Lktanx, here is a technical explanation for you. Large free-standing speakers like the Salons and WP7s are designed to be placed far away from any room boundaries for best sound. The reason for this is only the higher frequencies radiate from the front of the speaker. Lower frequencies radiate from all sides, not just the front. If you wrap another box around the existing box, such as putting it in a cabinet, you will re-direct some of the energy from the back of the speaker toward the front of the speaker, making it sound very boomy. Treble dispersion will also be affected, which will cause imaging to suffer.
An inwall speaker is designed to be placed close to a room boundary. It intentionally has limited bass response and relies on the boundary re-inforcement to get its tonal balance right.
So, rather than trying to use a free-standing speaker in a way it was not designed to be used, why don't you use the type designed specifically for your application? The inwall type will actually sound better than the Salons built into a cabinet. Alternately, some bookshelf speakers are designed for mounting directly against a wall and would sound OK. In either case you would want to get the tweeter of the speaker as close to the front of the cabinet as possible for best dispersion.
An inwall speaker is designed to be placed close to a room boundary. It intentionally has limited bass response and relies on the boundary re-inforcement to get its tonal balance right.
So, rather than trying to use a free-standing speaker in a way it was not designed to be used, why don't you use the type designed specifically for your application? The inwall type will actually sound better than the Salons built into a cabinet. Alternately, some bookshelf speakers are designed for mounting directly against a wall and would sound OK. In either case you would want to get the tweeter of the speaker as close to the front of the cabinet as possible for best dispersion.