Electric power in TriAmp amplifier

[lukaszb]

Welcome and sorry for my english,

I have a problem - I need to come to a reasonable formula, which will allow me to calculate required electrical power from amplifier to outputs in active three-way column.

For example, we have standard 3-way column that have power 100W/8 ohm. I wonder how to calculate required electrical power for separated outputs for each speaker.

One is certain - woofer needs 100W, but how about middle and tweeter? Maybe correlation with the efficiency of the speakers?

Anyone have any idea or stumbled on the relevant materials?

Thanks for any answers.

 

[bogdan2011]

The correlation is between the crossover frequency and power.
Check out this article: BiAmp (Bi-Amplification - Not Quite Magic, But Close) - Part 1
There's a table in there that shows power distribution according to the crossover frequency, although it treats the mid and high speakers as a whole with passive crossovers.

 

[sreten]

Hi,

The mid and treble will need less power if you remove attenuation to them.

rgds, sreten.

 

[lukaszb]

The correlation is between the crossover frequency and power.
Check out this article: BiAmp (Bi-Amplification - Not Quite Magic, But Close) - Part 1
There's a table in there that shows power distribution according to the crossover frequency, although it treats the mid and high speakers as a whole with passive crossovers.

Thank you - this site is very, very useful for me. In part 2 is also some information about TriAmp.