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Old 30th January 2008, 11:13 PM   #81
tinitus is offline tinitus  Europe
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Nice one, Joe and in line with what some of us were thinking, I supppose...but just didnt have the answer
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Old 2nd February 2008, 10:27 PM   #82
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Quote:
Originally posted by tinitus

Nice one, Joe and in line with what some of us were thinking, I supppose...but just didnt have the answer

I NEED SOMEBODY LOCAL TO BUILD THE BOX.

And I suppose that any who went ahead on the above recommendations now, then as soon as I get a chance to confirm above measurements I can post the results of the above crossover changes here on this thread.


Just keep in mind that the front baffle should have the same width etc.

Another point, when used as a lateral Centre Channel speaker, then the Tweeter should be a little lower or a little higher, say 10-20 degrees above or below with respect to the listening position, for the flattest response in the top octaves.

Another thing that comes to mind, this will be a near 16 Ohm speaker because the two 6.5" drivers are in series - but the Tweeter 's lower impedance prevents it from officially to be rated as such. Bottom line though, a very easy load on the amplifier.

When I get a little time I will also post some prelim drawings. We have the potential for a suitable companion Elsinore speaker - and if it goes ahead I need to think of a name matching "Elsinore" theme. (Hamlet?)

One more and final point. Still use the Elsinores as main Left and Right, but when used as Rear Channels, a suitable stand(s) that gets the Tweeter near listening height is required. I leave that to your imagination as to what solution you might employ.

Joe R.
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Old 2nd February 2008, 11:04 PM   #83
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HI GUYS

SOMETHING JUST CAME TO MIND.

I GET EMAILS ASKING VARIOUS QUESTIONS AND SPEND A LOT OF TIME ON THEM - MAYBE THESE QUESTIONS AND ANSWERS SHOULD BE POSTED HERE AS OTHERS WOULD LIKELY ASK SIMILAR QUESTIONS. WOULD THAT BE APPRECIATED HERE?

The questioner will be asked for permission before posting - to avoid any potential embarrassment - edited down as much as possible. Also, they will be encouraged to actually post the questions here and avoid the direct emails. Time is a valuable commodity.

Joe R.
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Old 2nd February 2008, 11:17 PM   #84
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I am seeking user/constructor reports on the Elsinore speakers for the website - so if you have already built them, could you contact me on joeras@vacuumstate.com - thanks.

Joe R.
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Old 3rd February 2008, 12:34 PM   #85
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Something like this:


Click the image to open in full size.

Joe R.
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Old 3rd February 2008, 07:25 PM   #86
rob323 is offline rob323  Australia
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mmm, looks good Joe, better hurry up and finish mine off so I can start on these eh

I assuming the centre is still rear ported though so would still need some breathing space between it and the wall.
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Old 3rd February 2008, 08:57 PM   #87
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Can be used vertically as well:

Click the image to open in full size.

Needs Stands - 400-500mm. When used laterally, should be under the LCD/Plasma Screen just under ear height.

Joe R.
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Old 3rd February 2008, 09:12 PM   #88
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The basic dimensions, such as width and depth, are kept the same. The height has been reduced from 1150mm to 666mm. The box, viewed from the front, is now symmetrical laterally and vertically. For example, cut the box in two laterally through the centre of the Tweeter and Top and Bottom will be mirror imgae pairs, do likewise for vertical and Left and Right side of the box will be mirror image pairs. This was something John Dunleavy preached, but for the Centre Channel is a strict requirement, as I see it.

Here is a internal Side View:

Click the image to open in full size.

The internal Main Brace becomes a classic "Figure 8" brace. Compare with the Elsinore constrcution and you can see that the main features have been retained.


Joe R.
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Old 5th February 2008, 04:49 AM   #89
ttan98 is offline ttan98  Australia
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Joe,

I have not read through all the documentations on your website on this project.

one quick question, Are there any advantages using mid bass 1 and 2 in series rather than parallel, similarly for midbass 3 & 4.

please explain.

thanks.
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Old 5th February 2008, 05:26 AM   #90
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Quote:
Originally posted by ttan98
Joe,

I have not read through all the documentations on your website on this project.

one quick question, Are there any advantages using mid bass 1 and 2 in series rather than parallel, similarly for midbass 3 & 4.

please explain.

thanks.
The are in series, which is a bit unusual but deliberate in the case. The two top drivers, the one above the Tweeter and the one immediately below is in series. Like the bottom two drivers are in series.

Joe R.
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