Read this reply to a question:Is 70watts ok to drive my speakers.( American av site.)
Is it acurate?
If you ever reach more than 30 watts I'll be shocked
They are very efficient at 90db at 1 watt.
So, 70 watts...
1=90db
2=93db
4=96db(already to "tv watching" volume)
8=99db (THX reference volume for watching movies)
16=102 (starting to get painful)
32=105 (hearing damage)
64=108 (perm hearing damage)
Reduce the DB by 3db for every meter beyond the first one.
So at 2 meters away...
1=87
8=96
at 3 meters
1=84db
8=93
Not exact on the numbers as the room greatly affects the volume of sound.
Give you a rough idea. Lets say you are listening from the next room (kitchen while these are in the living room...eh, in my home is roughly 5 meters) and you still need to hear your cell phone. You probably are using somewhere along 8watts, so you won't drown out your cell phone ring tone. And even then, at 5 meters pushing 8 watts, you'll still hit the mute button.
Is it acurate?
If you ever reach more than 30 watts I'll be shocked
They are very efficient at 90db at 1 watt.
So, 70 watts...
1=90db
2=93db
4=96db(already to "tv watching" volume)
8=99db (THX reference volume for watching movies)
16=102 (starting to get painful)
32=105 (hearing damage)
64=108 (perm hearing damage)
Reduce the DB by 3db for every meter beyond the first one.
So at 2 meters away...
1=87
8=96
at 3 meters
1=84db
8=93
Not exact on the numbers as the room greatly affects the volume of sound.
Give you a rough idea. Lets say you are listening from the next room (kitchen while these are in the living room...eh, in my home is roughly 5 meters) and you still need to hear your cell phone. You probably are using somewhere along 8watts, so you won't drown out your cell phone ring tone. And even then, at 5 meters pushing 8 watts, you'll still hit the mute button.