Speaker buzz with SS amplifier, input disconnected

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

The noise through my Blades is unchanged with inputs connected or disconnected to the Gamut monoblocks. It is more of a buzz than hum, and is audible about 3 ft from loudspeakers. Speakers are not biamped and noise persists when plugged into power conditioner, DC Blocker or
cheater plug used. Can an amplifier itself transmit buzz into a loudspeaker?
Gamut claims it must be dirty AC, but I don't believe this to be the case?
When I use my tube amplifier, no hum or buzz evident.
Thanks again to to those responding.
Brian

Audiobrian,

Buy a pair of shorting plugs for the inputs of the Gamut monoblocks. If you still have the buzzing sound heard though the speakers try plugging the amps directly to the wall outlet and then check again for buzz.

If the buzz still exists.
Which Gamut monoblocks do you have? Are the amps enclosed in the same chassis unit or entirely separate units? If the amps are housed in the same chassis unit the problem could be the monoblocks unit.

It is possible some electrical appliance or device in your home could be causing the problem. It could even be a problem somewhere in the electrical wiring like a loose connection that is slightly arcing. Only way to rule out the mains power is to hire someone with a background in Power Quality and connect a scope to the mains of your home.

This sounds like an internal layout problem to me. It is true however that with an open input (nothing connected) that there will be a greater amount of noise present. But that should be gone with your preamp connected.

Now one exception may be that your interconnect cable is responsible for some of the buzz. So it is a good idea to try a different cable before blaming the amp!

Thanks Attmasphere/RK
I've tried a couple of interconnects without change. I believe you are right about an internal layout problem. Both monoblocks buzz through the loudspeakers, one louder than the other, inputs either connected or not.
Would you kindly expound on the type of layout problem which might result in this speaker buzz. Can a noisy toroid transmit buzz to loudspeakers etc
I know most talk of noisy transformers in the chassis without transmission to loudspeakers.
Many thanks for your response!