Totally agree with Lewm. I battled a low frequency sound like motor-boating. In my Aesthetix Janus eclipse. Narrowed it down to my phono path. Went ultra low-noise amperex and telefunken tubes. Beautiful sound upgrade but the noise was still there. Upgraded phono cable to AW Leopard. Better sound-again but still that awful noise.
long story short the RFI was coming from a Wifi access point that I had placed placed on top of an ASC bass trap, i e exactly the same height as my cartridge and about 5 feet away. I moved the WAP across the room on the floor and boom! Problem solved and I got better SQ in the process. And obviously saved money over a new phono stage.
BTW, Krell is coming out with a new phono stage that I had in my system for about a month. It was incredible and I think in the $4,500 range. Whatever you get try your best to demo with your gear in your room. That’s my 2 cents worth.
long story short the RFI was coming from a Wifi access point that I had placed placed on top of an ASC bass trap, i e exactly the same height as my cartridge and about 5 feet away. I moved the WAP across the room on the floor and boom! Problem solved and I got better SQ in the process. And obviously saved money over a new phono stage.
BTW, Krell is coming out with a new phono stage that I had in my system for about a month. It was incredible and I think in the $4,500 range. Whatever you get try your best to demo with your gear in your room. That’s my 2 cents worth.