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» Film-Tech Forum ARCHIVE   » Operations   » Film Handlers' Forum   » How Do Drive In Cinemas Work? (Page 4)

 
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Author Topic: How Do Drive In Cinemas Work?
Tim Reed
Better Projection Pays

Posts: 5246
From: Northampton, PA
Registered: Sep 1999


 - posted 04-08-2007 08:09 PM      Profile for Tim Reed   Author's Homepage     Send New Private Message       Edit/Delete Post 
quote: Jack Ondracek
However, adding a passive pot to the center channel will lower stereo separation because you're effectively feeding one channel to another through the pot.
No, I was talking about a mixer at that point.

Gordon has a good point, about the matrix pumping sounds.

Jack has the answer with the Behringer number... [thumbsup] Incidentally, I've used these on Carmike mono houses that are running DLP:

Rack mount mixer

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John Wilson
Film God

Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999


 - posted 04-09-2007 05:12 AM      Profile for John Wilson   Email John Wilson   Send New Private Message       Edit/Delete Post 
There are houses running DLP yet are still in mono? That's just bizarre.

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Tim Reed
Better Projection Pays

Posts: 5246
From: Northampton, PA
Registered: Sep 1999


 - posted 04-09-2007 10:46 AM      Profile for Tim Reed   Author's Homepage     Send New Private Message       Edit/Delete Post 
In instances where they haven't yet bought the speakers, and/or had the work done in the auditoriums to upgrade existing mono houses to 5.1, yes, they are running DLP monaurally. All the booth work is ready... racks, wires pulled, etc.

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John Wilson
Film God

Posts: 5438
From: Sydney, Australia.
Registered: Dec 1999


 - posted 04-09-2007 04:26 PM      Profile for John Wilson   Email John Wilson   Send New Private Message       Edit/Delete Post 
Still, even if it's only a mono house...it's GOT to be better than 35mm...it's [dlp] after all.

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Daryl C. W. O'Shea
Film God

Posts: 3977
From: Midland Ontario Canada (where Panavision & IMAX lenses come from)
Registered: Jun 2002


 - posted 04-10-2007 12:18 PM      Profile for Daryl C. W. O'Shea   Author's Homepage   Email Daryl C. W. O'Shea   Send New Private Message       Edit/Delete Post 
While you're ordering a mixer be sure to get yourself a compressor too. Even if you use little compression and just use it mainly for limiting it'll be worth every penny.

I've used a half dozen or so Alto ACL2 Pro units in drive-ins with good results. They're cheap as hell, compared to say a Lexicon, too. Their manuals even reference "Good old analog technology".

http://www.altoproaudio.com/html/dynamic_processors.php
http://www.altoproaudio.com/html/details.php?ID=23

If anybody buys these, make sure you get the ACL2 PRO and not just plain ACL2. The "pro" version can link the channels for stereo operation, the base version can't link channels (and is missing a gate rate control IIRC).

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