Thought I'd share two worth while additions in the past one month that delivered :
1) Audioquest Niagra 3000 : I recently added a Audioquest Niagara 3000 to power only the sources in the system. Have the power amps still direct to wall. Was'nt expecting any sonic improvements, but wanted some protection for the gear, as I've had some nasty blows in the past. My trusty PS Audio P1200 regenerator stepped in several times with fuse blows to save my kit, till it finally gave up the ghost in one last battle but still saved the kit
So some sort of protection was an absolute must with the crappy power that I have. So plugged it in with fingers crossed, hoping that the sonic degradation if any would be endurable. But what a pleasant surprise it was. The biggest improvement was the elimination of bass drone that I was having. I had a nasty bass boom in what felt like the 50 hz region. As per REW, my room simulation showed bass peaks at 48 hz, so I assumed this was the main culprit. But turns out it was the 50HZ frequency hum on the mains getting into the source chain. Eliminating this has almost removed that nasty bass boom. And I can also sense a darker back ground as a result. On the negative side, I lost a little sweet lushness on female vocals and strings. Guess some harmonics are being eliminated by the conditioner. But all in all, I would call it a sensible upgrade. Will be adding audioquest NRG power cables next to see if that brings any benefits as claimed by audioquest. Wish audioquest had a grounding system like Shunyata or Puritan, so that the power chain would be complete. Maybe something for the future
2) SOTM DCBL CAT-7 Ethernet cable : I plugged it between a cheap and very old TP-Link router ( Powered by a 12V LPSU ), and my lumin streamer. And immediately noticed an improvement in how organic and natural everything sounds. Plus what can be described as the elimination of some haze in the music. And another slight reduction in back ground noise. Iam convinced that network switches with fiber will be the way forward to optimise streaming in the long run. But Iam happy for now