I also own Lamm M1.2’s and Wilson Alexia. I have XLG5 signal cables which I upgraded from RefMM2. For many years I had all Shunyata power products. A few years ago I demo’ed the TA G5 power cords starting with the Reference thru Opus against Shunyata Sigma HC, Digital and Analog power cords. Each TA cord was not surprisingly better than the next and I preferred the sound of the Reference to the Sigma. I now have TA XLG5 power cords and XL power isolators the PIXL replaced Triton V3 and Typhon for sources and Denali for amps.
TA recently announced the Gen 6 version of their signal cables which means the power products in their Ref and up will be released in the future. I likely will not upgrade the signal cables due to the cost.
I would suggest you demo their G5 Ref and XL cords against the latest Shunyata Sigma and your existing cords. I found each other’s cords were not compatible with the others power conditioners so I compared direct to the wall for sources and amps.
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