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Multi-Way Conventional loudspeakers with crossovers

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Old 29th October 2011, 04:59 PM   #721
Toaster is offline Toaster  United Kingdom
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NaO DW?
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Old 29th October 2011, 06:13 PM   #722
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Yes, the NaO DW Mark III. I have posted about it before but now I am using the miniDSP 2x8 with great success. This is the antithesis of my NaO Note in that no attention what so ever is paid to directionality. Yet it images very well and has the dynamics and SPL capability to sound live. It sounds BIG.
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Old 29th October 2011, 07:22 PM   #723
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Originally Posted by john k... View Post
It sounds BIG.
Congratulations! It's nice when a rational design can be made to look good.

I would be curious as to the effect of a slim strut from just under the top rear to the floor/wall interface point perpendicular to the baffle. The visible strut to the plinth extension to the rear would have almost no effect when the speaker is on carpet, I imagine.

Also, the comment on sounding BIG caught my eye. This is one of my favorite characteristics - too many systems sound LOUD when you turn them up. I really like the very few I've heard that simply sound bigger. I guess I am not alone in discovering the importance of generous headroom in the bass/lower mid area as an important factor in "fidelity".
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Old 29th October 2011, 07:48 PM   #724
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Heh! It should sound big- it is big! if I had a pair of these in my room they'd pretty much meet in the middle of the space I have! What's going on with the Scan-Speak John? Some kind of damping or absorption of the backwave?
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Old 29th October 2011, 09:02 PM   #725
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Originally Posted by Toaster View Post
Heh! It should sound big- it is big! if I had a pair of these in my room they'd pretty much meet in the middle of the space I have! What's going on with the Scan-Speak John? Some kind of damping or absorption of the backwave?
I could be all analytical and tell you that the felt pad on the midrange is designed to reduce back wave radiation at higher frequencies LP filter) so that the rear mid radiation rolls off smoothly to accommodate the lack of a rear tweeter. It probably does that to some extent. But its primary function is to prevent light from coming through the cone of the 8554. Without it there is an annoying yellow spot seen through the grill.
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Old 29th October 2011, 10:38 PM   #726
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I don't know- all that fancy talk about directivity, velocity vs pressure, room modes and all that malarky, and in the end it's all about the looks of the thing with you John...
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Old 30th October 2011, 09:05 AM   #727
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The first OB's

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Old 30th October 2011, 01:14 PM   #728
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From Paul's blog: Leon Suter, designer of naked dipoles "Kyron Gaia".

You could buy them for a cool $198,000, including DSP, amps etc.

Click the image to open in full size.

The build is second to none. Nice aluminium blocks.

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They were launched in Melbourne Audio Show. I went first to their room (of course) .. and being the 1st person from public to ever hear them. I thought that was COOL
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Old 30th October 2011, 04:24 PM   #729
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Some more AE Dipole12s, Soulssonic:

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and Lotusgroup:

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/Erling
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Old 5th November 2011, 06:01 PM   #730
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Originally Posted by Godzilla View Post
I'm curious how the Fostex 203 will compare to the TB 1808 on OB with the Alpha's... You've got a nice setup.

300hz xover seems high. How did things sound closer to 200hz?
I have tested it more now and Eminence Alpha 15a is best to keep not higher than 200 hz. 300 hz sound really bad.
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