Hi,

I am refering here to fundamental principles of operation, as to what analysed, namely how the different woofers work together. Anyone interrested is best off consulting the Patent.

What you are refering to is actually called imaging/soundstaging in the Englishspeaking areas, not directionality or directivity, which is a technical term analog to the german "buendelungsmass". Imaging is mainly (but not solely) driven by higher frequencies than the low bass.

I am not at all disputing that the Nestorovic system makes fine sound. I merely felt the need to correct SM on some serious illogic and technically inaccurate statements.

Past that, room modes and their excitation, speaker placement etc. is far from an exact science. However, the remarks you cited about the Gentleman who prefers the TWR point, to me at least, strongly towards a room mode issue.

One is not allways conciously aware of the effects of room modes, they become annoyingly audible usually if one actually hears the same system with them reduced/removed or the same music on a system one finds generally agreeable but in which they are absent, the effect more often that not is not so much a "dragging" or overly resonant bass, but (due to a process known as masking) an aparent suppression of certain lower midrange sounds.

You can easily try this by working out the room modes your system excites and by equalising them out and comparing. You may find that a cheap and cheerfull equaliser damages the sound in other areas more than you are willing to accept, a good methode of comparison is to use a copy of the same CD pre-processed on the PC adjusting only the room modes using high quality, mastering grade EQ Software, this allows an easy and highly effective comparison.

Ciao T