Preparation
Attaching the base (XRT Tower models only)
Each X-Ref Tower model ships with an attractive base. The base is not only decorative, but makes the X-Ref Towers much more difficult to tip over, and provides a mounting place for the included carpet spikes if you choose to use them. We strongly urge all X-Ref Tower owners to use the bases.
Position the base with the raised center area facing the speaker (with the side of the base with the countersunk holes away from the speaker); insert and tighten the four bolts (included).
If your X-Ref speakers are to be placed on a hard level surface (like a wood floor), use only the bases. (You may add felt or rubber stick-on feet at the corners if you prefer).
If your X-Ref loudspeakers are to be placed on a soft surface (like carpet), or an irregular surface (like rough concrete), the included carpet spikes should be inserted into the four holes near the corners of the base. The spikes provide additional stability on soft surfaces and can be adjusted and locked (using the locking nut) to level the speaker on irregular surfaces.
Note: The carpet spikes should NOT be used on finished flooring (like hardwood or linoleum) as they may damage the surface. If you wish to use the spikes for levelling on such a surface, you can purchase small metal “foot plates” on which to sit the spikes, or replace the spikes with special feet intended for delicate floors.
Bottom of
X-Ref Tower
Base
Bolt
Carpet spike 
(with nut)
