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11-05-2007, 04:37 PM
| | Registered User
Endorsing Artist: Lakland Basses | | Join Date: Mar 2005 Location: Mississippi / Memphis, TN | | | Running a PA in mono vs. stereo?
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I'll keep it brief for the time being but will elaborate a bit upon why I'm doing this later.
I am planning on running one of my QSC power amps in bridged mode to power our mains (2- 8ohm mains daisy chained together). When running in bridged mode it is mono. I've read a little about mono vs. stereo but not a whole lot.
Will there be a huge difference if I run the PA in mono vs. stereo?
Thanks so much! |
11-05-2007, 04:52 PM
| | Registered User | | Join Date: Jul 2006 Location: Cleveland, OH/Worcester, MA | | | Well, if you run it in mono, you'll get the max power possible to each speaker, but you'll lose the ability to use pans on your mixer for the PA. If you run speaker, each speaker will be getting less power, but you can still use pans. So, if you don't do a lot of panning or need the extra headroom, I'd say use mono.
P.S If you're running the PA as sound reinforcement for everything, stereo might be better. That way, you can pan the instruments (guitar, bass, piano if it's got its own amp) to the opposite side from where they are on-stage, so you don't overpower one side of the venue while the other side is comparatively quiet.
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11-05-2007, 05:02 PM
| | Registered User
Endorsing Artist: Lakland Basses | | Join Date: Mar 2005 Location: Mississippi / Memphis, TN | | | PA will mainly be used for vocals only.....might be a little bit of guitar in the mix but not enough to want to pan it to one side or the other.
90% of our gigs we play have a soundman and PA so we don't have to worry about it, then the other ones are normally small where our power mixer works fine just for vocals. But there is one place we play that we need a little more power since it's a larger room. I'm planning on running a Mono signal from the "main out" on the powered mixer into my QSC RMX850 power amp in bridged mode and daisy chain the mains together and run my monitors off the powered mixer. |
11-06-2007, 02:23 AM
| | | | Mono is best in many rooms because if you hard pan your instruments people on extreme sides of the room will not get a good mix. IMO Stereo is really only good for stereo panning effects in most live venues. Even on recordings things that are hard panned often tend to lose something in mix and sound.
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11-06-2007, 03:38 AM
|  | I took the one less traveled by | | Join Date: Mar 2002 Location: Reims, Champagne, France | | | I tend to use stereo for smaller rooms such as bars.
As soon as I need more power I go mono. It makes it easier to deal with feedback. It also frees a channel for monitor mix. |
11-06-2007, 06:17 AM
| | Registered User | | Join Date: Aug 2005 Location: Glendale, CA (LA County) | | | I've never run a PA in stereo. Not enough of the crowd in the sweat spot, to make it worth while.
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11-06-2007, 06:30 AM
| | Registered User
Endorsing Artist: Lakland Basses | | Join Date: Mar 2005 Location: Mississippi / Memphis, TN | | | Since the Mono channel is the "Left Main Out" do I need to pan all the channels to the left or just leave them at the center detent? |
11-06-2007, 11:32 AM
|  | Supporting Member | | Join Date: Jan 2002 Location: 3rd stone from the sun | | Quote:
Originally Posted by Juniorkimbrough  Since the Mono channel is the "Left Main Out" do I need to pan all the channels to the left or just leave them at the center detent? | Leave them center.
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11-09-2007, 03:12 PM
| | Registered User | | Join Date: Apr 2007 Location: Finland (Northern Europe) | | Hi, Juniorkimbrough.
Unless there's a fancy stereo effect that You want to show off there's IMHO no reason to run PA stereo.
Mono usually produces cleaner and more overall balanced mix than a stereo when using traditional 2 point system. With a 4 point You can actually tip people over with proper use of stereo effects, but that's mainly a techno thing anyway  .
Leave the pans centered, it's easier to use sub-groups that way.
Just my 0.02€
Sam |
11-09-2007, 06:27 PM
| | Registered User | | Join Date: Mar 2005 Location: Fort Wayne, Indiana | | | unless you're in the sweet spot, stereo just muddies things up. pan everything up the middle and run mono. Even most big acts do this now and the mix sounds much better everywhere in the arena.
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11-09-2007, 07:58 PM
| | Registered User | | Join Date: Dec 2005 Location: Sioux City, Iowa | | | The only time you will ever pan something is when the singer decides to run out in front of the mains and you want to eliminate feedback by paning the vox to the other side. Mono is the way to go.
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11-10-2007, 09:21 AM
| | | Quote:
Originally Posted by 88persuader Mono is best in many rooms because if you hard pan your instruments people on extreme sides of the room will not get a good mix. IMO Stereo is really only good for stereo panning effects in most live venues. Even on recordings things that are hard panned often tend to lose something in mix and sound. | exactly, +1
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