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Old 6th February 2008, 04:48 PM   #1
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Lightbulb I search for most low price 6 or 8 inch fullrange

I search to buy fullrange or coax pro audio driver for create LINE ARRAY.

My personal choice is the 8 inch coax ALTEC LANSING CD408 98dB but the price with shipping to canada is too expensive $$$$


Do you know what's the most LOWEST PRICE fullrange (97dB or MORE ONLY) 6 or 8 inch driver ?


Thanks in advance for your answer !!!

nicK

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Old 6th February 2008, 08:57 PM   #2
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Old 6th February 2008, 09:20 PM   #3
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Line array with full-range or coax drivers = instant lobing problems. You'll need to use massive Eq to bring the top-end up, and that won't do anything about the severe phase issues. I don't want to sound negative, but they're generally not a good idea, and better I mention it now than you find out after spending a fair amount of cash. If you haven't yet read Jim Griffin's Line Array White Paper, I suggest you do so before proceeding.
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Old 6th February 2008, 10:58 PM   #4
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okay !!!

I search low price FULL RANGE or WIDERANGE but not driver at 200$ each (nirvana) hemp or fostex no ! Low price only.



I view in OLD commercial product many box with 8x 8 inch fullrange speaker. in šline array styleš

Thanks !

nicK
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Old 6th February 2008, 11:41 PM   #5
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Default check out Parts Connection, Solen, etc.

How cheap is cheap? Parts express has many listed. The Pioneer 8" ones from Parts Express are something like $25 each. If multiples used on the same baffle, easy to increase efficiency.

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Old 7th February 2008, 11:31 AM   #6
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Quote:
Originally posted by nickthevoice
I view in OLD commercial product many box with 8x 8 inch fullrange speaker. in šline array styleš
Yeah. And they didn't work too well either.

For example, let us assume that you have a driver centre-to-centre spacing of 8in. Lobing will begin from approximately 1.7KHz, and this will get progressively worse as frequency increases. That's just the laws of physics I'm afraid, & the reason most arrays have a separate tweeter line -preferably with ribbons, from a convenience point of view.

There are a couple of examples of line arrays using FR drivers. Roger Russel uses 25 3in Vifa drivers per channel in his IDS 25 speakers (lobing will begin at roughly 4.5KHz), and applies massive Eq to flatten the overall response trend. Darren Kuzma used 32 2in Tang Band tweeters in his smaller project -again, massive Eq is required to bring the top-end back up. Unfortunately, this does nothing about the phase problems such designs suffer from. They just have to hope you don't notice.

If you really must use FR drivers, I'd advise using a focused array, rather than a line array, with the front panel curved to focus the energy from the drivers onto a single point. That's about the least compromised thing you can do with FR drivers in a column.
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Old 7th February 2008, 12:06 PM   #7
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okay T H A N K S !!!



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