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re-production View Drop Down
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    Posted: 19 February 2019 at 2:41pm
Hi Speakerplans,

A client has asked for a Quadrophonic system in a small room (200 cap), does anyone have any tips for setting a quadraphonic system up? 
Is it best to not delay the system at all? 
Do you want each stack to be doing the same Freq response or would it be better to have the rear speakers acting as fills?
It's for disco music played from CDJ's, the system will be Res 2 and F218 with separate EQ and delays on each output of the system.

Thanks in advance!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote godathunder Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2019 at 3:13pm
what does your client mean by quad?

double stereo
stereo from the mains, spatial information from the rear
4 discrete channels with panning joystick
LOUDER THAN LOUD
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Post Options Post Options   Thanks (0) Thanks(0)   Quote 4D Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2019 at 3:44pm
Quite.  joystick driven quad as Tony will tell you involves folk running up telling you that the speaker over in the corner has stopped working 

we used to do 4 stack configs with the rear pair running a reversed stereo signal which works reasonably well especially if you can fly the tops and keep the subs in a mono block close to the booth 

another thing was symmetry ie: perfect square then you can keep the levels equal otherwise working in a rectangle there is a lot of judicious faffing with gains & delays and there will always be somewhere in the room where its out of synch and all a bit clattery with the bass/low mid either summing or cancelling... 

so square room its do-able rectangular room its a compromise and often it is preferable if you can do true stereo with delay stacks for the rear of the room.   
DMZ. "The bass was intense. Girls were literally running up to stand next to the subs"
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mini-mad View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote mini-mad Quote  Post ReplyReply Direct Link To This Post Posted: 19 February 2019 at 3:55pm
Does sound like an awful waste of time...

How many times have anyone here every had a punter come up to them half way through a gig a comment on how fantastic the stereo separation is on their system?

Quadraphonic sounds way too 70s to me. I'm guessing the owner is also the DJ and is aiming for something he thinks will sound "cool" but when the room is full of half drunk/high punters... no one will care.

Set up as stereo... with delay stacks at the end of the room and tell him its quadraphonic. 
If it sounds like a gorilla is trying to escape, turn it down.
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