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How to parallel amps

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serioussound View Drop Down
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    Posted: 13 March 2018 at 12:00am
How do I parallel 5 pcs of amps with no output link?

Please see picture.

Very thankful for answers





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Elliot Thompson View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 1:43am
A Distribution Amplifier are designed for such purposes or you can an LMS as an alternative.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote serioussound Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 7:15am
What is a LMS?

Is it not possible just connecting double cables in paralell in the euroblocks an daisy chain the amps this way?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote fatfreddiescat Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 8:43am
Wire g to g, + to +, - to -. Do not link anything other than loudspeakers to the amplifier outputs.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kevinmcdonough Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 9:03am
yeh at a basic level just need to wire two cables into each phoenix connector (the little green screw connectors for the inputs).

Or as Elliot said you could get some sort of active signal splitter if you wanted. 

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Post Options Post Options   Thanks (0) Thanks(0)   Quote serioussound Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 9:25am
Is it possible to get 2 cables in each hole of Phoenix connector? What cable would you use for this?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 10:16am

An LMS is a Loudspeaker Management System.

The problem with chaining multiple amplifiers, such a scenario is putting more pressure on the device that is sending the signal. Think of it as using an amplifier at 2 ohms per channel versus 4 ohms per channel vs 8 ohms per channel. The more loudspeakers the amplifier has to drive, the more pressure the amplifier undergoes. 

This is why distribution amplifiers are used. It allows you to send the signal to all the amplifiers with no loss in the audio signal. 

Distribution Amplifiers can be found used on Ebay or you can use an LMS.

The process is as follows;

Audio Processor -> Distribution Amplifier -> Amp 01, Amp 02, Amp 03, Amp 04, Amp 05

An LMS can do the same job as it is a Distribution Amplifier excluding the crossover network, equaliser, delay and, limiter.


Best Regards,  

 



Edited by Elliot Thompson - 13 March 2018 at 10:17am
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serioussound View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote serioussound Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 10:26am
Ok. So daisy-chain link amplifiers is not possible to do or it works?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 10:35am

Originally posted by serioussound serioussound wrote:

Ok. So daisy-chain link amplifiers is not possible to do or it works?

It will not work for the amount of amplifiers you are trying to chain without degrading the audio signal you are sending to the amplifiers. 

Best Regards, 



Edited by Elliot Thompson - 13 March 2018 at 10:36am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote serioussound Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 10:37am
Ok how many would you sy is possible to daisychain?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Elliot Thompson Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 10:47am

Y Adapters allow you to daisy chain two devices. Anything beyond that runs the risk of signal degradation.  Bear in mind what you are aiming to do I have done decades ago so I am telling based on real world experience.

Best Regards,  



Edited by Elliot Thompson - 13 March 2018 at 10:48am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote serioussound Quote  Post ReplyReply Direct Link To This Post Posted: 13 March 2018 at 10:49am
Ok and a XLR split box is also a bad idea or those are better?
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