To me, sounds like an amplifier fault. You want the power supply in your amp to deal with this.
I once bought a DIY valve amp from someone, massive two box thing. Every time the fridge thermostat ticked over, you heard it out of the speakers. I bought a Meridian amp and this problem simply didn't exist (in the same house, with the same wiring and fridge).
To be on the safe side, when I had this place rewired I had a separate circuit put in for the hifi.
To me, sounds like an amplifier fault. You want the power supply in your amp to deal with this.
I once bought a DIY valve amp from someone, massive two box thing. Every time the fridge thermostat ticked over, you heard it out of the speakers. I bought a Meridian amp and this problem simply didn't exist (in the same house, with the same wiring and fridge).
To be on the safe side, when I had this place rewired I had a separate circuit put in for the hifi.