Good evening
While playing with different crossover filters:
https://www.diyaudio.com/forums/multi-way/340978-vintage-style-sealed-enclosure-3-loudspeaker-dome-tweeters.html

ARTA-burst decay-"naked" loudspeaker

ARTA-carpet


ARTA-bathroom carpet


ARTA-couch cushion/pillow

And finally:

Holmimpulse-FR using 24db LR-filters
Looks like I now can, before room reflections/modes are kicking in, with this insulation, make reliable measurements down to 70 Hz in my living room.
Best regards and stay healthy
While playing with different crossover filters:

https://www.diyaudio.com/forums/multi-way/340978-vintage-style-sealed-enclosure-3-loudspeaker-dome-tweeters.html

ARTA-burst decay-"naked" loudspeaker

ARTA-carpet


ARTA-bathroom carpet


ARTA-couch cushion/pillow

And finally:

Holmimpulse-FR using 24db LR-filters
Looks like I now can, before room reflections/modes are kicking in, with this insulation, make reliable measurements down to 70 Hz in my living room.
Best regards and stay healthy