Hello all,
attached my new home designed and homebuilt BLH for the Fe166en.
Project name: "Alphorn"
It´s inspired by a lot of Information I read here in the forum.
Best regards
Steini
attached my new home designed and homebuilt BLH for the Fe166en.
Project name: "Alphorn"
It´s inspired by a lot of Information I read here in the forum.
Best regards
Steini
Hello all,
thank you very much for your replies.
Some data:
Material: Birch Plywood
Size: H=1520 mm, W=246 mm, D=505mm
Pressure chamber app. 6 litre (after adjusting it with sand app. 3litre )
Exponential flare
Design: conventional calculated by hand and checked with Hornresp.
Sound (my subjective impressions): balanced, detailed, very good imaging also out of axis. After adjusting the pressure chamber sound was locking in (I´m more and more believing in the "Resonance Theorie" of www.hornlautsprecher.de - solutions in sound) Ears are the best measurement device.http://dict.leo.org/ende/index_de.h...oc=0&resultOrder=basic&multiwordShowSingle=on
Next planed modifikation: Phase plugs
Steini
thank you very much for your replies.
Some data:
Material: Birch Plywood
Size: H=1520 mm, W=246 mm, D=505mm
Pressure chamber app. 6 litre (after adjusting it with sand app. 3litre )
Exponential flare
Design: conventional calculated by hand and checked with Hornresp.
Sound (my subjective impressions): balanced, detailed, very good imaging also out of axis. After adjusting the pressure chamber sound was locking in (I´m more and more believing in the "Resonance Theorie" of www.hornlautsprecher.de - solutions in sound) Ears are the best measurement device.http://dict.leo.org/ende/index_de.h...oc=0&resultOrder=basic&multiwordShowSingle=on
Next planed modifikation: Phase plugs
Steini
Stunning is a great word to describe these. You did a very nice job! Do you have construction pictures so we can see the inside???
Hello ,
I didn´t made pictures while working on them - but I have a CAD screenshot which shows you the inside:
Steini
I didn´t made pictures while working on them - but I have a CAD screenshot which shows you the inside:
Steini
Steini, as I said in the fullrange photos thread, these are beautiful! I'm wondering, though, about that tight plywood turn at the top. Are you willing to say what you did to accomplish that? Even with 1/4 inch plywood that's a tight turn. But with heavier material like 3/4 inch/19mm, that's just about impossible in my experience.
Anyway, congratulations on your build. As Planet10 says, you nailed it!
Anyway, congratulations on your build. As Planet10 says, you nailed it!
Hello Carl,
you are right the arc radius on the top is to small to bend it.
The inner layer of the speakers top is segmented. The finish layer
is made by a birch plywood sheet, thickness 4mm. To make it bendable
you need heat and humidity. You have simply to "cook" it in the baking oven in a water filled casserole dish for approximately 20 Min. at 250°C. After this procedure you can easily bend it over the top by hand and screw it on. Leave it there for app. 2 days trim it and glue it to the speakers.
If there is a interest in plans for the "Steini´s Alphorn" I can draw some, and can compose a "how to do manual". They are made without a complex bending form. The only power tools you need is a wood router, jigsaw and a cordless drilling machine.
Price for the plans would be 25€
Regards Steini
you are right the arc radius on the top is to small to bend it.
The inner layer of the speakers top is segmented. The finish layer
is made by a birch plywood sheet, thickness 4mm. To make it bendable
you need heat and humidity. You have simply to "cook" it in the baking oven in a water filled casserole dish for approximately 20 Min. at 250°C. After this procedure you can easily bend it over the top by hand and screw it on. Leave it there for app. 2 days trim it and glue it to the speakers.
If there is a interest in plans for the "Steini´s Alphorn" I can draw some, and can compose a "how to do manual". They are made without a complex bending form. The only power tools you need is a wood router, jigsaw and a cordless drilling machine.
Price for the plans would be 25€
Regards Steini
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