As Mr Dallas wrote (...I wonder how my 805Ns from 1999 would measure on Amir's Klippel...), similarly, as a
very long time owner of the B&W 801 S2 (w/S3 x-over mod), I've searched for spinorama data for the 801 S2 and/or S3 but have found nothing. Has anyone found or generated any such data since the Stereophile review of the 801-II in Dec 3, 1995?
Fig.4 B&W Matrix 801, anechoic response on tweeter axis at 50", averaged across 30 degrees horizontal window and corrected for microphone response, with the nearfield woofer and port responses plotted below 1kHz and 600Hz, respectively.
It seems there are many references to the B&W of old and such a venerable design for it's time, yet no one has acquired a full(er) data set on this grail (holy or otherwise)?