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Hi,

 

I have installed the above setup within a large kitchen diner which is essentially one room. I have a Sonos Amp and 3 pairs of Sonos architectural speakers.

 

I want the flexibility to turn off 2 pairs of speakers when just watching TV so installed them through an Audiflow 3S-3Z speaker switch. 3 Way Smart Speaker Switch | Audioflow

 

I understand that the Sonos Amp can take 3 pairs of architectural speakers in parallel but the Audioflow speaker switch has impedance matching so when I have all 3 speakers on, it is putting speaker pair A in parallel with Pair B&C in Series). This is resulting in the volume of Speaker pair C been significantly quieter than Pair A. (This volume difference is so noticeable that standing under speaker pair C which is over 10M from Pair A, I am still hearing more vocals from Pair A!)

 

This would not be too much of a problem if Speaker set C was in a different room but in the same room its so bad that its pointless having the third pair of speakers!. For clarity when I put Speaker set C on alone and switch off set A&B, the volume jumps up to the expected level. The same applies if any combination of 2 pairs of speakers are selected - the volumes are fine.

 

I’m sure someone must have encountered this before and keen to know if there was a solution. I’m so disappointed at the moment

You probably need a speaker switch that does impedance matching, not just rewiring the speaker connections. An alternative would be impedance matching volume controls.

I don’t have any suggestions as to which brands, hopefully others here will.

You probably need a speaker switch that does impedance matching, not just rewiring the speaker connections. An alternative would be impedance matching volume controls.

I don’t have any suggestions as to which brands, hopefully others here will.

@aer8  did state that the Audioflow has impedance matching, but I would be bold and buy a second amp for the pair of speakers he watches TV with.

When using the Sonance architectural speakers with the AMP you don't need to worry about impedance matching. Simply wire two pairs of the speakers to one output of the switchbox and operate it as a two way switch without impedance matching.

When using the Sonance architectural speakers with the AMP you don't need to worry about impedance matching. Simply wire two pairs of the speakers to one output of the switchbox and operate it as a two way switch without impedance matching.

Thanks for this response - I contacted Audiflow and that was their exact solution!

Wire Speaker pair A direct to the back of the Amp as These will be on at all times. Wire Speakers B&C to the Audioflow switch disabling the third channel. This results in all 3 pairs of speakers been in parallel and the sound volume is matched across the room.

 

Thanks for the input all.

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