05-19-2013 10:21 AM - edited 05-19-2013 10:23 AM
The coverage area of the speakers should not be aimed where one audience member gets sound from both cabinets. Each cabinet is aimed at its own part of the audience.
And lf course he is talking about running in mono. With a stereo setup, the opposite would be true.
05-19-2013 12:18 PM
05-19-2013 12:37 PM
Pro Sound Guy wrote:
For your application Mono is what you choose to do.
With correct coverage implemented, and slight panning
to left and right of instruments this can be very effective in your musical presentation.
Maybe, maybe not. Really depends on the layout of the room.
My show last night had a guest engineer who sure smelled like he came from the recording world though he denied it. Panned things everywhere without regard to the bigger picture of coverage of the entire room and what it ment to the average balance of the mix. 50% of the folks could enjoy the benefits and 50% of the folks got screwed. Not my idea of acceptable odds.
05-19-2013 02:51 PM
Don...I am trying to provide even coverage to the crowd.
OK what is the horzontal coverage of a single cabinet? What is the desired horizontal coverage angle for the venue? I am making the assumption you are not playing to balconies.
The answer will be different every time you change this much.
05-19-2013 02:52 PM
No right answer except common sense is always number 1.
Also, walking away from the FOH mix and around the room is number 2.
Center channel is another good consideration with a system spread wide, but not always easy to implement.
05-19-2013 02:54 PM
thx Axis....that's what I have been doing. So I should continue doing what I always have done, ya?
Yes ... UNTIL the horizontal coverage becomes so much wider than needed and you are bouncing sound off the side walls. The basic idea with speaker coverage is that the sound should be focused to the listener's ears and nowhere else. That's usually reasonable difficult to do ... but it is the goal.
IF you do end up focusing the speakers where a listener could hear them both at the same time then the goal would be to have them as absolutely as close together as possible ... again, not necessarly easy to do. This is where trap boxes help.
05-20-2013 11:27 AM
A small clairification about horn pattern specs and overlap. When a horn is specified as 90 degrees horizontal dispersion. This is a generality. As the frequency lowers, the horn's (and the whole speaker cabinet's) dispersion becomes wider. The lower the frequency, the less small changes in distance or overlap matter (at 100hz a few cm just won't make much difference). The reason for typicaly putting speakers as close together as possible is so that those frequencies that really do bleed across and intrude into the adjacent speakers zone won't interact negativly. I have seen two stacked boxes with the top one inverted (up side down) to keep the HF drivers as close as possible. Again the lower frequencies don't interact as much.
As has been pointed out (I think by Mr Boomer), reflections off of hard surface walls or ceiling will often cause far more problems than speaker overlap. In the end do what sounds best for the room you're in. Starting with speakers clustered together is only a starting point and not an absolute rule.
OK it wasn't brief but I hope it was clear (as mud :-).
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