Hi Marco,
To add, while on Roosevelt Ave, stop by at the Definitive Audio. They have one good room in the back with Wilson Maxx2 that Mike Fremer wrote about but didn't like...: http://www.stereophile.com/solidpoweramps/1205mf/index1.html
Howard can find Mac amps at the Magnolia as well.
Ki
To add, while on Roosevelt Ave, stop by at the Definitive Audio. They have one good room in the back with Wilson Maxx2 that Mike Fremer wrote about but didn't like...: http://www.stereophile.com/solidpoweramps/1205mf/index1.html
Howard can find Mac amps at the Magnolia as well.
Ki