Switch to run a pair of speakers from 2 amps

elgee · 24th November 2011, 08:22 PM

Hello there. I need to run a pair of floorstanders from 2 amps (not at the same time) and be able to switch between the 2 so as not to cause damage to either amp. I think Beresford market something like this.

Does anybody know of a kit that will enable me to do this, please?

Regards,

Les G

lduarte1973 · 09:23 PM

Russound AB-2.2 Table top A/B Selector - Compare Prices and Reviews on Russound AB22 Engine Parts at PriceGrabber

http://www.stereo.net.au/forums/show...-switching-box

http://sound.westhost.com/absw.htm

elgee · 24th November 2011, 09:27 PM

I'll look it up. Thanks.

Les G

lduarte1973 · 24th November 2011, 09:53 PM

switch speaker between two amplifiers

morteh · 25th November 2011, 05:29 AM

id use one of those powersaving outletbars, on your secundary amp.
it got a relay funktion. then You culd set it up so when you turn on amp2 it will automaticly drag an relay, switching the speakers from amp1 to amp2.

Ian Finch · 25th November 2011, 07:44 AM

If it is only the amplifier outputs you wish to swap, any speaker protection relay kit will have changeover contacts that can be used for this. You only need to ensure that any DC protection circuit is disabled and it triggers simply from applying the rated relay coil voltage of 12, 24V etc,

Simpler still, use just one basic DPDT switch. With a high current rating like 15 amps, these are just as effective a solution and needs no extra parts or power.
If that is all too hard to look for, electrical power switches are just as good if DPDT (Double pole - Double throw) as you require. You may even see a suitable plastic box to mount it in if that is necessary.

elgee · 25th November 2011, 08:02 AM

Brilliant. Thank you all for your suggestions. Definitely food for thought. I'll get my thinking cap on and see which design fits my setup best.

Thanks again

24th November 2011, 08:22 PM	#1
elgee diyAudio Member Join Date: Oct 2011	Switch to run a pair of speakers from 2 amps Hello there. I need to run a pair of floorstanders from 2 amps (not at the same time) and be able to switch between the 2 so as not to cause damage to either amp. I think Beresford market something like this. Does anybody know of a kit that will enable me to do this, please? Regards, Les G

24th November 2011, 09:17 PM	#2
lduarte1973 diyAudio Member Join Date: Feb 2009 Location: Lisbon	Russound AB-2.2 Table top A/B Selector - Compare Prices and Reviews on Russound AB22 Engine Parts at PriceGrabber http://www.stereo.net.au/forums/show...-switching-box http://sound.westhost.com/absw.htm Last edited by lduarte1973; 24th November 2011 at 09:23 PM.

25th November 2011, 07:44 AM	#6
Ian Finch diyAudio Member Join Date: Apr 2010 Location: Coffs Harbour, on the east coast	If it is only the amplifier outputs you wish to swap, any speaker protection relay kit will have changeover contacts that can be used for this. You only need to ensure that any DC protection circuit is disabled and it triggers simply from applying the rated relay coil voltage of 12, 24V etc, Simpler still, use just one basic DPDT switch. With a high current rating like 15 amps, these are just as effective a solution and needs no extra parts or power. If that is all too hard to look for, electrical power switches are just as good if DPDT (Double pole - Double throw) as you require. You may even see a suitable plastic box to mount it in if that is necessary. __________________ regards

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24th November 2011, 09:27 PM	#3
elgee diyAudio Member Join Date: Oct 2011	I'll look it up. Thanks. Les G

24th November 2011, 09:53 PM	#4
lduarte1973 diyAudio Member Join Date: Feb 2009 Location: Lisbon	switch speaker between two amplifiers

25th November 2011, 05:29 AM	#5
morteh diyAudio Member Join Date: Nov 2011	id use one of those powersaving outletbars, on your secundary amp. it got a relay funktion. then You culd set it up so when you turn on amp2 it will automaticly drag an relay, switching the speakers from amp1 to amp2.

25th November 2011, 08:02 AM	#7
elgee diyAudio Member Join Date: Oct 2011	Brilliant. Thank you all for your suggestions. Definitely food for thought. I'll get my thinking cap on and see which design fits my setup best. Thanks again

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