Speaker buzz with SS amplifier, input disconnected


If a buzz/hum is present from my loudspeakers with solid state Monoblock inputs disconnected, what are the likely possibilities accounting for the buzz. Do toroidal transformers ever transmit transformer noise to the loudspeakers?
I thought ground loops were more or less eliminated with amplifier inputs disconnected. Buzz/hum is present in both loudspeakers(with inputs disconnected), more pronounced in one. Thank you for your suggestions!

Amplifier. Gamut M250
Speaker. KEF Blade
audiobrian

Showing 1 response by arh

Most amps will make some kind of noise when there inputs are disconnected. When you reconnect the inputs is the noise gone? If gone there is nothing to worry about
Alan