[ARSCLIST] centre speaker is sympathetically vibrating

[phillip holmes <insuranceman@xxxxxxxxxx>]

Could it be cross-talk?


Richard L. Hess wrote:
> Hi, Tom,
>
> No, I don't think the centre speaker is sympathetically vibrating. I 
> just look at it and it seems as if the sound is coming out of it. BUT, 
> when I click and move the signal to it, it the program sounds rather 
> different. As I said, some of it is room, but most of it is head 
> geometry. I think if I rotate my head so one ear is directly on axis 
> to the active speaker, the difference is less, but I haven't played 
> with it too much.
>
> Cheers,
>
> Richard
>
> At 05:30 PM 8/27/2006, you wrote:
> > Richard, do you monitor loud enough that the center speaker is 
> > sympathetically vibrating, thus moving even little air? I've noticed 
> > that this can and does happen at loud levels and it absolutely feels 
> > like amplified sound is coming out of the center speaker. OTOH, 
> > properly placed small monitors in a properly laid out room present a 
> > very large and strong center from the proper listening position if 
> > they're worth their salt, and I'd say your Mackie's are worth their 
> > salt and then some.
> >
> > -- Tom Fine
> >
> >
> > ----- Original Message ----- From: "Richard L. Hess" 
> > <arclists@xxxxxxxxxxxxxxx>
> > To: <ARSCLIST@xxxxxxxxxxxxxxxx>
> > Sent: Sunday, August 27, 2006 4:55 PM
> > Subject: Re: [ARSCLIST] Early stereo LPs: subject to mononuclearosis?
> >
> >
> > > I find a substantial difference between using the single mono centre 
> > > speaker vs. the stereo image from my left and right speakers. While 
> > > some of the difference is attributable to room geometry and layout, 
> > > I think at least some of it is attributable to head geometry.
> > >
> > > I have noticed this before in several different "lashups" and, most 
> > > interestingly, I find my Ampex 2012 speaker amps to sound different 
> > > in this way in a variety of configurations.
> > >
> > > So, I monitor mono in mono and stereo in stereo.
> > >
> > > When I do stereo monitoring and things are going well, I sometimes 
> > > have to check to see that's what I'm doing as I can sense sound 
> > > coming out of the centre speaker, even though its bar-graph is 
> > > showing no signal going to it. So, I think the room is pretty good.
> > >
> > > Cheers,
> > >
> > > Richard
> > > http://www.richardhess.com/tape/facility.htm
> >
> > Richard L. Hess                   email: richard@xxxxxxxxxxxxxxx
> > Aurora, Ontario, Canada       (905) 713 6733     1-877-TAPE-FIX
> > Detailed contact information: 
> > http://www.richardhess.com/tape/contact.htm
> > Quality tape transfers -- even from hard-to-play tapes.