Determining exact power being sent to your speaker


How does one go about determining the exact amount of power being delivered by the amplifier to the speakers? Let's say the amp delivers 160w/channel at 4ohms (or so the reading materials state anyway) but yet the speaker specs show 120w maximum. My current integrated amp shows the volume
attenuation (dB units) in .5db steps ranging from -100 (min) up to 0.0 (max).

All that said, the concern is when should I be concerned about pushing too much power to the speakers and how I can determine the "Don't turn it up past this number on the display or you will damage the speakers..."
vineman55
Vineman55, average music power delivered to speakers is only few percent of peak power (unless you listen to sinewaves) It is because average loudness you listen to (half of peak loudness) requires only 1/10 of peak power. In addition music has gaps. I would be more concerned with damage to tweeter caused by clipping when amplifier is too weak. Clipping produces a lot high frequency energy (harmonics) that might burn out tweeter.
Thanks for the responses...sounds like I am good to turn it up a bit more than in the past which is good because I was starting to think I might need to get some new speakers...(*grin)
Have you ever owned an amplifier with meters? Chances are you are using a lot less power than you think.

use 12v lamp car brake to save tweeter ,, paraleling if you want more power 

What rrog said. I started a thread about that exact same thing with an old Realistic power meter and was so surprised I was only using a watt or two listening at a decent volume.