  We present a simple model in which a brane with anisotropic metric is
embedded in an AdS bulk. We discuss the localization of the massless mode and
the amplification of both the massless and the massive modes on the branes,
paying particular attention to the normalization of the perturbed action and to
the evaluation of the effective coupling constant that controls the amplitude
of the spectrum. In the model under investigation there is no mass gap between
massless and massive modes, and the massive modes can be amplified, with
mass-dependent amplitudes.
