Middletown CT, just far enough from the magnetic north pole so that even a Berning amp wouldn't be affected :)
P.S. to all, I just got an email response from David himself on this question. Very nice guy. He has heard a pair of Nautilus 801's driven by a Siegfried (a mis-match made in heaven?!) He said, "they filled a large room with just 10 watts. Siegfried did run out of gas on an opera recording, but handled everyting else with surprising ease." He predicted the ZH270's far greater dynamics would play the 803's very well.
P.S. to all, I just got an email response from David himself on this question. Very nice guy. He has heard a pair of Nautilus 801's driven by a Siegfried (a mis-match made in heaven?!) He said, "they filled a large room with just 10 watts. Siegfried did run out of gas on an opera recording, but handled everyting else with surprising ease." He predicted the ZH270's far greater dynamics would play the 803's very well.