The MTM section of the OB-5 uses the same drivers as does the N3S. Has anyone heard the OB-5 and N3S side by side? If a listener could mentally tune-out the bass from the extra woofers of the OB-5, would a comparison of the two produce just what one would expect---the OB-5's MTM, from being boxless, sounds more open than the N3S, and everything else (tonal balance, transparency, imaging, etc.) is very similar?