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Posted By: stermarc Can I connect 2 amps to my M3s? - 12/19/10 06:38 AM
I have a Sony home theater amp running only music in one room. But it also has an iPod dock and an XM tuner running through it/controlled through it.

I'm probably getting a Blu-ray and moving this Sony to a nearby room with the big screen, but would still like to hear the XM and iPod through those M3s in the first room.

How can I do that? My Sony has preamp outputs, can they be plugged into the lower-end Sherwood that will now be in the music room connected to the M3s? The Sherwood is stereo-only with inputs for CD, Aux, TV and Tape?

Can I wire both receivers into the M3s even though they only have one set of binding posts?

Worst case, is there such a beast as a speaker switch box that I can run both receivers to and then select which one to run into the M3s?

Not in a position to do anything expensive.
Posted By: Ken.C Re: Can I connect 2 amps to my M3s? - 12/19/10 04:31 PM
Nope. You'll blow up the receivers.
Posted By: Ken.C Re: Can I connect 2 amps to my M3s? - 12/19/10 04:37 PM
I'm not clear why you would want to plug both in, actually. If your Sherwood is connected to the M3s in the other room, and running off of the pre-outs of hte Sony, why would you need both plugged into the speakers?
Posted By: terzaghi Re: Can I connect 2 amps to my M3s? - 12/19/10 04:40 PM
I think he wants to use the ipod and xm ability of his sony receiver on the m3's which are going to be in another room.

If your sony has a second zone in which you can assign to the m3's and run speaker wire into the m3 room then you could go that route. The sherwood receiver would not get used at all in this scenario.

Is the sherwood a receiver or an amp?

Posted By: Ken.C Re: Can I connect 2 amps to my M3s? - 12/19/10 04:43 PM
Sure, but if he's running the Sherwood off of the pre-outs, which means that it plays anything the Sony is playing (assuming using the pre-outs doesn't turn off the Sony's amps), then both don't need to be plugged into the M3s.
Posted By: terzaghi Re: Can I connect 2 amps to my M3s? - 12/19/10 04:55 PM
yeah, either way only one device needs to be connected to the m3's.
Posted By: jakewash Re: Can I connect 2 amps to my M3s? - 12/19/10 08:53 PM
There are dual input speaker selector boxes out there.

You should still be able to run the iPod on the Sherwood with an iPod dock hooked up to the Sherwood's cd input; you just lose some of the controlability.

I am not familiar with XM radio as to whether or not this would also work in the same manner.
Posted By: FATMANBLOWFISH Re: Can I connect 2 amps to my M3s? - 12/19/10 09:17 PM
Assuming both receivers have tape monitor in/out, connect the Sony "tape out" to the Sherwood "tape in" with a long RCA cable.

Select "tape monitor" on the Sherwood and you will have whatever the Sony is playing through it.

If it causes hum, search through the forums for many different solutions.

cheers
Posted By: stermarc Re: Can I connect 2 amps to my M3s? - 12/20/10 04:45 AM
Right, my bad. They both are receivers, Sony STR DH700 and Sherwood RX 4103.

Now that I study the manual I don't see a specific pre-out port on the Sony, but there are in and out ports for CD (ie. to a CDR apparently) and for VCR. The Sherwood does have the typical Tape in and out ports.

So the best answer is to use the Sony CD out port to the Sherwood Tape in port maybe? (or Sony VCR out to Sherwood tape in)?

I'm guessing from the responses maybe I shouldn't connect both receivers to the M3s? ie. speaker wires from each receiver both threaded into the M3 plugs?
Posted By: terzaghi Re: Can I connect 2 amps to my M3s? - 12/20/10 04:49 AM
Correct. If u connected both receivers directly to the speakers you would likely damage them.
Posted By: JohnK Re: Can I connect 2 amps to my M3s? - 12/20/10 05:25 AM
Marc, the reason that the wires from both receivers shouldn't be attached to the same speaker terminal is that the power doesn't know that it's supposed to go only into the speaker. Instead, it'll also run up the other wire into the output transistors of the other receiver, damaging them.
Posted By: terzaghi Re: Can I connect 2 amps to my M3s? - 12/20/10 12:56 PM
Ah, good call. I should have known there was more at risk then just the speakers.
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