Which is why Paul Barton spent many hours at the NRC on the issue. You will appreciate the work. Common dimensions between models eases not only original installation but future additions and upgrades. This isn't an initial sonic consideration, but if you decide to make any changes in your in-wall configuration over time, this feature can help make sure that an upgrade is really an upgrade rather than a questionable change. Typical in-wall designs seem to expect the building world to be nicely rational and straightforward to deal with.
Construction is full of irregularities, tight spaces, and mistake-correction.
Its tolerances need understanding, and so do the differences between new construction, existing construction, and remodeling situations. Most of the speakers designed for in-wall use are not even complete. They often require different, additional bracketry and added expense to meet the requirements of new construction. When you look at the illustrations on the succeeding product pages, two of our innovations in the CustomSound series are easy to see. One is the SplitRing back frame on all models, which provides efficient and secure full-perimeter clamping in both new construction and remodels.