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Multi-Way Conventional loudspeakers with crossovers

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Old 27th July 2007, 01:20 AM   #1601
Pano is offline Pano  United States
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Default Re: Re: VVLOB / Virtual Very Large Open Baffle

Quote:
Originally posted by LineSource
Getting great sound from up against the wall speakers could make one rich and famous.
Back to the future. Back to the "Audio Console". Just deep enough for amps and to put a flat TV on top. Wives would love it. At least that what my wife wants me to build.
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Old 27th July 2007, 02:28 AM   #1602
Salas is offline Salas  Greece
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Quote:
Originally posted by Russell Dawkins


I don't understand this comment - could you elaborate, please?

I basically say that an amp is a voltage source and tries to maintain its voltage against current demand variations. The speakers are voltage controlled devices for SPL and they sink more current the less their impedance is, demanding more power. So the amp will give to the 6 Ohm (Z as stated by Olsher at covered frequencies) woofer, 4.5dB (2&1/2) more power than to the 16 Ohm fullranger in order to maintain same voltage for both. This does not make up 8.5dB as in the article. If it was for 2&3/4 the voltage more on the woofer then it would.
Power dB we can add directly to SPL dB and get the picture.
I would drive the whole speaker from a 16 Ohm tap so that the reflected impedance where the woofer works gets down half and more, so the tubes would produce more power there with a little more distortion. That would add further output to the woofer.
That EAR amp though seems to be a hybrid with transformer coupled solid state output . Don't know if it has a 16 Ohm tap or how it works with reflected impedance. No info.
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Old 27th July 2007, 07:16 AM   #1603
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Default Re: Re: VVLOB / Virtual Very Large Open Baffle

Quote:
Originally posted by LineSource


Getting great sound from up against the wall speakers could make one rich and famous.

No magic here, you just need proper MCH ( not 5.1) to replace the missing early reflections, that pulling the speakers out provide (adding depth to the stage in audiophile lingo).

With that you can actually create the early reflection (and reverb) structure of a real concert hall, not just a sucky small audiophile listening room's.
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Old 27th July 2007, 10:10 AM   #1604
el`Ol is offline el`Ol  Germany
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Default Re: Re: Re: VVLOB / Virtual Very Large Open Baffle

Quote:
Originally posted by panomaniac


Back to the future. Back to the "Audio Console". Just deep enough for amps and to put a flat TV on top. Wives would love it. At least that what my wife wants me to build.

Or maybe 2" wide speakers that also serve as lamps.
http://www.sonus.de/php/p_produkte.p...produkt_id=342
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Old 27th July 2007, 03:04 PM   #1605
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That is what I am building Pano.....if she is happy, everybody is happy.

Ray
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Old 27th July 2007, 09:26 PM   #1606
Pano is offline Pano  United States
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Quote:
Originally posted by Ray Collins
if she is happy, everybody is happy.
"She who must be obeyed".

It's an idea who's time has come again. When you get some work done on it, Ray, please post.

If I could get great sound out of a console, I'd be all for it. Fcserei's idea of some reverb enhancement is a good one. Maybe something from the Yamaha line of HiFi DSP and/or Cinema DSP - "Digital Soundfield Processing" - remember the old Yamaha DSP-1? A very cool device. Yamaha still puts the DSP into their stuff.

But we're not here to talk about consoles and DSP! Sorry Lynn.

I would actually enjoy a "Beyond the Console" thread based on the ideas above.
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Old 27th July 2007, 10:53 PM   #1607
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Default RIGHT

Michael said", But we're not here to talk about consoles and DSP! Sorry Lynn."

If the email notifications about postings can be modified when some progress is made towards something resembling a box, flat or not I will be glad to read. Otherwise I'll just pop in in every two months to have a peak. If you are waiting for Lynn to carry the load, I do so hope you know he still has a big OWIE. Get to 99% please for all our sakes. Your sake especially, I know from experience how shitty it can be.

Me contribute? OB's are not my suit, that's why I 'm here; to learn. This 24 - 4" NSB's OB array was a total disaster. Sorry did not get link. Will learn that, too!

Meantime I've got many horn projects to finish for my little T-amps.
Yes, that's a plug for Panomaniac. Biggest one is quad amping with them. More than fun. Zene

Click the image to open in full size.[/IMG] [
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Old 28th July 2007, 09:43 AM   #1608
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Hi Zene,

Did you ever find a use for all those 4"ers ?
I've a box of 18 (as new) 3"ers here !

Cheers .......... Graham.
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Old 28th July 2007, 10:55 AM   #1609
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Default NSB

Graham ... No, still have about 60 never used. Cannot think of a use for them, now, except maybe HT; 6, 9 or 12 per array OB could be impressive. Would be willing to sell if someone is interested.

Damn, now I'm veering off path, sorry. So I can save face, how would a big cluster of 4" speakers sound for this OB project?
The old sweet 16 was good in it's day.
Zene
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Old 28th July 2007, 11:50 AM   #1610
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Hi Zene,

I have wondered the same, with response tapering from the top driver down as suggested by Lynn.
Though the effort involved after trying 'lines' puts me off.

Cheers ....... Graham
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