Optional For All MT8, AIM LCR, AIM Cinema Dipole, AIM7 MT, MT6 & NEAT! LCR Series of Speakercraft In-Wall Speakers.

When Installed behind the Speakers, It Forms a Precision Sonic Chamber
The Entire AcoustaCell 8 System Installs through the Standard Speaker Wall Opening
Allows the Woofer to Produce Deep Bass Frequencies
Eliminates Reverse-phase Cancellation Caused by Sound Waves from the Rear of the
Speaker Passing through the Drywall and Mixing with and Cancelling Those from the Front of the Speaker
Virtually Eliminates Helmholtz Resonance and Standing Waves
Subdues Out-of-Phase Drywall Resonance, Allowing Extended and "Tighter" Bass to Reach the Listener
Layers of Mass-Loaded Dampening Material Reduce the Transmission of Sound into
Adjacent Rooms
Can be Used in Both New Construction and Retrofit Applications
Dimensions: (H x W x D) 44" x 14 1/2" x 4" (1,118 mm x 368 mm x 102 mm)