My 4x8" fullrange open baffle - diyAudio
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Old 5th June 2007, 01:41 PM   #1
Hatti is offline Hatti  Germany
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Thumbs up My 4x8" fullrange open baffle

Hi,

I like to show you my (little different from other) open baffle project.

I make some "crazzy" tests with edge simulation software. Than I built this baffle and I can tell you: "It sounds great!"

I can enjoy rockmusik, classic and jazz without missig anything! Never hear jazz before! I hate that! With this speaker itīs ok!
Only for deep-low frequenz, like Soundtrack: Titanic itīs not usefull! Maybe, I added a Dipol-Sub for that; time will see...

Be welcome on my page:
http://freenet-homepage.de/stratihat...1e1d3fe4a.html

If you have questions, feel free to ask!

greatings from germany, Hatti
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File Type: jpg roket rechts.jpg (91.2 KB, 1595 views)
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Old 5th June 2007, 02:01 PM   #2
sreten is offline sreten  United Kingdom
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Hi,

Your drivers appear to be too near the edges for optimising the point where baffle roll-off starts.

Also by wiring 2 of them as a 0.5 way you can extend bass ~ 1 octave, but 6dB lower sensitivity.

/sreten.
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Old 5th June 2007, 07:09 PM   #3
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Hi!
Guess you could call them Moby

Cheers!
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Old 6th June 2007, 01:45 PM   #4
Hatti is offline Hatti  Germany
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Hi sreten,
first it seems to be not so good, that the speakers are near to the corner of the baffles.
So, if you put the speaker in the middle of the baffle, you get a little bit deeper frequency, but you also get a 2dB peak at 450 Heart and a 2dB hole at 1000 Heart. (see on picture)
Than you have to built a network for compensation! I don’t want something like this. The form of baffle with the position of the speakers is the acoustic-eq!
I do not need any network for correction.

To make a 0,5 system: Than I don’t get what I want! I know what you mean. It cut some mid and high and it seems to be a bigger deep frequency. But not lower frequency. The speaker and the baffle can’t play under 50 Heart. It’s a mechanic problem. And it’s really only necessary, if you hear music from cine with deep low freq.
Sound’s very good, in this constellation; I take a lot of different chassis to check, witch combination works well together.
I make a lot of test with baffles and other kind of speakers: closed, with and without bassreflexion; rear loaded horns; back ventilated; and resonance box. and now I think: “this will be the one I like, for a longer time!”

The bestīs so long the best, since you find some better thinks!

@ peterbrorsen: moby? you mean moby, the big fish?

Have a good day, Hatti
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File Type: jpg red line speaker in the middle of the baffle.jpg (39.0 KB, 1142 views)
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Old 9th June 2007, 07:22 PM   #5
Hatti is offline Hatti  Germany
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Hi,

is there anyone, how make this baffle-form-equalisation, like me?

greatings from germany, Hatti

backside picture:
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File Type: jpg 4x8 roket backside.jpg (73.7 KB, 1155 views)
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Old 13th June 2007, 04:54 PM   #6
hm is offline hm  Europe
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Hello Hatti,

do you have a measurement and an impedanz for us?
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Old 13th June 2007, 05:19 PM   #7
Hatti is offline Hatti  Germany
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Hi hm!

Sorry ībout this, but I havenīt!

I tune my system with a Test CD ! Use single frequences, pink noise, sweep and drumm-solo.

Microfoneīs my ear and processorīs my head!

For me itīs not nessassary to messure it! If you want? About 160 km to me!

Iīm still looking for a Test-Vinyl; to tune my phono pre...


"less is more" I agree with you!!! nice Hornspeakers on your page!

Greetings, Hatti
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Old 30th November 2010, 09:48 PM   #8
Rudolf is offline Rudolf  Germany
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Hatti,

where is that "4x8" fullrange open baffle" you are talking about?
In your picture/link I only see some well proportioned lady with an oversized belly button. . You seem to prefer a darker tan with women, don`t you?

Rudolf
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Old 1st December 2010, 08:42 PM   #9
Hatti is offline Hatti  Germany
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Hi Rudolf (or mr. open baffle),

you found my ladies? Terrible with that picture links! There must be something wrong...

This is an old open baffle projekt. I think, you still know what happend...

Click the image to open in full size.

timeīs changing and good stuff replaced by better stuff cheap fullrange speaker dy1026u in Ikea-box

Good evening, Hatti
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