Another review of the TRN BA5 on Facebook with frequency response curve: (Thai)
https://www.facebook.com/notes/รีวิวหูฟังบัดเจ็ท/รีวิว-trn-ba5/718879098523610/
in addition to that it has a nice graphical summary of all characteristics in scores
open it with google chrome browser and use the on-the-fly translation to have everything in English
caveat: impressions only in combination with a custom cable from Nicehck (16-core):
>Reviewer has matched the cable with the TRN BA5 and decided to use a pure copper wire braided with 16 of NiceHCK in this review. Therefore, please readers that understand that The commentary and diagnosis of the points in this review are mainly based on the sound received from the use of this cable.
What was the temperature of the room and % humidity???