If this image to be believed in,
Then TRN is mostly using older BAs (or they are "updated/custom" version or basically old unit with dampers)
this promo image is curiously missing from the the new marketing materials
and its replaced with this image of nondescript BAs instead (and only descriptive BAs "low freq BA" without driver series number)
and yeah no mention of DLP sound tube shell, just "aviation grade aluminium-magnesium shell."
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while TRN have advantages of "Moar drivers~!", both AS24 and Kumo uses new gen driver who are supposedly better performing + DLP soundtube shells.
well, i guess its depend on the application and tuning.