I own a few SUT's and have received demonstrations of a range of other Brands SUT's as comparisons to my owned models.
I have also been demonstrated Head Amp's in my own system in comparison to my owned SUT's.
A Head Amp is also worthy of being considered as far as I am concerned.
The Structure A SUT is a Brand I was recently introduced to, and have received demonstration of this Brands Models as a Copper Tranx and a Silver Tranx.
I am quite familiar with the SUT these were compared to, and these have left a very good impression, to the point I intend on having a Home Demonstration in the future.
I had read further into the Tranx Core Metal design of the Structure A SUT and had discovered SUT Models from another Brand using similar Core Metal for a product that was quite a bit more expensive to purchase.
I have also found a user comparison review of both the Brands SUT's where to Structure A is seeming making a very good impression and had been a selected purchase as the result.