Round radiating tweeter, aka "Enterprise 1" tweeter! - diyAudio
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Old 22nd June 2006, 01:32 PM   #1
tubee is offline tubee  Netherlands
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Default Round radiating tweeter, aka "Enterprise 1" tweeter!

Hi all.

I want to show here my 2 surround-back speakers. Wanted to keep the costs low, so made for a 20mm CRB-40 neodymium car tweeter a dispersion cone. Woofer is an old bextrene Audax unit.
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Old 22nd June 2006, 01:38 PM   #2
tubee is offline tubee  Netherlands
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close up tweeter, sorry for blurryness
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Old 22nd June 2006, 01:41 PM   #3
tubee is offline tubee  Netherlands
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Turn in mind picture 180 degrees: Enterprise!

Btw sound is very good for such a cheap tweeter. Removing metal grid before dome was the best modification. Because round radiating highs its like the tweeters can communicate with eachother, very good soundstage in treble. You can walk around the speaker and hear no difference in treble output.
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Old 22nd June 2006, 02:24 PM   #4
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Did you make the dispersion cones yourself? What are they made out of?

Nice work BTW.
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Old 22nd June 2006, 03:17 PM   #5
tubee is offline tubee  Netherlands
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Sdcls126: Made the cones from acrylic (PMMA), turned on a lathe, then polished. The foot is regular MDF silver sprayed, the stander is from alumium. Thanks for compliment
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Old 22nd June 2006, 03:28 PM   #6
tade is offline tade  United States
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I am very impressed! Bravo!
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Old 22nd June 2006, 05:44 PM   #7
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the cabinets are extremely beautiful, great work man
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Old 22nd June 2006, 06:12 PM   #8
Tenson is offline Tenson  United Kingdom
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Wow, beautiful!

I wonder why we don't see any omni stand-mounts?
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Old 22nd June 2006, 06:18 PM   #9
tubee is offline tubee  Netherlands
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Thanks Nemophile, Tade.

Cabinet is simple: MDF, the roundisch sidewalls are from 2 layers 4 mm fibreboard, soaked in water and bended/ glued/ nailed over pre curved bottom-top plate. Inside is a brace from side to side, and some dampening sheets on all walls. Will glue some strokes of glass in too. Cabinet has rear-firing bass tube.

Veneering i did in a other way as i did usual, not with tixotrope glue(lot of solvents, i get a sore throat of it) but i did this with the "Klang & Ton" way: woodglue on both sides, let dry 20 minutes, then iron it on, in whool preset of iron. Veneer is paper-backed cherry.

Stand mounts i am thinking of allready.
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Old 22nd June 2006, 09:05 PM   #10
rho is offline rho  Belgium
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Ik ben het helemaal niet eens met je onderschrift.

Anyway....
Nice speakers. Beautiful finish. I'm working with paper back cherry too. Is that just clear lacker or did you finish them with something else? It looks great.
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