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Suggestions: Two Input Mixing Device to share rear surrounds with receiver and Sonos?

1,969 258 January 9, 2017 at 05:52 PM Amazon
Hi folks,

I'm trying to find a device that will allow me to mix two different input sources to share a pair of rear surround speakers. The two inputs would be:
  • The A/V Receiver Rear Surrounds of a 5.1 sound system, so two amplified channels
  • A Sonos Connect Amp, so two amplified channels

The two inputs could be on at the same time if by chance I want to listen to whole house audio while also playing something on the TV (for example if I wanted sports on while listening to music around the house). It would also be nice if this device used very little power since it would be on the entire time. Any suggestions?

Would one of these devices work?
  1. https://www.amazon.com/gp/product/B00L2TUFLM/
  2. https://www.amazon.com/gp/product/B003M8NVFS/
  3. https://www.amazon.com/gp/product/B00L2TUFLM/
(It's possible that the keywords I'm using in my own research isn't correct and the items above could be way off base.)

I posted this at AVSForum but didn't get any responses so I thought I'd try my luck here.
About the OP
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Joined Dec 2003
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> bubble2 32,000 Posts
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The Raddish
01-09-2017 at 06:14 PM.
01-09-2017 at 06:14 PM.
Nope.

Search Stereo Speaker Selector Switch

https://smile.amazon.com/Ancable-...B01M5B0N25

^^^ example
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Joined Sep 2003
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> bubble2 1,969 Posts
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Original Poster
wildta
01-10-2017 at 11:49 AM.
01-10-2017 at 11:49 AM.
Thanks Raddish! Have you seen anything capable of combining two amplified sources into a single amplified output?

Quote from The Raddish :
Nope.

Search Stereo Speaker Selector Switch

https://smile.amazon.com/Ancable-...B01M5B0N25 [amazon.com]

^^^ example
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Joined Jul 2003
L10: Grand Master
> bubble2 35,473 Posts
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DC
01-10-2017 at 12:41 PM.
01-10-2017 at 12:41 PM.
Quote from wildta :
Thanks Raddish! Have you seen anything capable of combining two amplified sources into a single amplified output?
Typically you have several unamplified sources that combine into a switched amplified output.


Source1
Source2
Source3 >> Choose a Source >> Output Amp >> (Speakers A, Speakers B, etc...) Choose any and all speakers

Otherwise you have 2 or more independent systems with 2 or more independent sources and outputs.

Which doubles or triples or... your costs.
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Joined Sep 2006
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> bubble2 19,431 Posts
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Fallacy
01-10-2017 at 02:35 PM.
01-10-2017 at 02:35 PM.
I'm still not clear on what you're trying to do. It seems you came up with a solution, but I don't understand the problem (if you describe the problem, a better solution might be found)

You have 1 pair of rear speakers, right?
You're trying to have multiple input sources to them, right?
The sources could be on at the same time, this is where I'm lost. How do you plan to listen to both the TV via 5.1 AND radio at the same time on the same speakers?

I'd go with a switch, as Raddish suggested. And use one source at a time.
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Joined Jul 2003
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> bubble2 35,473 Posts
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DC
01-10-2017 at 03:17 PM.
01-10-2017 at 03:17 PM.
Quote from Fallacy :
I'm still not clear on what you're trying to do. It seems you came up with a solution, but I don't understand the problem (if you describe the problem, a better solution might be found)

You have 1 pair of rear speakers, right?
You're trying to have multiple input sources to them, right?
The sources could be on at the same time, this is where I'm lost. How do you plan to listen to both the TV via 5.1 AND radio at the same time on the same speakers?

I'd go with a switch, as Raddish suggested. And use one source at a time.
It seems he want's different zones to be able to hear different things sometimes.
Living room to hear the TV (kids playing a movie), but dining room and back patio to hear the radio as guests are over.

Dontknow
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Joined Sep 2003
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> bubble2 1,969 Posts
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Original Poster
wildta
01-10-2017 at 03:33 PM.
01-10-2017 at 03:33 PM.
I haven't fully set up my system yet but this is my intention:

Receiver has whatever sources inputted into it to play those sources through a 5.1 speaker setup. Sources so far are:
Nvidia Shield
AFTV
XBox

I want the ability to watch the TV using 5.1 as well as play whole house audio via Sonos but only on the rear two channels of my 5.1 setup. If necessary, I would be fine if the Sonos played on all 5.1 speakers combined with whatever is playing on the TV as well. Basically the ability to listen to a football game but also music at the same time on a 5.1 setup. Is this possible? Hopefully that's a little more clear. Appreciate all the feedback thus far!
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Joined Sep 2006
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> bubble2 19,431 Posts
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Fallacy
01-10-2017 at 03:34 PM.
01-10-2017 at 03:34 PM.
Quote from DC :
It seems he want's different zones to be able to hear different things sometimes.
Living room to hear the TV (kids playing a movie), but dining room and back patio to hear the radio as guests are over.

But both can't be on at the same time! From the OP "The two inputs could be on at the same time".

Unless he changes the TV to 2.1 stereo, but then the rear channels are off. You can't listen to the TV and play music at the same time through the same set of speakers. (well maybe you "technically" can, but both wont be comprehend-able)
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Joined Sep 2003
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> bubble2 1,969 Posts
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Original Poster
wildta
01-10-2017 at 03:38 PM.
01-10-2017 at 03:38 PM.
Quote from Fallacy :
But both can't be on at the same time! From the OP "The two inputs could be on at the same time".

Unless he changes the TV to 2.1 stereo, but then the rear channels are off. You can't listen to the TV and play music at the same time through the same set of speakers. (well maybe you "technically" can, but both wont be comprehend-able)
The more I look into this, the more I think it's not possible because so far I haven't found anything that would be able to combine/mix two amplified sources. There are definitely products that will mix line level sources (aka mixer) but not to the extent of a 5.1 setup for TV combined with 2 channels for Sonos. It seems like I'm kind of stuck with either TV as one source or Sonos as the other but not both at the same time.
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Joined Sep 2006
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> bubble2 19,431 Posts
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Fallacy
01-10-2017 at 03:42 PM.
01-10-2017 at 03:42 PM.
Quote from wildta :
I haven't fully set up my system yet but this is my intention:

Receiver has whatever sources inputted into it to play those sources through a 5.1 speaker setup. Sources so far are:
Nvidia Shield
AFTV
XBox

I want the ability to watch the TV using 5.1 as well as play whole house audio via Sonos but only on the rear two channels of my 5.1 setup. If necessary, I would be fine if the Sonos played on all 5.1 speakers combined with whatever is playing on the TV as well. Basically the ability to listen to a football game but also music at the same time on a 5.1 setup. Is this possible? Hopefully that's a little more clear. Appreciate all the feedback thus far!
No. Pretty sure this is not possible. You can't drive the same speakers from two [active] sources at the same time. Also, I'm not sure how it'd sound. You'd have commentary and music at the same time through the same speakers.

Think of it this way, you have an amp, connected to speakers connected to another amp. If one amp (i.e. receiver) is much more powerful than the other amp (sonos), what's stopping it from burning the other one out (well besides fuses)? They're directly connected in your example.
While there are ways to bridge identical amplifiers, which also changes the speaker impedance, I don't think there's an easy way to do it for two different amps.
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Last edited by Fallacy January 10, 2017 at 03:46 PM.
Joined Sep 2003
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> bubble2 1,969 Posts
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Original Poster
wildta
01-10-2017 at 03:46 PM.
01-10-2017 at 03:46 PM.
Yup! you're right it can't be amplified. It'd have to be line level. So I suppose I could get some type of decoder to breakout my TV sources to 5.1 channels and then mix from there but it's beginning to sound convoluted and not worth the degradation of the sound via a decoder.

I suppose another solution is to just add two more speaker channels dedicated to Sonos but I'm done cutting holes in my ceiling. Ah well! Thanks all!
Quote from Fallacy :
If one amp is much more powerful than the other amp, what's stopping it from burning the other one out (well besides fuses)? They're directly connected in your example.
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Joined Sep 2006
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> bubble2 19,431 Posts
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Fallacy
01-10-2017 at 03:47 PM.
01-10-2017 at 03:47 PM.
Quote from wildta :
Yup! you're right i can't be amplified. It'd have to be line level. So I suppose I could get some type of decoder to breakout my TV sources to 5.1 channels and then mix from there but it's beginning to sound convoluted and not worth the degradation of the sound via a decoder.

I suppose another solution is to just add two more speaker channels dedicated to Sonos but I'm done cutting holes in my ceiling. Ah well! Thanks all!
2 words: Wireless speakers Wink
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Joined Sep 2003
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> bubble2 1,969 Posts
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Original Poster
wildta
01-10-2017 at 04:04 PM.
01-10-2017 at 04:04 PM.
Quote from Fallacy :
2 words: Wireless speakers
If I weren't a neat freak who always wants everything hidden/tucked away, I'd be all over that solution. I got a soundbar custom made to match the color and width of my LG OLED and then installed two ceiling rears. My sub is wireless though and hidden beneath the sofa. ;-)

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Joined Dec 2003
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> bubble2 32,000 Posts
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The Raddish
01-10-2017 at 09:11 PM.
01-10-2017 at 09:11 PM.
Quote from wildta :
The more I look into this, the more I think it's not possible because so far I haven't found anything that would be able to combine/mix two amplified sources. There are definitely products that will mix line level sources (aka mixer) but not to the extent of a 5.1 setup for TV combined with 2 channels for Sonos. It seems like I'm kind of stuck with either TV as one source or Sonos as the other but not both at the same time.
Okay, so I'm like totes confused.

My receiver is a 7.2receiver.

My rear two channels are electable.

So, I have a 5.2 in my living room, with the last 2 channels selectable for whatever I choose. I use either my rear channel ceiling speakers or my back porch depending on my needs for the day.

You need to be more specific in your requirements for better recommendations.
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Joined Mar 2009
Schrödinger's Frog
> bubble2 19,435 Posts
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Frogstar
01-11-2017 at 06:59 AM.
01-11-2017 at 06:59 AM.
Quote from wildta :
If I weren't a neat freak who always wants everything hidden/tucked away, I'd be all over that solution. I got a soundbar custom made to match the color and width of my LG OLED and then installed two ceiling rears. My sub is wireless though and hidden beneath the sofa. ;-)
You're using a soundbar, a receiver, and have dedicated rear channel speakers?
You're weird.
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