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Old 12th July 2010, 10:49 PM   #11
imix500 is offline imix500  United States
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Stacking cabs used to be the way it was done in the 80's and early 90's, but there's far too much interference when done UNLESS the cabs are designed to array together (much easier said than done). That's one of the reasons why line arrays became so popular. If you are going to use a regular point source cab, then delay zones are your friend.
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Old 13th July 2010, 08:50 AM   #12
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What are delay zones?
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Old 13th July 2010, 09:23 AM   #13
godfrey is offline godfrey  South Africa
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Quote:
Originally Posted by Williham View Post
Was also wondering, if wall sockets only provide 3KW, how do this big mental rigs in say, Fabric for example, or Digital power their rigs?
High-power rigs don't run off standard wall sockets.

For mobile and especially outdoor use, generators are probably the way to go. You don't want to be running an extension lead half a mile to the nearest house.
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Old 13th July 2010, 11:28 AM   #14
imix500 is offline imix500  United States
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Delay zones are separate speaker systems located further out in the room, field, etc. These speakers are time-aligned with the main systems to maintain volume and intelligibility from the front of the audience area to the back. It can be one speaker on either side of the room or a bunch on scaffolding 300 feet from the mains in a field.
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Old 13th July 2010, 01:46 PM   #15
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Ok so essentially just using some delay circuit to align the phases of all the speakers; I thought there may be a need for something like that.
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Old 13th July 2010, 07:54 PM   #16
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Originally Posted by chris661 View Post
Yeah, 13A fuses, x230v = near enough to 3000w.

Anyway, working to 3kW ensures your system can be used anywhere. Constantly blowing fuses isn't particularly good to listen to, and replacing the fuse with a 6" nail is plain dangerous.
The fuses should hold for more than 3kw multiplied with 3 maybe 4, as long as it is music and not constant sinewaves. Some modern amplifiers like digam K20 for example also has programmable powerdraw limits. However that amp will actually draw 13A/230v at 18000watt with pinknoise-1/8, see datasheet:
http://pro-audio.powersoft.it/download_get.php?obj=827


BTW, when talking about amplifiers, well: the scale is logaritmic so it will go up very fast... twice the power is just slightly more, ten times is more noticeable...
However, units like TC-Finalizer can add a lot more healthy "percieved loudness" to the sound than multiplying of the amplifiers can...

Last edited by electroaudio; 13th July 2010 at 08:15 PM.
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Old 14th July 2010, 07:15 PM   #17
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I had a look at the TC Finalizer 96k; it looks like a damn nice piece of kit! Just I may have to save my pennies.. Or student loan :P.. This is why Im so poor!!

So does that work by converting the sound into digital and then resamples and converts back to analogue? I can imagine that If there is a mixer with a digital output to hook it up to then the improvement would be a lot more.
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Old 14th July 2010, 07:32 PM   #18
imix500 is offline imix500  United States
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We use both the finalizer 96. And finalizer express at work- theater use.
The 96k is one heck of a powerful processor, but the express is a bit easier to use with fewer options. Not a bad thing for live use where time is precious.
They both work as you said, and the same goes for any true digital processor with analog i/o.
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Old 14th July 2010, 08:22 PM   #19
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Yes, it is digital with adda converters.
But it is the multibandcompression and the tubelike distortion (DRG) that does the trick.
Depending on how clean and dynamic your rig is to start with, you can add up to 10-15dB of percieved loudness with those, but if your rig is bad to start with it wont do any greater difference.
There is also a discontinued unit called Triple-C that also has those functions, but personally i like the EQ and the other FXes that exist in the finalizer.
Also, look for the original finalizer wizard not the plus or 96k, those later ones are more subtle than the original and therefore more suited for studio.

BTW, i tried the express for 5 minutes once and disliked it very badly, the real one or the tripleC is much better.

Last edited by electroaudio; 14th July 2010 at 08:27 PM.
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Old 14th July 2010, 08:52 PM   #20
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We seem to be stabbing in the dark here, so let's set some reasonable constraints.

Budget
Audience/area you want to cover
Size/weight of this rig (important for transport costs)

ElectroAudio - there's some mistake with that datasheet. The watts out when running at 13A@230v = 2250, with 763 watts being lost as heat.

The rated power is 18,000watts, sure. But it's never ever going to get there unless you use an alternative power supply.

These delay zones may be something to look into, but it depends on exactly how much area you need to cover. A couple of full-size bass horns and some decent mid-highs would suffice for a large area. You wouldn't need a lot of power either, if you design the mid-highs for efficiency. A 12" mid with a resonance of maybe 80Hz would have an efficiency of well over 100dB. Suddenly, you don't need much power to go very very loud.
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