Thanks, John (Roxy54). The technical aspects of speaker and driver design are not a forte of mine. But I believe you are correct that a spaced dual woofer configuration will tend to help with respect to room modes. However I suspect that in the case of your speakers the main reason for the less than expected deep bass extension is that the woofers, which apparently were designed and manufactured by Klipsch, together with the overall design of the speaker, were such that deep bass extension was sacrificed to some degree in order to make possible enough sensitivity at low frequencies to support the very high sensitivity of the horn-loaded high frequency driver. As you may be aware, deep bass extension, sensitivity, and also compactness of cabinet size, trade off against one another in the design of a speaker. And I note that your speakers have a specified sensitivity of 102 db, compared with the already high 95 db of the Pendragon.
Regarding Stereo5's experience with the Pendragon, like Shakey I'm somewhat baffled, but my guess is that a key factor is that the speaker was presumably designed with the expectation that its bass would be reinforced by the acoustical effects of typical placement in typical rooms, and of course his 40 x 50 foot room is decidedly atypical.
Best regards,
-- Al
Regarding Stereo5's experience with the Pendragon, like Shakey I'm somewhat baffled, but my guess is that a key factor is that the speaker was presumably designed with the expectation that its bass would be reinforced by the acoustical effects of typical placement in typical rooms, and of course his 40 x 50 foot room is decidedly atypical.
Best regards,
-- Al