Only user accessible adjustments with the MIT. Transparent must be retuned for each component. The good news is that the turnaround is quick. I'm sure at worst Transparent would charge a fee to second owners for retuning. But they may not. A call to them will certainly answer the question.
Which brings me to the question whether these cables you borrowed are tuned for your electronics/speakers? If not, that might be the cause. It's actually very interesting how much of a difference that the tuning makes in the sound.
I think Floyd said that the wires were tuned to his components before they were shipped by mfr.