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This speakers biggest feature is that it's a THX Select2 Certified in-wall loudspeaker system.
Atlantic's exclusive Low Resonance Tweeter (LRTT) and Directional Vector Control (DVCT) which electronically aims the soundfield for optimal performance when the speaker is mounted above or below listening height.
It is a 2-1/2-way design with two 6-1/2-inch carbon fiber woofers and a 1-inch Low Resonance Tweeter (LRTT) mounted in a sealed MDF enclosure.
Includes a trio of acoustic controls to allow installers to tailor performance to the listening room.
- The first of these is the DVCT (Directional Vector Control), which electronically directs the radiation pattern of the tweeter up or down without the mechanical or acoustic compromises of a 'pivoting' tweeter assembly.
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- Secondly, there is a High Frequency Energy switch to enable installers or listeners to adjust tweeter level for rooms that are acoustically bright or dull.
- The final acoustic control is a Boundary Compensation toggle, which can be used to adjust the lower-midrange output to compensate for the sound colorations that occur when the speaker is placed too near a ceiling or side wall.
Each speaker also includes an IR knockout, making it simple to integrate remote IR sensors into the speaker front plates. The entire IWCB line uses just three models of GFR (grille/frame assemblies) which dramatically simplifies stocking for installers.

Exploded image of grille, speaker and mount
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