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Author: MichaelRead Big gold star, 5000 posts Feste Award Winner! Old School Fool Add to my Favorite Fools Ignore this person (you won't see their posts anymore) Number: of 10469  
Subject: Re: New sub Date: 10/3/2012 4:23 PM
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How are the new surrounds working out?

I boosted the levels on them compared to the YPAO settings. Most of the time if they are doing much I can't really hear it. Which might be a good thing. On occasion, however, a movie does something that gets enough coming out of them that I notice, and once I even wondered what it was for a moment (e.g. did something happen in the kitchen?). That's definitely a good thing.

1poorguy


What I’ve done is play something 5.1 first with the back surrounds on and then with them off to hear a difference. There is. To me it’s particularly noticeable because, with the surrounds, the room’s ‘ambience’ shifts. Elly put it as ‘the room seems larger’ with the surrounds. Those in-ceiling speakers you chose are damn good and I would expect – even if your room is large as it is – you’d notice the difference with them off.

It's strange, but I'm so conditioned to pointing the speakers straight I'm having a hard time in my mind just entertaining the idea of turning them. That will also change the bass port (since it will now bounce off the back wall at an angle). I know that's mostly for air movement, but I believe it also does add some to the sound.

The SM115’s, because of the huge woofer move a hell of a lot of air and because they’re ported rather than sealed the speaker’s tympani moves air through the back ports that does carry sonic information. So you have, basically, two low-frequency streams: one direct from the front and one from the back (the back stream carrying only bass data). This means you have two reverb-causing signals from the unit.

I’d toe in the SM115s just to see how those changed streams affect the room’s reverb characteristics. One thing I have found is ported speakers need more physical room than unported.

MichaelR
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