Zum nachschlagen bin ich gerade zu faul. Das sind aber auch absolute Basics. Kannst ja gerne mal per REW messen und dir den Phasengang bei dein Moden anschauen.
Minimalphasige Systeme sind invertierbar. Raummoden sind zumindest als Peak minimalphasig und somit korrigiert man sie mit einem minimalphasigen EQ in der Phase und Amplitude.
Edit
https://www.roomeqwizard.com/help/help_ ... phase.html
Auf die Schnelle:
Minimum phase systems can be inverted, which means that a filter can be designed that, if applied to the system, would produce a flat response and correct the phase response at the same time. That is clearly a nice property to find if we want to apply EQ. If we apply EQ to a system that is not minimum phase, or more particularly in a region where it is not minimum phase, the EQ will not produce the results we would like. It may still be possible to achieve a flat response, but correcting the phase response would elude us. It is simply not possible.
