HELP! Calculate Power. TINY SPEAKERS!!

[vahakn]

Hello

I and building a project in which I would like to chain up an 8 channel system, using these tiny Nokia N95 speakers:

N SERIES SPEAKER PHOTO

these dont seem to have a data sheet and I would like to find out their power consumption / wattage / rating so I can work out how to drive them.

I have run 1 on the headphone output of my laptop, but signal is pretty distorted.
I need to boost gain way up and i have heard the original mobile phone play pretty loud.

I would like to have 8 chains of 10 speakers.
meaning I need 8 mono amps or 4 stereo amps

they can also be seen here:

here:

I am also trying to work out what would be the best shape horn / sound box for these little drivers

please let me know if you can help

thanks!