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multicore


stevieboi

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Hi all

 

I'm trying to think up ideas for a custom install for a multicore in a hall. the stage end wants to be able to sit on the floor in the middle of the band (it wants to be able to move around and not be fixed anywhere at this point) then run down the side of the hall to a wall mounted termination point. I want this termination to be some kind of multipin connector that I can plug in and then plug XLR's into the desk etc.

 

16 send

8 return

stage end to termination point 20m ish

termination point to desk about 10m

 

any ideas appreciated

 

thanks

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What I suggest is that you get a weighted stage box and connect that to the multicore via an EDAC or other suitable multipin connector. Then have an EDAC connection at the stage wall (or wherever) run a multicore line down the hall to an EDAC connection at the back of the hall, and then use another EDAC lead with a set of tails on the end. This way, if any individual component needs to be repaired/moved/changed/ then this is possible.

 

SO: STAGEBOX - EDAC CABLE - WALLBOX - WALL EDAC CABLE - WALLBOX - EDAC CABLE - TAILS - DESK

 

Im sure someone else can explain this better than me.

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Basically, what he said :)

 

My first choice wouldn't be EDAC but the connection is not relevant here.

 

*A stage box with you 16 and 8 on it with a fixed cable of a set length coming out of it with your chosen multipin on the end.

 

*A box on the wall with 2 parallel Multipin connectors on it. And the cable hardwired which travels either up and around or through the wall to the FOH position.

 

*A box on the wall at the FOH position with a multipin connector on it.

 

*A lead with multipin connector on one end and your XLR tails on the other to plug into the desk.

 

 

 

That in that order from the stage box to the desk, why the 2 multipins on the box at the stage end? one day you may want a separate monitor desk, or you may have to put the FOH desk down by the stage.

 

Rob

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hi all - thanks for your replies.

 

yes ive thought about future expansion - we are currently using a 12/4 so 16/8 seems a logical step up for us. - basically we want to reduce setup time by having something installed in the hall ready for us. I want to have something like a standard multicore at the stage end - like http://www.theloudest.co.uk/?sectionid=1&a...p;product_id=39 however the foh end wants to terminate on a multipin connector - I could even use this multicore and then make a few gender benders...... however what multipin connector should I use for this amount of channels? and what are the parts and costs involved, having never used anything like this before.....

 

 

cheers

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What multicore to use....

 

Big question.

 

Are you going to terminate them yourself or get someone in to do it?

- If you do it yourself can you afford to buy/hire crimp tools, Pin inserter/removal tools?

- If you get someone in can you cope if you loose a pin or need to repair the thing without the tools?

 

How many times do you expect this to get plugged up / unplugged each day?

- In a broadcast / recording instalation enviroment you find hundreds of EDAL/ELCO/etc connectors. They are dirt cheep with cheep pins but are not the ruggedest connector in the village - they are great for remote manafacture of numerous items that need to be quickly connected on site but not for daily use in my opinion.

-VDM Harting etc are the alternatives.

 

I would recomend Harting HD72 connectors for your application as they have 72 pins (24ch), removal/insertion tools will not break the bank and are not the hardest connector to deal with.

 

However I'm biased as all of my multicore is based on Harting HD42 / HD72 / HD180 connectors and were you to use this as a standard you might be interested in hiring desks / more multicore from anyone else using harting.

 

Of course many other people use many other standards.

 

Good luck

 

James

 

ps if you wanted to go down the EDAC/ELCO route then I have a large pile of connectors and spare pins which date from the days before I could afford harting. I had to do too much maintinance on them to keep them going so cut them off and replaced them with hartings. Much happier now. Everything I've done since then has been harting.

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... what multipin connector should I use for this amount of channels? and what are the parts and costs involved, having never used anything like this before.....

 

Multipin connectors are certainly very useful but are a pain to assemble. Some use solder, others crimp terminals and some use separate pins which must be wired before inserting into the connector body. You will often need some custom tooling for this process too. My advice would always be to let someone else do it - its just a pain otherwise.

 

We use the Van Damme stuff - VDM Multipin Connectors. These are solid and reliable.

 

Multipins are expensive though and will significantly add to the cost of a manufactured system.

 

Steve

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One of my multis is EDAC the other harting. One day I'm going to break the Edac - but hasn't happened yet.

 

I have to admit that I'm a convert to the multi in a mult approach. As in the multi terminates in chassis sockets in a box, side stage, as usual. Then, a short multi goes to the stage centre with flying XLRs going into the main multi box. My multis are 24 way, but the short one is 16 channel - all sockets in the stage box, males on the cable ends. The reason I'm such a convert is that I now rarely re-patch at the desk, and do it on stage. Cost wise, it's worked out quite well too.

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... what multipin connector should I use for this amount of channels? and what are the parts and costs involved, having never used anything like this before.....

We use the Van Damme stuff - VDM Multipin Connectors. These are solid and reliable.

 

Just going to second the Van Damme recommendation.

 

We did an install last year with nearly the same setup.

 

Stage box --> multicore--> vdm wall socket--> vdm--> tails to desk

Desk was mounted in a pop up rack on wheels ( 20ch A&H Mix Wiz) with eq`s and fx , comps underneath. The multicore terminated to a wall mounted ( lockable!) box with a vdm chassis plug inside. The short link from desk to the wall socket can be coiled up inside the rack as well. Oh and the power c-form was an angled down 16a which was mounted next to the multi box and 16a link and plug live in the flight case as well. Means the whole FOH can be tucked away ( well they put a tablecloth on the flightcase and a vase of flowers when it`s not in use !) Because they are plugging in and out maybe three times a week it wasn`t worth skimping on a connector that isn`t up to the job....

 

.p.

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