Im going to work on a round wave guide for the CSS LD-22 and DX25BG if im lucky hopefully the dx25 will work with the xt25 as well. No certain time-table at this point as i dont know how much testing and fiddling is going to be involved with it.
What I find more interesting is that Tktran (posted in same thread) visited Usher's new retail store and reported Usher is alive and well. They apparently are not out of business as reported. Since the RS28 and Usher 9950 are reportedly interchangeable, it sounds to me like a supplier disagreement with PE and a new US distributor is needed for Usher products. CCS perhaps?
Anyone else have more info?
Jim
I contacted Usher directly and was told that they are out of the driver build-house business.
Okay- that sheds some light on the subject! Looking through many of the tweeters that have copper infused in the motor, the FR rarely exceeds 90dB nominal for those kinds of dome tweeters, so this was a hunch on my part. Copper sucks out so much Bl that the sensitivity goes much lower than without it. I'm happy with this surprise!
Supposedly Jeff B. heard them and decided not to use them in the Continuum remake? Any truth to that? If the F model has real 93 dB sensitivity, it's worth trying.
Supposedly Jeff B. heard them and decided not to use them in the Continuum remake? Any truth to that? If the F model has real 93 dB sensitivity, it's worth trying.
Not true at all. He looked at the specs, response, etc and simply chose a Morel instead.
Chuck, thanks. It's good to get the real story. I guess we should be ready for the never ending debate between old and new.
I'm not interested in remaking everything with the new tweeters, so I'll wait for some inspiration before buying. It's that shelf queen thing. I've got some Piezo tweeters that need some help for a couple of PA builds.
Comments
Never mind - saw Javad's comment about Usher doubling the wholesale price. Either scenario works.
RS28F-4 0-45 deg
These are the samples that we measured... If you ask me, they look quite a bit better than the original RS tweeter.
Jim
The damped high end on the Al is impressive, no artifacts in the off axis measurements.
Who do I need to call to get on the list?
Jim
InDIYana Event Website
Wolfy's Photobucket
Okay- that sheds some light on the subject! Looking through many of the tweeters that have copper infused in the motor, the FR rarely exceeds 90dB nominal for those kinds of dome tweeters, so this was a hunch on my part. Copper sucks out so much Bl that the sensitivity goes much lower than without it. I'm happy with this surprise!
Anything else you care to share, Geoff?
InDIYana Event Website
Wolfy's Photobucket
That is a lot of copper - does it extend all the way down the pole piece?
I have found a number of pre production samples at the tent sale. Can we just skip the tent sale and you sell them to me?
We always keep what we call "The Golden Sample", but we do put pre-production samples in the sale many times.
https://www.parts-express.com/dayton-audio-rst28a-4-1-1-8-reference-series-aluminum-dome-tweeter-4-ohm--275-131
https://www.parts-express.com/dayton-audio-rst28f-4-1-1-8-reference-series-fabric-dome-tweeter-4-ohm--275-141
Jeff doesn't have the only ears on the planet, just sayin'
Chuck, thanks. It's good to get the real story. I guess we should be ready for the never ending debate between old and new.
I'm not interested in remaking everything with the new tweeters, so I'll wait for some inspiration before buying. It's that shelf queen thing. I've got some Piezo tweeters that need some help for a couple of PA builds.