At a residential job in Malibu, reconnecting an old (and I mean old) amp, turned some snowy screens into crystal clear ones. I know that doesn't help you, but the amplifiers are critical when you have that many TVs. I will be installing three at different jobs in the coming weeks. I hope we don't have problems. They are going to be connected to Time Warner and Charter cable systems, and they all need bi-directional because of pay-per-view and video-on-demand.