I haven't heard them but imho Hiquphon tweeters appear to be among the very very best. If you don't need a tweeter to go lower than the recommended 2.5khz I doubt you can do better.
I don't know if any other tweeter that is +\- .5db from 2khz to 20khz other than the Hiquphon OW1. The off axis response of the OW1 in incredible, their CSD is extremely extremely clean, and they come in matched pairs. I hate to be that guy who judges speakers or drivers purely off their specs- but hey there are measurable things that have shown to be audibly preferable in blind tests. This tweeter does it better than anything else that I know of.
On the subjective side, I haven't read a single unfavorable review. Paul Carmody sure seems to like them too.
https://sites.google.com/site/undefinition/carrera
I don't know if any other tweeter that is +\- .5db from 2khz to 20khz other than the Hiquphon OW1. The off axis response of the OW1 in incredible, their CSD is extremely extremely clean, and they come in matched pairs. I hate to be that guy who judges speakers or drivers purely off their specs- but hey there are measurable things that have shown to be audibly preferable in blind tests. This tweeter does it better than anything else that I know of.
On the subjective side, I haven't read a single unfavorable review. Paul Carmody sure seems to like them too.
https://sites.google.com/site/undefinition/carrera
I haven't heard them but imho Hiquphon tweeters appear to be among the very very best. If you don't need a tweeter to go lower than the recommended 2.5khz I doubt you can do better.
I don't know if any other tweeter that is +\- .5db from 2khz to 20khz other than the Hiquphon OW1. The off axis response of the OW1 in incredible, their CSD is extremely extremely clean, and they come in matched pairs. I hate to be that guy who judges speakers or drivers purely off their specs- but hey there are measurable things that have shown to be audibly preferable in blind tests. This tweeter does it better than anything else that I know of.
On the subjective side, I haven't read a single unfavorable review. Paul Carmody sure seems to like them too.
https://sites.google.com/site/undefinition/carrera
Yes agree. Having used the OW1 OW4 in several designs. These tweeters are by far some of the smoothest tweeters to listen to and easy to design with. 😎
I think you nailed the reason. The incredible off axis response can be a detriment is there are projections to create diffraction. You don't see it with the Morel due to the waveguide. I recommend a thick felt ring around the OW1, preferably with a star shaped opening. Even a washcloth just for testing purposes.
Oh I just realized the tweeters are surface mounted as well. I thought you had flush mounted the tweeter and surface mounted the mids (that's my setup). In my case it is because with the semi horn loaded tweeter that is very close to time aligned. I always planned to add felt like shown above but never got around to it.
Even seemingly small lips will create diffraction effects I'd definitely flush mount the tweeters, and measure again. Even just make up a baffle with just the tweeter cutout on it use the same chamfering (but no mid cutouts) and first measure surface mounted, then flush mounted. It will also give you an idea what effect the mids are having on tweeter diffraction.
Tony.
Even seemingly small lips will create diffraction effects I'd definitely flush mount the tweeters, and measure again. Even just make up a baffle with just the tweeter cutout on it use the same chamfering (but no mid cutouts) and first measure surface mounted, then flush mounted. It will also give you an idea what effect the mids are having on tweeter diffraction.
Tony.
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