So this has been a 10+ year project in the making. Kids, moving and other hobbies got in the way but it's back now.
The long and short of it is as follows,
12" dayton horn with 2 sb10pgc21-4 drivers and a sb26 Tweeter per side.
The enclosure is egg shaped, sort of and will have active cardioid dispersion via a single side vented vifa ne265 driver. How you ask? More details to come but I think it's a unique configuration, at least one I have never seen before. Driver mounting plates cut out of aluminium and hot glued on.
Ready to fill the gaps with construction adhesive, i bought the wrong one but it seems to be sticking ok.
Horn has been dampened with rubber base tile glue, its a rough job and im not proud but it will be fixed, sort of..Next pics are a jig i used to cut the throat to height and the drivers mocked up in position. I modified the tweter faceplate and am about to glue it to the horn. It will still just guve me access to remove the tweeter if need be.
The long and short of it is as follows,
12" dayton horn with 2 sb10pgc21-4 drivers and a sb26 Tweeter per side.
The enclosure is egg shaped, sort of and will have active cardioid dispersion via a single side vented vifa ne265 driver. How you ask? More details to come but I think it's a unique configuration, at least one I have never seen before. Driver mounting plates cut out of aluminium and hot glued on.
Attachments
A few more pictures of the tweeter face plate mods.
A holesaw is used to allow the faceplate to drop over the back of the waveguide.
The sides are the cut off to allow space for the mid drivers to sit flush with the edges of the tweeter.
And finally a clue as to the final form of the whole speaker, ignore the afterburners...
The sides are the cut off to allow space for the mid drivers to sit flush with the edges of the tweeter.
And finally a clue as to the final form of the whole speaker, ignore the afterburners...
Attachments
A little more progress. Flat surface is milled in the glue damping so the rear enclosure can sit flat.
The rear enclosures are stainless mixing bowls with a hole cut in the bottom for tweeter clearance. They will be damped with something, maybe tile glue and sikaflex as well.
The rear enclosures are stainless mixing bowls with a hole cut in the bottom for tweeter clearance. They will be damped with something, maybe tile glue and sikaflex as well.
Interesting! I didn't know that there were any K-Mart stores left as they 'folded their tent' in Ga., ~ nationwide in the early '90s along with Zayre.
Anyway, S.S. Kresge was one of the first 'super' store chains that spun off K-Mart, an even more 'one stop shop' chain to compete with Arlan's to the point where S.S. Kresge changed its name to K-Mart after Arlan's closed its doors in the early '70s. Truly one of those 'best of times, worst of times' as the consumer won big time from a 'one stop shop', lowest price POV, but engendered near 'slave labor' practices. 🙁
Anyway, S.S. Kresge was one of the first 'super' store chains that spun off K-Mart, an even more 'one stop shop' chain to compete with Arlan's to the point where S.S. Kresge changed its name to K-Mart after Arlan's closed its doors in the early '70s. Truly one of those 'best of times, worst of times' as the consumer won big time from a 'one stop shop', lowest price POV, but engendered near 'slave labor' practices. 🙁
OK, thanks! At the time didn't know Beau was in Australia, but there's actually three still open in the USA that I was referring to.
Haha, no sorry, that product is tile glue, like this.
https://www.bunnings.com.au/dunlop-...GvBgljscNa-caA4ALShoC4eMQAvD_BwE&gclsrc=aw.ds
https://www.bunnings.com.au/dunlop-...GvBgljscNa-caA4ALShoC4eMQAvD_BwE&gclsrc=aw.ds
Even more interesting. I've experimented with thin set mortar which appears to be the same product without the rubber additive. It sticks well, as it has an adhesive in it. Superficially, the stuff I have, looks about identical to what I see in the pictures.
Thanks for the sharing!
Thanks for the sharing!
Time to work on the enclosure.
It's some sort of resin/stone pot that I picked up from the local hardware. The walls are only 3 or 4 mm thick but they will be reinforced in a similar way to the waveguides. Here I have dummied up the spare guide I have to see how it looks and to check on mounting ideas. Hoping to be able to mount it from the rear to avoid any visible fixings.
I like the square edge look but am not opposed to rounding it over, will see how badly it affects things when I get to measuring.
It's some sort of resin/stone pot that I picked up from the local hardware. The walls are only 3 or 4 mm thick but they will be reinforced in a similar way to the waveguides. Here I have dummied up the spare guide I have to see how it looks and to check on mounting ideas. Hoping to be able to mount it from the rear to avoid any visible fixings.
I like the square edge look but am not opposed to rounding it over, will see how badly it affects things when I get to measuring.