ITS NOT THE SAME
Another advance is the redesign of the crossover network, made possible by moving it into the S800's large cast aluminum base. While the other Nautilus speakers use film as well as film-bypassed electrolytic capacitors, and air-cored as well as iron-dust-cored inductors, the S800 uses film capacitors and air-core coils exclusively, even for the low-frequency bass filter. As someone who has spent time designing and tweaking crossovers, I can vouch for this seeming extravagance as a major contributor to excellent performance. In addition, S800's heavy base electrically isolates the crossover from the drivers, acts as a heatsink for the crossover, and, in concert with the downward-firing bass port, serves to precisely load the low-frequency enclosure.
Read more at http://www.stereophile.com/floorloudspeakers/600/index.html#jfsJGmfWWCZ7HAIF.99
Another advance is the redesign of the crossover network, made possible by moving it into the S800's large cast aluminum base. While the other Nautilus speakers use film as well as film-bypassed electrolytic capacitors, and air-cored as well as iron-dust-cored inductors, the S800 uses film capacitors and air-core coils exclusively, even for the low-frequency bass filter. As someone who has spent time designing and tweaking crossovers, I can vouch for this seeming extravagance as a major contributor to excellent performance. In addition, S800's heavy base electrically isolates the crossover from the drivers, acts as a heatsink for the crossover, and, in concert with the downward-firing bass port, serves to precisely load the low-frequency enclosure.
Read more at http://www.stereophile.com/floorloudspeakers/600/index.html#jfsJGmfWWCZ7HAIF.99