The French Magazine Haute Fidélité reviewed the ST2 HiFi in a special issue dedicated to acoustic correction.
Here is an extract of the review, writtend by Patrice Philippe:
In conclusion, to try it is to adopt it with no hope of going back. What a long way we have come since the parametric equalizers of our youth, it makes you wonder. At the same time optimizer, active filter, DAC, ADC and preamplifier, Trinnov's ST2-HiFi is still making a name for itself.
You can buy the issue here.