I hunted down the SIR convolution engine mentioned in one of the recent threads on this Forum (because it is apparently more efficient than accoustic mirror).
On the site I also followed the links to sites offering free impulse responses.
I was astonished to find collections of IRs of premier league Reverb Units ... including Lexicons, TC Electronics and Sony.
So we\'ve had many debates about software and library piracy (and I don\'t for an instant want to re-start those) .... BUT I\'m guessing there are no laws YET about making IRs of hardware equipment, but certainly feel it is morally questionable. If I worked for Lexicon I would certainly feel pissed off at the thought of someone \"photocopying\" the \"essence\" of my reverb units.
I don\'t have enough expertise to comment on whether IR\'s of hardware devices are effective or offer the same degree of \"tweakability\" as real unit, but would probably guess they don\'t.