Just purchased a "WhisperRoom" to do over dubs. Dims are .. 2' 11.5" x 4' 4.5" x 6' 8" Has a nasty standing wave appearance at 250Hz .. pretty much makes it useless as a vocal booth in it's present state. I have a couple of roominator kits coming from Auralex. Do you think some of the diffusers and bass traps from these kits may resolve my issue ???