SRD:Ranged Inspiration

Prerequisite
Bardic music class feature, Perform 25 ranks

Benefit
Double the range of any bardic music ability that has a range. (If the creature must hear the bard to be affected by the ability, that requirement doesn’t change regardless of any extended range the bard’s ability may have.)

Special
A character can gain this feat multiple times. Its effects stack. Remember that two doublings equals a tripling, and so forth.