 112 db.)
01-18-2013 06:38 AM
01-18-2013 06:55 AM
At a basic level.... it takes twice the wattage to make a speaker produce 3dB more sound.
So you want to look at the speaker sensitivity rating (usually rated at 1w @ 1m), and then apply (again, basic principle) how many watts the amplifier can provide to the speaker.
Let's say you have a speaker that's extremely efficient and can produce 100dB : 1w@1m
So doubling the wattage to 2w, means it would produce 103dB
doubling again to 4w = 106dB
doubling again to 8w = 109dB
doubling again to 16w= 112dB
and so on....
Great tool for calculating "realistic" SPL figures for speakers.
enter 3.28 for the feet (roughly 1m)