User manual POLK AUDIO LCI-RTS-FX

[. . . ] Also, you should be familiar with the area behind the wall or ceiling into which you plan to install your speakers. Always use wire that meets appropriate building and fire codes. Use at least 14 gauge wire or heavier for the best sound quality. (Note: Wiring is best performed by an experienced professional. [. . . ] RTSC/RTSFX ROOM ENVIRONMENT CONTROLS Tweeter Switch (RTSC/RTSFX) If your listening room is very reflective, with smooth sheetrock walls, hardwood floors, and non-cushioned furniture, the sound will be overly "bright" and unnatural. selecting the "cut" setting compensates for the effect of reflectivity in a hard room. Tweeter attenuation flattens room response, without hindering higher frequency response, for warmer, more realistic sound and more accurate imaging. Wall Distance Switch (RTSFX) In-wall and in-ceiling loudspeakers excel when placed more than 2' (60cm) from side walls. If position limitations demand that in-wall loudspeakers be installed closer than 2' (60cm) from side walls, the proximity of the surface can result in a response "bump" between 50 and 200Hz. This can cause in-wall speakers to sound "boomy. " The Wall Distance Switch flattens response and tunes out "boominess" without sacrificing deep bass response, for more lifelike sound. Recommended speaker distance from side walls is 2 feet (60cm). RTSC/RTSFX THX® Ultra2 Performance For THX® Ultra2 performance, use the cloth grille; set the Tweeter Switch (RTSc/RTSFX) to the "normal" position; on the RTSFX, set the Wall Distance Switch to the greater than two feet (>2) position. PAINTING IN-WALL GRILLES Painting in-wall grilles The RTSC/RTSFX are supplied with two grilles, one perforated aluminum, the other cloth-covered plastic. The perforated aluminum grille may be painted, while you may dye the cloth grille. Paint of your choice (grilles must be spray painted). If the speaker is not yet installed, the grille can be removed simply by pushing the clamp screws forward to push the grille off the speaker from the inside. Remove the cloth scrim from the inside of the grille. When painting the speaker frame, use the supplied paint masks to carefully mask off the front of the speakers to protect the drivers and baffles. You can do this while the speaker is already installed in the wall (if, for instance, you're repainting the room). If you do not have the paint masks, carefully mask the speaker components using paper and masking tape. If you use the cloth grille, take special care when removing it. Important Note: Never use any tool, such as a paperclip, to remove the grille, as this could tear the cloth. Instead, use your hands (after you've washed them), grasping the grille frame near two of its mounting cups and pulling the frame firmly away from the baffle. If you're using a compressor and spray gun, use the finest, most diffused setting. Be careful not to fill the holes in the grille with paint. [. . . ] Products replaced or repaired under this warranty will be returned to you, within a reasonable time, freight prepaid. This warranty does not include service or parts to repair damage caused by accident, disaster, misuse, abuse, negligence, inadequate packing or shipping procedures, commercial use, voltage inputs in excess of the rated maximum of the unit, cosmetic appearance of cabinetry not directly attributable to defect in materials or workmanship, or service, repair, or modification of the Product which has not been authorized or approved by Polk Audio. This warranty shall terminate if the Serial number on the Product has been removed, tampered with or defaced. This warranty is in lieu of all other expressed Warranties. [. . . ]