"Into The Abyss", Tweeters in low places

[TN Allen]

Tim something seems odd in that photo, when I took off the faceplate there was still an 1/8" ridge around the surround. You can see it there but it is flush with the rest of the plastic not raised. I assumed it was part of the plastic but maybe it was removable?

Here is the link to the PE page: https://www.parts-express.com/dayton...4-ohm--275-143

Perhaps I missed something?

[augerpro]

I'll take one apart when I get home tonight.

[TN Allen]

I'll take one apart when I get home tonight.

Perhaps PE inserted the wrong photo.

[augerpro]

Well I'll be, there is a separate plate for the phase shield. This will get the waveguide throat from 1.61" at the grill down to 1.49" at the surround with the PS plate removed:

[TN Allen]

Interesting, and much easier to produce a simple interface to the guide. 1.49" isn't so much over the 1.475" that worked for the RS28F, perhaps someone will test both in the same guides. It's also good that should an RS28 fail, it can be replaced without too much modification to an existing waveguide, provided the guide is used with the original faceplate and mesh plate removed.

I do like the large alignment pins that locate the diaphragm. They're a needed improvement over the RS28.

[xmax]

This is good news! Pete also noticed the replacement diaphragms do not have the shield.
With the RSTs I have the shield seems to be glued on I will take another look in the AM,
I also have the aluminum versions and replacement domes coming tomorrow.

[DaveFred]

Pix, hopefully sweeps and curves first in am-ish.

In the top pic, what is the tweeter on the right?

[Wolf]

New RST28 is on the right.
Wolf

[xmax]

This is the RST28 in the Visaton WG 148 R Wave Guide. it measures nice but I still need to mount it in a baffle.

[TN Allen]

It's a nice fit, but the finish seems quite rough. Has anyone suggested an advantage to the roughness

[xmax]

It's not as "rough" as it looks in this pic.

[TN Allen]

Are there dimensioned cross sections available for the wgs you're using, other than Pete's and other designs contributed by forum readers?

[xmax]

I'm back from a much needed vacation, I'm back to work tomorrow and the first thing I am working on is the RST in a guide.

[paulspencer16]

Hey, I was looking at this from a different perspective and was trying to time align tweeter and woofer, and ended up here on this thread and using the same over the counter WG. I'm still waiting on some drivers but have some RST-28F data that may pish the discussion along.

[paulspencer16]

use