Absorption Data:

FRE + MemTrap Mini

A Full Range Extender + 
a 4-inch Low-Frequency Diaphragmatic Absorber

Rs. 

• A combination of a Mid and High frequency porous absorber
  
  and a 4-inch Low frequency diaphragmatic absorber 
   

• Provides for broadband absorption
   

• Peak performance between 50 and 5k Hz