And that is probably my biggest gripe. The JBL speaker is one of the best stereo BT devices you can buy. Alexa Input worked intermittently with it. It was nowhere near as reliable and responsive as using Bluetooth with a Samsung Galaxy S10+. And the sound quality was adequate at best. Unfortunately, we did not have another speaker to test – that is on the list!
Post review note: We have briefly tested a Bose SoundLink Revolve+. This is a mono 360° speaker with both Bluetooth and 3.5mm AUX inputs. The sound quality on AUX and Bluetooth is better leading me to believe the Echo Input does not support stereo output nor does it like Multi-point Bluetooth speakers. We will report if we find more information.