The talk will be devoted to the description of the
resonances generated by a large sample of random material. In
one dimension, one obtains a very precise description for the
resonances that directly related to the description fo the
eigenvlues and localization centers for the full random
model. In higher dimension, below a region of localization in
the spectrum for the full random model, one computes the
asymptotic density of resonances in some sub exponentially
small strip below the real axis. This talk is partially based
joint work with M. Vogel.