IA76 Posted March 25, 2009 Share Posted March 25, 2009 Hi I volunteer at a local community centre and have been given the job of sorting out a PA system. The equipment we have so far is:- 12 x 20w speakers (I can confirm model number later)wired & wireless micsmixer What I need to know is what kind of amp to use to power these speakers and how to wire up the speakers correctly? Thanks Link to comment Share on other sites More sharing options...
tokm Posted March 25, 2009 Share Posted March 25, 2009 12 x 20w speakers (I can confirm model number later)What I need to know is what kind of amp to use to power these speakers and how to wire up the speakers correctly?Don't think anyone can help with the latter, till we know the former. So the quicker you get that, the quicker someone will be able to give you an answer. In a community centre and with that number of speakers, I'd be very surprised if it wasn't some sort of 100v line system.. but we'll see. T Link to comment Share on other sites More sharing options...
Robin D Posted March 25, 2009 Share Posted March 25, 2009 We need a little more information to confirm, but I suspect given the quantity and the wattage that these 100v line speakers. If you look at one closely you should see a stepped 'volume' control. (It might just be a slot head pot with the head visible in a small hole that you can turn with a screwdriver.) The wiring and amp is quite different if it is 100v line. Robin Edit: Ah. Beaten to it by tokm! Link to comment Share on other sites More sharing options...
IA76 Posted March 25, 2009 Author Share Posted March 25, 2009 The equipment isn't actually fitted yet as it was donated to us. The speakers are interM cs-720 http://www.inter-m.net/0729_update/catagor..._720/cs_720.htm Link to comment Share on other sites More sharing options...
drsound Posted March 25, 2009 Share Posted March 25, 2009 Simple answer - they're wired in parallel from a 100v line amp like this: LINK. The competent electrician you employ to do the wiring will know what to do. Link to comment Share on other sites More sharing options...
Sound Man Posted March 25, 2009 Share Posted March 25, 2009 I wouldn't of thought that you need to install all 12 of them unless you have a very large building. Link to comment Share on other sites More sharing options...
IA76 Posted March 25, 2009 Author Share Posted March 25, 2009 Thanks for the information. Our the speakers we have suitable for a 100V system? The 12 speakers are spread over 3 rooms. Link to comment Share on other sites More sharing options...
Sound In Gloucestershire Posted March 25, 2009 Share Posted March 25, 2009 I am presuming you will require 3 volume controls (1 for each room) will you need more control than that? EG one side of one room louder than the other? Will all 3 be playing the same music? or will you require one thing in one room etc? These are all vital questions before we can start suggesting equipment Link to comment Share on other sites More sharing options...
IA76 Posted March 25, 2009 Author Share Posted March 25, 2009 all 3 rooms are the same size and will need to play the same audio. It won't me music, just audio from the mic eg. seminars on drugs etc Link to comment Share on other sites More sharing options...
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