Active Bass Absorber Absorbs room modes between 15 and 150 Hz, Reverberation time is significantly reduced in this frequency range, Effectiveness corresponds to an absorber of 25 times the size, No calibration or...

"Vicoustic VicTotem Cherry- modular acoustic treatment system- quick and easy transform- flexible panels enable to set up a customized recording area just about anywhere- panels can also be used to change the acoustic..."