It's the same source. 8341A is <= 3 dB. Like I said, this is just a nit pick not a deal breaker. Maybe my gaming room is just really quiet. New construction, thick insulation, no main roads nearby, etc.
Spec wise, the 8030C (<= 5 dB(A) @ 1 m) is actually an upgrade from its predecessors (<=10 dB(A)).