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Author
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Topic: Changing Sound Levels in a CP500
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Manny Knowles
"What are these things and WHY are they BLUE???"
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Posts: 4247
From: Bloomington, IN, USA
Registered: Feb 2002
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posted 07-02-2012 12:36 AM
Bonnie,
Perhaps my first question should've been -- What's going on at your theatre? What has prompted you to make adjustments to your system?
There are actually differing opinions on the best method of setting amplifier gain level. Depending on your amps, your speakers and size of the room, it may be necessary to turn the amps down. (It doesn't harm the amps if they are running at max.)
Dolby recommends starting with the amp gains at maximum. As stated in my earlier post, that is the first instruction under "Room Equalization," and it appears in boldface type. I'm concerned because you consulted the manual, but somehow missed that. I'm also concerned that you don't seem to understand the difference between the main fader (on the front of the CP500) and the amp gains. There's no other way to put it: That's a serious misunderstanding, and it strongly suggests that you do not (presently) possess a full understanding of what you are attempting to do.
(In time, you can learn all of this. But that won't help you right now.)
This is why I advise you to hire a professional technician to take care of whatever sound problem(s) you are experiencing. << That's a good, helpful piece of advice.
I'm sorry that you think we're being mean to you, but the fact is that your qualifications aren't a good match for this job. Without the proper training, tools and experience, there is a great likelihood that you won't really improve things. You could worsen the situation or cause damage to your speakers. And you definitely won't meet the SMPTE standard by winging it. (I know this because that was me about 12 years ago.)
So -- Some questions:
Please clarify -- Are you saying that the volume on the front of the CP500 is running at 10? That is the one that *should* be at 7 (not the amps). If you're running everything with the CP500 at 10 that is a problem.
Are you using the CP500 to play sound from a digital cinema package? Or are you running 35mm prints? If you're using film, then tell us if you're using the analog soundtrack or digital soundtrack.
(If this is a film system, we need to get this thread moved to the Film Handler's Forum.)
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