I agree with TG audio as well, I a have 4-5' of both TG and Golden Ref here. The TG has a bigger stage, better bass soundstaging, more rear hall info,...... on most amps with my Merlins it isn't really that close.
The Golden Ref seems more upfront, with a slightly deeper stage (but less focused rear of stage too vs TG), a little less soundstage height with the Cardas, very similar soundwise/tonality, with the TG being a bit more musical and really bringing 19th and 20th century symphonies home in a big way (see Bob Neill's review on positive feedback it's pretty accurate, just note Bob isn't a big soundstaging guy though). The TG goes better with my older Blue Circle BC2 and Joule amps. but the non-phase inverted lastest Blue Circle amps (with balanced amp output stages ie current on both + and - vs most regular amps having signal on + only with the - being a return only) the non-directionality on Cardas Golden Ref seems to work better. The very directional Tg Audio wires on the latest Blue Circle amps seems a bit more "phasey" as the Black or - return in the Tg audio is as highly directional as the + Red. It is the ONLY amp I have heard where the Cardas Golden Ref Biwire beat the TG - barely (as I am very phase sensitive).