Was there any hint of trouble prior to complete failure, such as distortion or odd noises? Had both speakers failed at the same time? Are there any signs of physical damage?

Really appreciate you replying. The first set of speakers had a clipping fault on both which lead be to ask if the speakers and Powernode 2i was compatible which I was told they were…… this time they both seemed to lose bass and higher volume levels overnight and at the same time.

That could be a couple things, your amplifier has too much power and is damaging the speakers or you are driving a smaller amp too hard and the distortion that causes is destroying the speakers. The second is much more likely.

Also are you sure they are Architectural or Outdoor speakers labeled as “Sonos by Sonance”. I ask this as Sonance makes their own brand of speakers that resemble those found on the Sonos website. Also if purchased from Sonance and you are seeking some type of restitution (not saying you are) you’d have to go to Sonance.

Hi, no they are definitely Sonos External speakers 130w 8 ohms. I am interested that they may have been driven too hard by the Bluestream Powernode 2i 60 Watts x 2 into 8 ohms

Don't know that amplifier, you might look into the speaker protection features it offers.

Pushing a light duty amplifier into clipping and distortion in search of more volume than it can safely provide kills a lot of good quality speakers.

Is there a way to limit this, to stop people blasting out sound and blowing speakers?

You might try a wall mounted volume control between the Bluesound Powernode 2i and the speakers with a locking cover. The volume control will set the limit no matter how far they push the volume control on the amp.

Not sure if the old Connect offers a volume limit setting in the App but that should protect the speakers if it does.

Does the external amp not offer anything?