New build - Usher 8948A / RS28F waveguide MTM

[Pete Schumacher]

Re: New build - Usher 8948A / RS28F waveguide MTM

Dadgummit ! This is why I haven't received my Cirrus speakers yet ! He is just playing around in his shop :p LOL

Looks way cool bud ... Can't wait to get my waveguide design ! Breaking windows with Breaking The Law .... Oh yeah !

He's had those enclosures for quite a while now.

I'm glad to see him finally getting started on them. :p

There's going to be another room with equipment, so if you bring them, I'm sure they'll have a chance to be heard.

[Mayhem13]

Re: New build - Usher 8948A / RS28F waveguide MTM

Nice design premise, and i don't think you'll have any vertical off axis response considering the waveguide directivity. Pete's suggestion of the .5 woofer above the WG makes good sense here as well. Overall, i think the design will be an excellent performer.:D

[r-carpenter]

Re: New build - Usher 8948A / RS28F waveguide MTM

Looks GREAT! I'd love to hear them.

[Wolf]

Heehee...

What caps? :D
I wanna know....
Wolf

[mgrabow]

Re: New build - Usher 8948A / RS28F waveguide MTM

very nice. Access to a CNC is sweet... What is the channel on the sides for? or was that covered already...

[DoubleTap]

Re: Heehee...

What caps? :D
I wanna know....
Wolf

Hopefully I can use some of those 20lb bags of Auricaps ... also have some Hovland Musicaps I'd like to try.

[DoubleTap]

Re: New build - Usher 8948A / RS28F waveguide MTM

very nice. Access to a CNC is sweet... What is the channel on the sides for? or was that covered already...

Covered already ;)

[dian1511]

Re: New build - Usher 8948A / RS28F waveguide MTM

Does the MCM waveguide have to be modified in any way to be attached to the RS28F? If so, can you please tell us how you did this?

Thanks,

Darren

[Pete Schumacher]

Re: New build - Usher 8948A / RS28F waveguide MTM

You have to machine off the back of the WG until the opening is the same size as the small wedge shaped scallop around the tweeter opening on the face plate.

DT then applied some nuts with epoxy putty to the WG so that he can screw the tweeter with face plate to the back of the WG.

[dian1511]

Re: New build - Usher 8948A / RS28F waveguide MTM

You have to machine off the back of the WG until the opening is the same size as the small wedge shaped scallop around the tweeter opening on the face plate.

DT then applied some nuts with epoxy putty to the WG so that he can screw the tweeter with face plate to the back of the WG.

Did you guys take any pictures, especially of the back of the WG? Or might it be possible, so as to get a clearer picture of the outcome/process?

[Pete Schumacher]

Re: New build - Usher 8948A / RS28F waveguide MTM

I'll see if I can get him to take a few more pics when I visit with him this weekend.

Gonna be cuttin' some wood!!!

[Wolf]

Re: Heehee...

also have some Hovland Musicaps I'd like to try.

From what I gather- those can be picky about the driver you use with them.
I hope to try a set out in the 'jig' eventually, but they're about $40/ea for what I need.

Thanks for the reply..
Wolf

[greywarden]

Re: New build - Usher 8948A / RS28F waveguide MTM

do you have a cnc or did you get them machined? If you did, do you mind me asking how much it cost you?

[evilskillit]

Re: New build - Usher 8948A / RS28F waveguide MTM

do you have a cnc or did you get them machined? If you did, do you mind me asking how much it cost you?

If you're talking about how to machine the waveguides down to the right size opening, this may help.

http://techtalk.parts-express.com/blog.php?b=93

If not, disregard.

[greywarden]

Re: New build - Usher 8948A / RS28F waveguide MTM

I was actually refering to the enclosure.