A:AnswerI tried everything to fix the noise coming from my two Bose subwoofers without success. Both were making the same noise until I moved the power cable that was passing underneath both subwoofers. The power cable has to go straight back without passing by one side or underneath the box. This way, the two boxes never made the noise again.
A:AnswerThe Bass Module 700, Soundbar 700, and Surround Speaker's power requirements are all auto-sensing 100-240 V, 50/60 Hz. For standby power consumption, please see https://bose.life/2NzhCSQ.