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- jholtz 8:18PM
- rjj45 8:18PM
- Tom_S 8:18PM
- tommytunes50 8:18PM
OK, time for another Cabrini iteration...
I have a couple designs using the Cabrini name. First was a 2-way using the GRS poly 6.5" and the 3x7 piezo tweeter. It was... ok. Featured in a PE flier so that was cool.
Next iteration was the same woofer using the GRS dome tweeter. Much improved and they actually made a midwest tour lol. Several people had them in their possession for awhile.
Third iteration used the Dayton waveguide tweeter. I was never satisfied with this version, so I don't think I released information on it.
This version is a different animal, it is going to be a 2-way with the poly GRS 8" "subwoofer" and the Dayton silkie. I will be naming it "Cabrini the Last". Cabrini is the patron saint of immigrants, so I chose that to honor my Irish grandparents as they were from the old country, both sides of my families actually emigrated in the 30s.
This is a project I am going to squeeze between the one I just finished and my next serious build using the big Heil tweeter.
Anyway, I am going to start the cabinet design process here shortly. Will update as I go.
Comments
Wait - what 8 inch GRS? I threw a pair of the 8SW-4 in an order that should be here next week. The plan is to build a new set of shop speakers.
That's the one, Tom.
Cabrini Fini.
I think I watched a netflix video on this .
Ignore , it was a housing project in St.Louis ... https://www.imdb.com/title/tt1788461/
Im guessing they both succumbed to the same demise
Also the name of a very good private hospital in Melbourne (Oz)
Geoff
Bass alignment, modeled with Qa of 0.2 and series resistance of 0.35 (I anticipate no more than a single laminate core coil on this one). Resulting Q is 1.1 or so, 2db ripple at 80Hz. Should have a bit of a kick to it. Note: a while back I did a 3-way using this woofer and the GRS mid and the Dayton Audio designer tweeter. This design uses same cabinet dimensions, so it would be possible to re-purpose those cabinets by making a new baffle.
Here is the CAD for the cabinet. 1" round-over is what I will be using. Reasonably well braced. Big boys, will need a stout stand so I will possibly design one of those as well. Should make for a nice tower, as well. Call it 2.0 cubic feet. Not a huge difference in the bass, but would make for a cool looking design.
What de-ell is 8.305, 15.710, 7.555, and 2.790?
Golden ratio derivative?
Prolly just JR making fun of mixing inch and metric measurements on the same schematic disguised as ridiculously precise dimensions not easily attainable with wood working tools/materials.
Chatter about housing projects and wonderment about measurements aside.
You are on a roll and in a groove - go with it.
I dont make fun of anyone, I leave that to assholes.
Amen.
I bet that is the dimensions surrounding the woofer. Because that is where it looked good. And actual numbers don't matter much when you can have the parts CNCed out. Not knocking it. I would too if I had access to it.
After that 3-way, your comments about the woofer's extension and rollof had haunted me of doing a possible 2-way with it. Glad you are making it happen so that monkey can get back in the coffin (and off my back).
Slow progress on this currently - my CNC guy is rebuilding his machine and it is too cold in my garage to cut them myself. Ugh, already tired of winter.