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RE: Danny Richie of GR Research VS Magnepan

Where dipoles exhibit cancellation is at either side of the loudspeaker/sub. The back wave meeting the front wave CAN create out-of-phase cancellation, but also in-phase reinforcement. That is true for all dipoles. It is a function of frequency and the distance of the dipole from the wall behind it, so designing in a "bass hump" to combat that phenomenon is not possible unless a mandatory dipole/wall distance is specified by the designer.

And you know, Danny Richie designs dipole loudspeakers and subs (though not in a manner that satisfies Davey---see above), and is well aware of all the above. DR has not found the skewed bass response exhibited by the MG1.6 and 1.7 in other dipoles he has tested (not to mention designed).

Edits: 01/02/21

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