Why some IRs are so much loud?

[GuttaLaser]

D/loaded the Orange cabs IRs from here (think all of you know what I'm talking about) and yes... great cab and great IR... but... I think that the thing about it's wow-effect is that that damn IR sound f**ing louder of the average of ALL the other IRs (inside and outside the AxEFx). Is the loudest That I know!!! Many presets are clipping with that IR!
So... my question is: what is the x-facto that make an IR sounding loud?
Maybe some post-processing/mastering tricks (comp... maximizer... something liek that)?
TNX

 

[RDH]

should be able to load it in the ax o matic app from ownhammers site and select normalize, save it and should be the same volume as the others!

 

[GuttaLaser]

Tnx for the reply... I'll try this... but for me is anyway easy to tame down the internal gain structure!
My question is: why and how an IR sound louder than another?
In other words... my idea is that an IR is a kind of EQ curve/filter ... so how this can add so much volume to the sound?
(i know that if some frequecies are rised you can "ear" more volume... but the difference here is huge)