Hi Rick, that's great information. My concerns about preamp overload should have been expressed more widely in scope since I also worry about any other connected gear such as FM tuners, etc., but I need to pass along that with 2 recent ATSC tuner purchases (one set top box and a pc card from different companies) they both adamantly warned about damage to the units from overly high signal input. Neither of them specified whether this was more specifically a signal strength, line voltage, or other issue, so I'll make some inquiries. My LG ATSC Tuner came with a direct warning to use attenuators at first, so I infer from that warning that it is about raw dB signal strength. Anyone have some thoughts or info on this?