[. . . ] Please read through these operating instructions for proper assembly and use. After you have finished reading the instructions, put them away in a safe place for future reference. [. . . ] Adjust the position as necessary to obtain optimal sound from your system. Make sure you assemble the stand on a flat surface that is relatively soft (such as a carpet). Make sure the screws are inserted in the screw holes as shown above (with the screw head hidden) when securing the speaker. Improper setup could result in damage or injury if the speaker falls from the stand. The speaker stands include spikes that you can use to isolate the speaker from the floor. Spikes are recommended when placing the stand on a thick carpet (for added stability), or for better sound when placing the stand on a hard reverberant surface (such as a concrete or wood floor). Use the supplied spike bases to avoid scratching the floor or other surface where the stand is placed. When using speaker spikes: Place the speaker spike bases in the four holes provided on the speaker support, then secure the speaker to the speaker support using the washer, spring washer and the 62 mm screws as shown below. Before placing the speaker on the speaker stand, make sure the stand is stable and resting squarely on all four spikes. When not using speaker spikes: Secure the speaker to the speaker support using the washer, spring washer and the 36 mm screws as shown below. [. . . ] Please contact the dealer or distributor from where you purchased the product for its after-sales service (including warranty conditions) or any other information. In case the necessary information is not available, please contact the Pioneer's subsidiaries (regional service headquarters) listed below: PLEASE DO NOT SHIP YOUR PRODUCT TO THE COMPANIES at the addresses listed below for repair without advance contact, for these companies are not repair locations. [. . . ]