This cable game is making my head spin

Do you have any isolation feet or vibration control devices under any of your components? Remove them and see if the sound changes. Some of these devices kill dynamics and make your system sound just like you described.
 

As for the cables, I would allow the new interconnects to break in for at least 100hrs and if possible 200hrs to really be able to draw your conclusions. 
If nothing changes then ditch these cables and move on. 

The original Audience AU24 interconnects and speaker cables on a used market for a very reasonable price deliver the type of sound you’re looking for. These will be tough to beat. 
Also Acoustic Zen Silver Reference II or even the Matrix Ref II are worth a shot.

Another experiment to run is to reintroduce all the stock cables back into your set up and re-evaluate.

Good luck!

Metals matter not much. Geometry and insulation matter more. It makes more sense to find cables that mate between components than a ’brand’.

Power cables are largest cable snake oil category.

Chosen for sonics:

• • 800x subs: heavy duty double shielded video cable*
• • Woofer Outlaw M2220: ancient Monster Reference prototypes*, output HannLinte Braided OFC 10AWG*
• • Mid panel ieLogical M-125s: Transparent MusicLink, output Kimber Monocle XL
• • Tweeter PrimaLuna PL5: Hitachi OFC microphone cable*, output HannLinte Braided OFC 10AWG*

* no longer available

See Cable Snake Oil Antidote

@blue_collar_audio_guy if that’s where the last change occurred, focus there yet there can be a double-up effect if you run the same cables at source/pre and pre/amp if its already headed in a certain taming direction you don’t like.

Fwiw, while I do run same_brand and model cables (Analysis Plus Crystal OCC) from streamer>DAC as source>pre>amps, some times I intentionally intermix different ICs at different layers to change it up every once in a while. I was a 25+ year Cardas diehard, tried 12+ different TOTL pairs, and use to intermix some for fun. Did some demos for the factory too years ago, was asked to give feedback on new versions.  Sometimes with great results, "intermixing". Remember, the wiring inside each of these components can be different too. The notion of holding firm that you "must" run all of the same type/model of cable is one way, not always the best way. Each system and each of components, internal wiring, can be unique and not the same there either. This is why I was recommending trying other source components to re-test in the chain (instead of phono) and leaving your AS Statement SE cable in play pre>amp. You may in fact notice a difference there not having a phono/pre section in play with the Audio Sensibility cables doubled-up source>pre>amp. Try it.

Do you have any isolation feet or vibration control devices under any of your components? Remove them and see if the sound changes. Some of these devices kill dynamics and make your system sound just like you described.

I have my amp, preamp, and phono stage on thick butcher block platforms with spikes. If I were to experiment running without should I try removing one at a time?

I did some experimenting today and ran the Impact SE power cable to my amplifier. I liked what was I hearing so far. Need to break in to further evaluate. I also tried the Impact SE interconnect in different configurations with a digital source and vinyl and found I like it best running from Phono stage to preamp. I’ve read speaker cables are your most important cable investment. Is this true? I would put more in budget towards them if that is the case. $1000-1500 for a pair of life long cables. Have looked at Silversmith Fildeliums and Supra Sword among the other brands that have been suggestion here like the Cardas, Wireworld, etc..

Supra Sword Excalibur excuse me.