Hum and vibration from amp

Before I moved in to present house all my amps were working perfectly. Bryston, Marantz. Now the Bryston has a very audible hum and slight vibration. Same with the Marantz.Each one has a 3 prong power cord. When I plugged in my Carver the hum and vibration was gone...this has a 2 prong plug. Is this something to do with wiring in the house...Polarization, grounding etc. If so how do I check. This is very disturbing to me because it took me a long time to be able to afford these amps. Hate to ruin them!
Sincerely
kevino909

Furman Sound: Passion for Protection and Performance

Furman Sound: Passion for Protection and Performance

This man is electric. More than electric, this man is electricity. The strongest, purest current snaps through him and charges the entire room. We crowd around, unable to fully maintain his flow, but also unable to withdraw. John Atkinson and I settle in closest, occupying the front row. JA follows securely along, constant flickers of acknowledgement and wonder emerge, illuminated moments of understanding and interest. At the same time, however, running in the opposite direction, I feel almost as though I'm being rude — too deeply occupied at scribbling these notes, my pen powered by his words and ideas, moving faster across the page than I want it to go, I can't even look up to meet his eyes. And his eyes, these ice blue darts, they're the blue of a glowing front panel. The man is plugged in.

Sonic match dilemma: $2K Kitchen Speakers and Wilsons in the living room

Forums

I am adding a system to my kitchen. The kitchen is semi-open, as is the living room, with an entry hall between the rooms. So sound from the kitchen can impact sound in the living room and vice versa. In the living room I have a pair of Wilson Watt2s Puppy3s. My budget for kitchen speakers is in the order of $1000 to $3000, and I prefer not to have floor-standing in this room. Which kitchen speakers would be best given the Wilsons in the living room?

Thanks!

Slim Devices Transporter vs DAC vs Processor/Pre-Amp

In my living room I currently have a pair of Wilson Watt2 Puppy3 's, with a mid-90s era Fosgate pre-amp and Hafler amp. I'm planning to rip my CDs to an Infrant NAS using FLAC and feed them into the living room using Slim Devices. I need help deciding between the following three alternatives:

Hybrids Are Hot

Hybrids Are Hot

"Recent advances in solid-state output devices and other components have opened up design possibilities never previously available," Audio Research's Terry Dorn explained. "And <I>that</I> led to our developing the Hybrid Drive HD220 stereo power amplifier ($8995)."

Advertisement
Advertisement
Advertisement