Is this upgrade worth it?

Thanks for allyour replies,I'm not to sure on this upgrade either.Is it really an upgrade,the big thing for me, is it going to sound BETTER??.I think i need more power(current)and maybe thats why i'm thinking of this.It seems like the electrocompanient's don't give me the volume that i would like sometimes.They sound great, but when i turn it up they seem to get drained.Almost like a soft clipping noise.My speakers(Artemis EOS sig/large bass module) can play very loud and I would love get full potential from these speakers.

Hmmm, from yr Electros' spec'd ~220W/8ohm, 1kHz, medium damping you'd be going to ~300W/8ohm, 1kHz, low damping with the MLs. Not much of a power/energy difference, I'm afraid.

Have you ever tried a very powerful amp on these spkrs -- just to compare & contrast "ease of drive" etc. Say a big Crown pro amp -- on loan of course??
I strongly suggest you try this, just to confirm it's the energy that's lacking (or not, as it were).

buy a Pass X350.5 for the same money. a friend sold his 333 for X350.5 and he is a MUCH MUCH happier man now.

Would your friend allow you to hear it in your system?

No i havent tried any hi-current amp's on the speakers,but would love to. .What could make the sound just conk out when it's played a little louder?