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How do club systems dicipher my stereo music productions ?

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Stuart Branson:
I have been looking around the internet for some information about how club sound systems put the music out to the speakers. I know about crossovers and how they split the signals into bandwidths for the various speakers but I have not found any information about how they sum a stereo signal into Mono or even if this is done by the crossovers, since most seem to have a L + R input
I am wondering because I am making my music very mono compatible but the music I hear on Radio these days - edm/house etc. - seems to be extremely stereo and some of them sound bad if I play them in mono in my studio, so I also wonder if how a Club System sums stereo to mono is different to how my studio does it ????
Any clues, help appreciated....

Taylor Hall:
The short answer, it depends on each club's FOH and stage input setup.

The long answer is that it can either be summed properly via their mixer, DI box, or other piece of gear designed for that purpose, or summed incorrectly and actually cancelling out some of the signal.

While it's not difficult to maintain a stereo mix from your decks to the speakers, it can be logistically challenging for whoever is running the board if the club only has a small format mixer with a handful of channels and several set changes through the night. If that's not the case, they could be downmixing at the board and simply outputting a mono signal from there. They could also make use of a DI box on stage that takes a stereo input and sums it before going to the mixer. It can also depend on what kind of outboard gear (crossovers, limiters, other DSP) is between the mixer and amps/speakers. Most crossovers are capable of running in either stereo or mono mode, but the tradeoff is that running them in the mono mode gives you more crossover points to better utilize a 3 or 4 way speaker system. Likewise, other outboard gear like limiters or EQs might only have a single channel of input, so summing prior to that is beneficial to cut costs on more expensive stereo gear, or buying multiples of single channel equipment.

So basically if the club has the budget and wherewithal to properly build a system they should be able to run stereo end to end. But again, this will vary from venue to venue so be prepared for either scenario.

Tim McCulloch:
It's bad forum etiquette to post a redundant topic when the original is locked.

Just sayin'

Stuart Branson:

--- Quote from: Tim McCulloch on March 28, 2019, 10:51:28 am ---It's bad forum etiquette to post a redundant topic when the original is locked. Just sayin'

--- End quote ---
Not sure why you think my topic is redundant.
Do you know the answer already ? If so please share.
I did a re post because the previous one is locked which prevents people from answering - which kind of defeats the purpose of joining a forum and writing a question.

Stuart Branson:

--- Quote from: Taylor Hall on March 28, 2019, 08:25:18 am ---The short answer, it depends on each club's FOH and stage input setup.
--- End quote ---
Thanks for your answers.
Interesting that each venue probably has their own unique setup.
What you said about sound cancellation is the main concern.
So as with most things music related, nothing is straight forward.
But do some venues really run Stereo around the place ?
I never thought that would be possible.
Every speaker stack would have to have L+R speakers right ? and there would be no apparent width, kind of pointless ?
Any club/festival sound engineers on here have any insight ?


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