Speaker Switching

rdr · 3rd September 2006, 08:32 PM

I'm looking for a recommendation. I want to switch many amplifiers to many speakers. Basically these three settings:

Serious listening - quad amped system - 3 speakers L& R & sub
Background listening - as above but cut out one amp for my delicate Ionovacs
Home theater 5.1 - all of the above

This is going to have to be custom. I don't want one of those commercial switchers with autotransformers or load resistors. So I need to find appropriate relays for the purpose. Anyone know what kind/manufacturer is best in terms of low contact resistance/wear and current capability?

noodle_snacks · 3rd September 2006, 11:24 PM

Your explination is not very clear, how bout a diagram of what you want to do?

rdr · 4th September 2006, 01:45 AM

No need for a diagram. I just need a recommendation on what type of relay to use with the contacts rated to handle power amp outputs and with really good contacts.

sreten · 4th September 2006, 11:07 AM

Hi,

search / research relays suitable / used in power amplifier
protection circuits and you should find something suitable.

Alternatively you could use a bank of manual switches.

/sreten.

Pano · 5th September 2006, 02:18 AM

RDR, let us know what you find.
I need to do an amp swithing setup, too. Not as fancy as yours, but finding relays with quality contacts would be nice.

rdr · 5th September 2006, 03:19 AM

A search here was of some help, but no parts #s. I am now going through Mouser and all the manufacturers they sell. Looks like some 16-20 amp DP/DT 24 DC coil relays might do, but I'm not sure about the contact material. Contact fouling over time is a factor. I'll report back later.

3rd September 2006, 08:32 PM	#1
rdr diyAudio Member Join Date: Aug 2006	Speaker Switching I'm looking for a recommendation. I want to switch many amplifiers to many speakers. Basically these three settings: Serious listening - quad amped system - 3 speakers L& R & sub Background listening - as above but cut out one amp for my delicate Ionovacs Home theater 5.1 - all of the above This is going to have to be custom. I don't want one of those commercial switchers with autotransformers or load resistors. So I need to find appropriate relays for the purpose. Anyone know what kind/manufacturer is best in terms of low contact resistance/wear and current capability?

5th September 2006, 02:18 AM	#5
Pano diyAudio Moderator Join Date: Oct 2004 Location: North Carolina Blog Entries: 4	RDR, let us know what you find. I need to do an amp swithing setup, too. Not as fancy as yours, but finding relays with quality contacts would be nice. __________________ Take the Speaker Voltage Test!

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3rd September 2006, 11:24 PM	#2
noodle_snacks diyAudio Member Join Date: Mar 2004 Location: Hobart, Tasmania	Your explination is not very clear, how bout a diagram of what you want to do?

4th September 2006, 01:45 AM	#3
rdr diyAudio Member Join Date: Aug 2006	No need for a diagram. I just need a recommendation on what type of relay to use with the contacts rated to handle power amp outputs and with really good contacts.

4th September 2006, 11:07 AM	#4
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, search / research relays suitable / used in power amplifier protection circuits and you should find something suitable. Alternatively you could use a bank of manual switches. /sreten.

5th September 2006, 03:19 AM	#6
rdr diyAudio Member Join Date: Aug 2006	A search here was of some help, but no parts #s. I am now going through Mouser and all the manufacturers they sell. Looks like some 16-20 amp DP/DT 24 DC coil relays might do, but I'm not sure about the contact material. Contact fouling over time is a factor. I'll report back later.

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