Can the Amp and Connect be told to output mono rather than stereo? Using with mono ceiling speakers in bathroom and kitchen.

  • 16 November 2012
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I disagree. Having mono output makes it a more versatile amp. Connect amp is a great product. It's bridgeable to 4 speakers. Reading other posts, mono is highly desired by many. I'm not looking to debate others, just hoping to have this feature added.


Having mono output allows you to do one thing and one thing only; to use a single Connect unit where you would otherwise use two. That is not the type of "versatility" Sonos profits from. It's not rocket science to understand the economics behind this issue, nor the reason why it isn't going to be "fixed" (not that it is broken in the first place). If you want two channel output through a single speaker from a Sonos Connect/Connect:Amp, buy single stereo speakers that are fit for that purpose.


I currently live in a condo rental with in ceiling speakers. One in bathroom, one in bedroom. I also have two small outdoor speakers not facing in the same direction on my patio. I have four reasons why a 4-Ohm stable amp can drive 4 speakers (8-Ohm each) with mono sound. So now I should replace 4 speakers in my rental due to a signal output setting?

I currently live in a condo rental with in ceiling speakers. One in bathroom, one in bedroom. I also have two small outdoor speakers not facing in the same direction on my patio. I have four reasons why a 4-Ohm stable amp can drive 4 speakers (8-Ohm each) with mono sound. So now I should replace 4 speakers in my rental due to a signal output setting?


I'm not sure what you want me to say. Anecdotal stories about your personal circumstances are not applicable to corporate decisions on how to maximize profits. Fact is, if Sonos allowed mono output, every installer in the world would cut costs by using a single Connect:Amp to drive 4 mono speakers in separate rooms instead of 2 Connect:Amps. Your situation doesn't change that fact.

By all means I am not trying to debate you or anyone else who may try to justify lack of mono function. I understand your point about "corporate greed" and selling more units. In your example, 2 Connect:Amps are NOT a solution. Even buying a dedicated amp for each speaker is not a solution, so more Connect:Amps do not help me get full sound for each zone.


Again, I'm not sure what you want me to say. Your particular circumstances are unfortunate.

By the way, one person's "corporate greed" is another person's "corporate survival". Sonos employs people too. I hear they even pay them a salary.
Sigh.

If driving a single speaker from a Connect:Amp is all you want, maybe you "installers" should read up on a little thing called a single point stereo speaker.
I found this. Seems like it will work.
https://www.sweetwater.com/store/detail/pcDI--whirlwind-pcdi-2-channel-passive-a-v-direct-box
https://www.sweetwater.com/store/detail/XRF105--hosa-xrf105-5-foot
You resurrected a 10 month long dead thread for that? Business must be bad. :?
You resurrected a 10 month long dead thread for that? Business must be bad. :?

Not at all. I resurrected it because I just ran across a situation where I have a budget-minded client where this situation applies and had to reach out to Sonos to find out this is the case. AND it's been out there this long ..still unresolved.
Just trying to call Sonos' attention back to it. So thanks for noticing!
Userlevel 7
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Seems strange that Sonos can do mono for play 1, One and 3 speakers but can't push it to the Connect and Amp lines too.

If I was the Community manager I'd ask someone at the next staff meeting about that.

Of course after a few questions like that I'd probably be as unwelcome at Sonos meetings as I was at my old job.
Userlevel 7
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The one thing I don't like about my Gen 2 Play 5 is the missing headphone jack, I didn't do my homework and bought it instead of finding a Gen 1 that had the jack. I guess it is good business to remove rarely used features but it is frustrating.

If I was an installer I'd just specify a Connect and add an external amp that had a stereo to mono switch.
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Sigh.

If driving a single speaker from a Connect:Amp is all you want, maybe you "installers" should read up on a little thing called a single point stereo speaker.



Single Point Stereo Speakers can be a solution, like in new construction (I'm doing a house now with SPSS in 2 different small rooms, each with their own Connect Amp.). But SPSS require 4-conductor wire (left and right channels). Very rarely (never) do you find 4-conductor wire ran to a "single point" in old construction (I've never seen it in any of the houses I've worked on.). Mono is the answer.
Stop repeating your same drivel, it doesn't apply here where people are looking for a solid solution.
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I imagine they don't allow it because installers would be using a single Connect:Amp with mono speakers to cover four rooms, instead of using two Connect:Amps. Sonos has never made it easy to cut corners, for instance, there have never been headphone jacks on units lower in price than the Connect.


Only if the home owner wanted the same volume in these 4 rooms or wanted to use antiquated in-wall volume controllers. 4 Connect Amps would be the solution in your scenario, so that the home owner could easily control the volume of each of the 4 rooms through the Sonos App.
It is not about cutting corners. It is about doing what the home owner wants or, in old construction, what we can with what we are given to work with.
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Which brings us back to my earlier suggestion above, a Connect and external amp that can mix the Stereo input to mono for the speaker(s.)
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Which brings us back to my earlier suggestion above, a Connect and external amp that can mix the Stereo input to mono for the speaker(s.)

Yes, that is one solution to make the existing Sonos mono. But the majority of us here are making our case to Sonos to put the Mono functionality in their Amps so that we don't have to buy 3rd-party equipment and can keep the configuration simple (less equipment).
Badge +1
SONOS SOLVED THE MONO ISSUE!!!

The new Sonos Amp says this in its Specs: "Speaker output connections: Banana plugs (2) capable of stereo or dual mono sound." https://www.sonos.com/en-us/shop/amp.html (click the link and then "Specs")

Yes! Finally a solution!

Mahalo to all who helped Sonos understand the need for mono!
Aloha!
SONOS SOLVED THE MONO ISSUE!!!

The new Sonos Amp says this in its Specs: "Speaker output connections: Banana plugs (2) capable of stereo or dual mono sound." https://www.sonos.com/en-us/shop/amp.html (click the link and then "Specs")

Yes! Finally a solution!

Mahalo to all who helped Sonos understand the need for mono!
Aloha!


Excuse my ignorance but does Dual Mono mean that you cannot drive just one mono speaker from the new Amp? I am one of the many many people who has single, mono speakers in a variety of bathrooms and I was just about to purchase a bunch of Sonos kit to drive them but if the new Amp can't drive a single monos speaker I'll have to use another manufacturer's solution. Thanks in advance!
SONOS SOLVED THE MONO ISSUE!!!

The new Sonos Amp says this in its Specs: "Speaker output connections: Banana plugs (2) capable of stereo or dual mono sound." https://www.sonos.com/en-us/shop/amp.html (click the link and then "Specs")

Yes! Finally a solution!

Mahalo to all who helped Sonos understand the need for mono!
Aloha!


Excuse my ignorance but does Dual Mono mean that you cannot drive just one mono speaker from the new Amp? I am one of the many many people who has single, mono speakers in a variety of bathrooms and I was just about to purchase a bunch of Sonos kit to drive them but if the new Amp can't drive a single monos speaker I'll have to use another manufacturer's solution. Thanks in advance!


No, it would be able to do that. Both the Left and Right speaker ports on the amp will produce the same mono channel. If you only want one mono speaker, than you only would connect a single side.

I would note though that you might want to consider using a single amp for two or more bathrooms, if you are ok with them having the source and adding external volume controls. Alternatively, sticking with the single speaker per amp plan, I'd consider getting stereo input ceiling speakers.


But would that not eventually blow the channel to which you had not connected a speaker?
Badge +1
SONOS SOLVED THE MONO ISSUE!!!

The new Sonos Amp says this in its Specs: "Speaker output connections: Banana plugs (2) capable of stereo or dual mono sound." https://www.sonos.com/en-us/shop/amp.html (click the link and then "Specs")

Yes! Finally a solution!

Mahalo to all who helped Sonos understand the need for mono!
Aloha!


Excuse my ignorance but does Dual Mono mean that you cannot drive just one mono speaker from the new Amp? I am one of the many many people who has single, mono speakers in a variety of bathrooms and I was just about to purchase a bunch of Sonos kit to drive them but if the new Amp can't drive a single monos speaker I'll have to use another manufacturer's solution. Thanks in advance!


No, it would be able to do that. Both the Left and Right speaker ports on the amp will produce the same mono channel. If you only want one mono speaker, than you only would connect a single side.

I would note though that you might want to consider using a single amp for two or more bathrooms, if you are ok with them having the source and adding external volume controls. Alternatively, sticking with the single speaker per amp plan, I'd consider getting stereo input ceiling speakers.


But would that not eventually blow the channel to which you had not connected a speaker?


I don't see any requirements from Sonos that you have to use both Mono outputs.
SONOS SOLVED THE MONO ISSUE!!!

The new Sonos Amp says this in its Specs: "Speaker output connections: Banana plugs (2) capable of stereo or dual mono sound." https://www.sonos.com/en-us/shop/amp.html (click the link and then "Specs")

Yes! Finally a solution!

Mahalo to all who helped Sonos understand the need for mono!
Aloha!


Excuse my ignorance but does Dual Mono mean that you cannot drive just one mono speaker from the new Amp? I am one of the many many people who has single, mono speakers in a variety of bathrooms and I was just about to purchase a bunch of Sonos kit to drive them but if the new Amp can't drive a single monos speaker I'll have to use another manufacturer's solution. Thanks in advance!


No, it would be able to do that. Both the Left and Right speaker ports on the amp will produce the same mono channel. If you only want one mono speaker, than you only would connect a single side.

I would note though that you might want to consider using a single amp for two or more bathrooms, if you are ok with them having the source and adding external volume controls. Alternatively, sticking with the single speaker per amp plan, I'd consider getting stereo input ceiling speakers.


But would that not eventually blow the channel to which you had not connected a speaker?


I don't see any requirements from Sonos that you have to use both Mono outputs.


It says in the spec 'dual mono' which seems to imply that it needs to drive two speakers, one on each channel, both receiving a mono signal so they can go in separate rooms. So I called Sonos support and asked them. They put me through to a tech guy who went off and did some research and came back and said, and I quote, "You can do it* but I wouldn't recommend it because it might shorten the life of the amp."

* 'it' being to wire one channel of the amp only, to one mono speaker, and set the amp to mono. In other words the spec does indeed mean 'dual mono' i.e. it is intended that each channel of the amp is wired to a separate speaker but the same signal is sent to both.

SO it seems that Sonos still has no solution to this. I'm going elsewhere: after having been an early adopter of Sonos and having installed over fifteen units in various places, and with a renovation project requiring another thirteen, I am no longer able to make their system work for me...
Badge +1
SONOS SOLVED THE MONO ISSUE!!!

The new Sonos Amp says this in its Specs: "Speaker output connections: Banana plugs (2) capable of stereo or dual mono sound." https://www.sonos.com/en-us/shop/amp.html (click the link and then "Specs")

Yes! Finally a solution!

Mahalo to all who helped Sonos understand the need for mono!
Aloha!


Excuse my ignorance but does Dual Mono mean that you cannot drive just one mono speaker from the new Amp? I am one of the many many people who has single, mono speakers in a variety of bathrooms and I was just about to purchase a bunch of Sonos kit to drive them but if the new Amp can't drive a single monos speaker I'll have to use another manufacturer's solution. Thanks in advance!


No, it would be able to do that. Both the Left and Right speaker ports on the amp will produce the same mono channel. If you only want one mono speaker, than you only would connect a single side.

I would note though that you might want to consider using a single amp for two or more bathrooms, if you are ok with them having the source and adding external volume controls. Alternatively, sticking with the single speaker per amp plan, I'd consider getting stereo input ceiling speakers.


But would that not eventually blow the channel to which you had not connected a speaker?


I don't see any requirements from Sonos that you have to use both Mono outputs.


It says in the spec 'dual mono' which seems to imply that it needs to drive two speakers, one on each channel, both receiving a mono signal so they can go in separate rooms. So I called Sonos support and asked them. They put me through to a tech guy who went off and did some research and came back and said, and I quote, "You can do it* but I wouldn't recommend it because it might shorten the life of the amp."

* 'it' being to wire one channel of the amp only, to one mono speaker, and set the amp to mono. In other words the spec does indeed mean 'dual mono' i.e. it is intended that each channel of the amp is wired to a separate speaker but the same signal is sent to both.

SO it seems that Sonos still has no solution to this. I'm going elsewhere: after having been an early adopter of Sonos and having installed over fifteen units in various places, and with a renovation project requiring another thirteen, I am no longer able to make their system work for me...



"dual mono sound" didn't imply to me that you HAVE to connect 2 speakers. The same Sonos Amp specs also say "Dual Ethernet ports" and you don't HAVE to use both Ethernet ports. Maybe Sonos used poor wording in their specs and it should be edited, or maybe they didn't. I'll reach out to my Sonos Rep and let them dig around in Sonos to see if they get the same answer you got. I hope that tech guy you spoke to is wrong. If it turns-out that you HAVE to install at least 2 mono speakers, that will limit my installs also.
BTW, what is the name of that tech guy at Sonos you spoke to (I want to make sure my Rep at Sonos talks to someone else...Tier 2 or higher)?
Mahalo
I had a follow up email, pasted here, from Sonos support UK:

Thanks for calling in today. As discussed, we do not recommend using the Amp in Single Mono as it could potentially shorten the lifespan of the unit. I will however pass on your feedback to the development team, as the more people that get behind this request - the more likely it is to be implemented.

If you have any other questions, please don't hesitate to reply to this email. If you need to call back in regarding this issue, please quote the case number found at the bottom of this email.

Kind Regards,
John P