So... No tweeters/midrange (at least not that I'm seeing)? Also, only four fasteners on a woofer? Maybe with an extremely heavy duty basket that would be ok, but... I'd choose more to be more secure with all that vibration. This is an impressive picture, but the sound is limited to whatever the youtube viewer has at the moment of the view, and limited by the microphone/processing of the recording, and also to the compression of UA-cam.
This is dual concentric driver from Tannoy, HPD385. The HF driver is at the center behind the acoustically transparent dust cap. Very early version of these when they switched from GOLD it came with the frame of 8 screw's. Latter Tannoy changed it to 4 screws.
@@2ChannelAudio I still worry that any dust cap would be at risk of distorting the treble. It's a moving solid, right in front of the tweeter. If centering the treble within the other frequencies, then maybe drop the dust cap. This is what was done on old (1960s maybe?) Pioneer speakers I have, although in that case, it was a "squawker" for midrange in the middle where the dust cap traditionally would be, fixed in place by the basket/magnet assembly. The tweeter was instead on a bar a bit off center in front of both attached to the outer perimeter, kinda like modern car speakers are with tweeters.
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So... No tweeters/midrange (at least not that I'm seeing)?
Also, only four fasteners on a woofer? Maybe with an extremely heavy duty basket that would be ok, but... I'd choose more to be more secure with all that vibration. This is an impressive picture, but the sound is limited to whatever the youtube viewer has at the moment of the view, and limited by the microphone/processing of the recording, and also to the compression of UA-cam.
This is dual concentric driver from Tannoy, HPD385. The HF driver is at the center behind the acoustically transparent dust cap. Very early version of these when they switched from GOLD it came with the frame of 8 screw's. Latter Tannoy changed it to 4 screws.
@@2ChannelAudio I still worry that any dust cap would be at risk of distorting the treble. It's a moving solid, right in front of the tweeter. If centering the treble within the other frequencies, then maybe drop the dust cap. This is what was done on old (1960s maybe?) Pioneer speakers I have, although in that case, it was a "squawker" for midrange in the middle where the dust cap traditionally would be, fixed in place by the basket/magnet assembly. The tweeter was instead on a bar a bit off center in front of both attached to the outer perimeter, kinda like modern car speakers are with tweeters.