Like the CCM663SR, this is a dual, two-way ceiling speaker
The CCM664 features an adjustable, tilt-offset 25mm (1in) soft
The top 6in in-ceiling speaker in the CI 600 series. This
This high-performance 6in in-ceiling speaker features a Nautilus
The CWM663 features a 150mm (6in) blue Kevlar® bass/midrange
A high performance ceiling-mount speaker featuring a 200mm (8in)
The CWM664 has the same basic features and dimensions as the