The whole btight thing is not true. Usually the people who write that the speakers are bright either:

A. do not know what bright means,

or

B. Are used to laid back speakers such as the Rockets.

The Axioms are accurate of the recording. A bright recording will sound bright while a laid back recording will sound laid back. A great recording will sound great.

Laid back speakers make everything sound laid back. No matter what the quality of the recording.

So do not be afraid of the Axiom sound.