User manual NILES CM8SW

[. . . ] INSTALLATION INSTALLATION & & OPERATION OPERATION GUIDE GUIDE CM8SW SUBWOOFER ® B LENDING AND H IGH F IDELITY ® A RC H I T ECT U R E Congratulations! Thank you for choosing a Niles ceiling mount loudspeaker. With proper installation and operation, you'll enjoy years of trouble-free use. The CM8SW is a ceiling mount subwoofer uniquely designed to provide unobtrusive low frequency augmentation. The selectable high and low-pass filters make it suitable for use with a wide variety of satellite speakers. [. . . ] A typical speaker wire route would be: from the speaker location in the ceiling, across the attic, then down through a top plate (the horizontal 2x4 or 2x6 laid across the vertical studs) to the volume control location, back up to the attic, across the attic, and finally down another wall plate to a j-box in the wall behind the stereo system itself (See Figure 11). Identify where all of your electrical, phone, and TV wiring is likely to be and plan to route around it all. You can accidentally induce 60Hz hum on your speakers if you run your speaker wire right beside electrical wire for more than a few feet. Try to run speaker wire parallel to power cables at least 3 feet away. To find exactly where an electrical cable is routed, try inspecting the inside of the wall by turning off the breaker for a particular power outlet or switch, removing the cover plate and Installation Fundamentals 11 Concealing Speaker Wire in Existing Walls This is actually a fairly simple task if you restrict your choice of speaker locations and wire routes to the ceilings or interior walls of your home. Interior walls in almost all North American residences are hollow, so it is easy to flush mount speakers into them and route new speaker cable around the house. What you see when you look at the painted wall board, plaster, or paneling is only the skin of the wall. Behind the skin is the skeleton; two-by-four wood or metal "studs" running vertically from the floor to switch or receptacle, and shining a penlight into the wall. If you have access to an attic or basement space you can quickly see which part of the wall space is free of obstructions (See Figure 12). When you don't have access above or below the wall, try to estimate the existing wire and pipe locations from the positions of electrical outlets and plumbed fixtures on both sides of the wall. Take a look at the outside of your house too, sometimes conduit, vents or drain pipe will be visible giving useful information. Choose the route with the fewest potential obstacles. Installation Fundamentals Speaker Location Volume Control Location If your house is built on a slab or you are wiring between two finished floors, look for baseboards which could be removed and replaced with the wire behind them. Doorjambs can be removed and often have enough space for speaker wire all the way around the door (See Figure 13). Sometimes, an under-the-carpet run is pos- Figure 11 Stereo Location sible (there are special flat speaker wires made for under-the-rug wire runs). As a last resort, heating and air conditioning vents can be used as wire raceways for plenum rated wire (check your local building codes, some municipalities require conduit). Unobstructed space for speaker wiring Figure 12 12 In traditional wood ceiling joist/drywall construction you should first cut the hole for the speaker and utilize the large hole to auger holes across the ceiling (through the ceiling joists) for as far as your drill bit will take you. Sometimes, you will need to use the "notching" technique to reach areas your drill bit won't reach or to turn corners (e. g. to go down the wall when there is not an accessible attic). Don't make an irregular hole in the drywall. If you carefully cut a rectangular hatch in the drywall you will make your patch at the same time you cut your hole. Notch the bottom of the joists and run the wire through the notches. Once you've run your wire replace the hatch you cut using standard drywall "joint tape" and "joint compound" to hold the patch in place, let dry, sand the surface and touchup the wall with paint (See Figure14). Figure 13 Installation Fundamentals 13 The doorjamb has been removed and the speaker wire concealed between the wall and the jamb. Nail plates are installed to protect the wire and the door jamb is replaced. Ceiling Nail plate Joist Nail plate Stud Plate Wall Figure 14 Diagram of ceiling speaker cut-out with ceiling joists notched for wire run. Installation in New Construction Stage One: Before Drywall is Hung Insulating the Wall Cavity. If feasible, fill the wall cavity with insulation at this point. breaking them along the scored lines if their length will interfere with a corner or eaves. [. . . ] ____________________ ____________________ ____________________ ____________________ ____________________ ____________________ PLEASE FILL OUT THE WARRANTY REGISTRATION CARD ON THE REVERSE SIDE, DETACH, AND MAIL TO: Niles Audio Corporation Warranty Registration Dept. Box 160818 Miami, Florida 33116-0818 DETACH HERE ® Limited Warranty Niles Audio Corporation ("NILES") warrants its loudspeaker products to the original purchaser to be free of manufacturing defects in material and workmanship for a period of five years from date of purchase. This Warranty is subject to the following additional conditions and limitations. The Warranty is void and inapplicable if NILES deems that the product has been used or handled other than in accordance with the instructions provided by the manufacturer, including but not limited to damage caused by accident, mishandling, improper installation, abuse, negligence, or normal wear and tear, or any defect caused by repair to the product by anyone other than NILES or an authorized NILES dealer. [. . . ]