The speaker maker’s holiday quarter forecast is lifting its stock, but fallout from last spring’s app fiasco still lingers.

With a sleek design and premium sound, Era 100 Pro brings simplified setup with PoE+, versatile orientation via a pro-grade ...

The Sonos Era 100 Pro offers PoE+ setup, flexible pro-grade mounting, and advanced zone control for large-scale installations ...

To check, remove the power from the amplifier and see whether the problem goes away. There are three types of amplifier – masthead, set-back and distribution. All these need a power supply to work.