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Old 17th September 2009, 11:02 PM   #31
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will you ever try a full-ranger?
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Old 17th September 2009, 11:17 PM   #32
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It is funny how with each iteration you get closer and closer to Orion ... in fact if you made your baffles a tad wider (or angle woofers a bit to fit) you could place them under and presto - Orions on the cheap !

Great journey, I'm jealous ! Any chance of demoing them one day ?

Bratislav
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Old 25th January 2014, 09:39 PM   #33
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Originally Posted by Bratislav View Post
It is funny how with each iteration you get closer and closer to Orion ... in fact if you made your baffles a tad wider (or angle woofers a bit to fit) you could place them under and presto - Orions on the cheap !

Great journey, I'm jealous ! Any chance of demoing them one day ?

Bratislav
I kind of stuck with cd mid tweets/ dipole bass for a long time, made (for me) a difficult planar stand mount with a tuned chamber (Neo 10 mid bass needs reinforcing)that double dutied as a 400 hz transmission line, along with a rear 4" port to provide some dipole radiation . The BG neo 3 made dipole treble very easy.
Now I've gone as simple as I can; a vintage SEAS tv21 mounted off centre in a variably tilting 19mm disk, below a 7.5" planar tweeter from a cancelled project.
The tweeter amp is hi passed at line level with a tiny cap, the mid woof amp highpassed with a larger nos teflon cap, also at line level.
Deep bass supplied from an old push pull sub setup.
The idea was to conserve tube watts and minimize parts count in the signal path.
Basically aiming the beaming frequencies of that 8" seas in a snooker shot off the ceiling and behind my listening position, and adjusting the angle to get a decent blend with my tweeters.
Seems like a simple design like this gets more stuff right than my more elaborate and difficult (costly in time and $) projects.
Sometimes inspiration can beat perspiration.
It's always a process; hopefully we get better...
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Old 25th January 2014, 10:58 PM   #34
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Quote:
Originally Posted by Bratislav View Post
It is funny how with each iteration you get closer and closer to Orion ... in fact if you made your baffles a tad wider (or angle woofers a bit to fit) you could place them under and presto - Orions on the cheap !

Great journey, I'm jealous ! Any chance of demoing them one day ?

Bratislav
Still travelling, used a Taiwan 4" whizzer cone full ranger as a tweeter with the SEAS tv21 , same configuration; very very good, even if it looks laughable, but everything's dipole but the bass.
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Old 26th January 2014, 08:23 AM   #35
Juhazi is offline Juhazi  Finland
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Still travelling, used a Taiwan 4" whizzer cone full ranger as a tweeter with the SEAS tv21 , same configuration; very very good, even if it looks laughable, but everything's dipole but the bass.
Sorry, but we should be careful with the term "dipole". An open back configuration does not radiate in dipole pattern throughout it's range. This problem was discussed earlier in this thread, and "evolution" has lead to 4-way dipoles. Still the geometry/physics give us trouble in the tweeter range.
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Old 26th January 2014, 11:46 AM   #36
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Originally Posted by Juhazi View Post
Sorry, but we should be careful with the term "dipole". An open back configuration does not radiate in dipole pattern throughout it's range. This problem was discussed earlier in this thread, and "evolution" has lead to 4-way dipoles. Still the geometry/physics give us trouble in the tweeter range.
Thanks for the heads up. I will read up on this.
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