Originally Posted by Ronomy
Originally Posted by George Mills
[quote=crion]Question: Are The movie presets Cinema/Discrete devoid of any clipping with +3dB? Even if a speaker is running as small and The LFE Channel is mixed in? No headroom needed there?

I have not measured it yet.

George! Have you tried creating an all digital speaker config that includes an LFE sub to see if all the channels are still -3db? I wonder if -3db is only for configs with no LFE or sub. Then another thought is what happens if your rears and center are set to small? Does Meridian throw away even more bits for headroom in the main channels?

Ron [/quote]

No, I did better than that. I configured a 2 Channel system with 2 channel source (no LFE), No Mrc. And it still attenuated 3dB.

I also know that the system can clip even without the +3dB.

Even if LFE rerouting did cause a clip by having the same frequency on the LFE Channel (Full Scale) and a Front Channel (Full Scale), the frequency of that happening and the small harm it would cause compared to throwing out 3dB of resolution on all channels 100% of time is a no brainer to me. I'd just assume let it clip. Most often it would be LFE to TWO Large mains. So it would not be 3dB.

The only time I worry about clipping is if it's continuous. Occasional clipping is not a big deal (even Meridian says that in their DSP Speaker Manual).

Good CD's are even mixed sometimes with a little clipping. It's worth it to get the best dynamic range. Just like here CD mixers are willing to let things clip a little in order to retain as much fine detail on the bottom end as they can.

- Fiddler (IMHO)

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