Looking at B&W distortion specs:
DM601s3 2nd and 3rd order harmonics:
<1% 88 - 20kHz (90 dB spl, 1m)
Nautilus 804 2nd and 3rd order harmonics:
<1% 70 - 20kHz (90 dB, 1m)
<.5% 150 - 18 kHz
At ~1/10 the cost of N804, the 601s3 is a fantastic value looking at specs like these. Small cabinet has little resonance so don't need expensive curved cabinet of Nautilus. Even has the tweeter tube.
DM601s3 2nd and 3rd order harmonics:
<1% 88 - 20kHz (90 dB spl, 1m)
Nautilus 804 2nd and 3rd order harmonics:
<1% 70 - 20kHz (90 dB, 1m)
<.5% 150 - 18 kHz
At ~1/10 the cost of N804, the 601s3 is a fantastic value looking at specs like these. Small cabinet has little resonance so don't need expensive curved cabinet of Nautilus. Even has the tweeter tube.