Magnepan CCR - Manual (Page 4)

For custom installations that require mounting the CCR, 1/4"-20 T-nuts are
built into the bottom of the CCR that can be utilized for different custom
requirements. A diagram of the T-nut placement is shown below.
7 Phasing
Correct phasing between the tweeter and midrange is accomplished when the
speaker is angled relative to the listener as shown below. The enclosed
adjustable foot can be used to tilt the CCR upward. Correct phasing between
the midrange of the CCR and the bass augmentation provided by the left/right
Maggies is best accomplished as part of the BassManagement and Processor
Settings.
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