Yeah, the Transparent system I heard used the XL but I don't know the price of XL compared to MB Ref. MB Ref in my opinion was nice, but I've heard better cables. When comparing side by side, you can tell that the Reference and Ultra were "cut from the same cloth" so to speak. For example they had the same general presentation, somewhat laid back. But the Reference line, for me, didn't come close to the Ultra in areas like microdynamics and detail. The utter effortlessness and tactile palpability (as I previous described) were unique to the Ultras.
"Cut from the same cloth"... It is very interesting, I agree^^
I've ever compare MB's ref and sig (Ultra was not income to Korea). Ref was normally good. Well balance, wide spectrum, less dynamic. Sig added strong bass and some special high like as sparcle, particle, airy, ...
When I compared Siltech empress and triple crown. Empress shows what the siltech is. Perfect dynamic, gold sand high, less and tight bass. Triple crown added great bass and wide stage.
When I compared Transparent Magnum opus and Nordost valhalla2, magnum shows what the 'perfect' is. Great bass, natural, transparent, staging, perfetct high without any particle.
I hope to put the puzzle of TA. So want to listen TA's ref or xl.
If it is from same cloth, I'll go to TA. It maybe needs a month to audit TA in my home. If it does not meet my expectation, I'll keep MB ref.