I used to own Synergistic Research Element CTS speaker cables and upgraded to SR Atmosphere Level 4 last year. I recently purchased Cerious GE speaker cables and I find them a tad better than the Atmosphere Level 4. The Cerious cables present highs better without being shrill. Instruments like triangles were missing until I changed to the Cerious GE cables. I also notice more punch and grunt in the lower frequencies.
When you consider the Atmosphere Level 4 cables are at least 2 steps up from your SR Tungsten cables and the Cerious GE cables are better than Atmosphere Level 4, I believe you'll be happy with the Cerious GE cables.
Once I heard how good the Cerious GE speaker cables were I also switched to Cerious GE power cables (yellow) for my pair of Devialets and my Aurender music server/streamer and a digital RCA cable to connect my 2 Devialets together. I'm delighted with the results as it took the system up another notch.
Wait til you see the craftsmanship of the Cerious cables. It'll make you wonder why companies like SR charge so much for their cables.