heavystarch, while it is true that room nodes are not as effectively energized
below the wavelength that is equal to or greater than the width of the mounting baffle of the driver due to progressive phase cancellation the dipole still radiates twice the energy into the room that a monpole does and some of it hits the walls near the speaker. These early reflections and the
generally higher ratio of reflected vs direct sound that reaches the listener
leads to more a amorphous image in the soundstage.
The room at frequencies above approximately 200hz is more strongly energized by the dipole because these frequencies are not as subject to cancellation due to the shorter wavelength involved. Unpredictable comb- filter effects also modify the frequency response of the dipole and this may also
contribute to the percieved problem.
As a former owner of a pair of MG3As I am very familiar with what
Lord_Magnepan is griping about.
The excellent information at the linkwitzlab site needs to be read by more people. It very throughly explains the problems encountered in trying to reproduce sub 200Hz frequencies in a typical listening room.
See link
http://www.linkwitzlab.com/rooms.htmSee also the link to the discussion of direct vs reverberant energy created in a room by a dipole radiator.
http://www.linkwitzlab.com/frontiers.htmIn particular read the section on Schroeder Frequency
There are tradeoffs involved in any speaker design and Lord_Magnepan
and I don't care for the ones that result from a dipolar design.
With higher resolution playback equipement it is now possible to recover the real ambient information that may exist on a recording rather relying
on the reverbrant field generated by a dipole speaker to fill in what used to go missing and unreproduced in the listening room. The dipole's past advantage in its ability to create a reverberant field has now turned into a liability because this same reverberant field now obscures information.
It was the realization that I was losing information to this effect that convinced me I needed to sell my "maggies" and try something different.
Scotty