David,
I think if you wish to ensure you've just that extra bit of power, the 450mcx's should be sufficient for anything but the most extreme rooms and volumes (which would probably risk making you permanentenly deaf)
And for those who doubt that it can happen, i know some who wears 2 hearing aids now after an all-day concert-volume session with a pair of Alexandrias...he woke up the next day with very little hearing and it never came back...
I think if you wish to ensure you've just that extra bit of power, the 450mcx's should be sufficient for anything but the most extreme rooms and volumes (which would probably risk making you permanentenly deaf)
And for those who doubt that it can happen, i know some who wears 2 hearing aids now after an all-day concert-volume session with a pair of Alexandrias...he woke up the next day with very little hearing and it never came back...