User manual INFINITY PRIMUS 150

[. . . ] Since the speakers are magnetically shielded, you can place them without worrying about the field distorting the TV picture. For rear-channel use, place Primus bookshelf speakers on bookshelves or stands alongside the listening position. Final placement depends on room acoustics, availability of space, and your listening preference (Figures 2 and 3). [. . . ] NOTE: The customer is responsible for the correct selection and use of mounting hardware (available through hardware stores) that will ensure the proper and safe wall-mounting of the speakers. WIRING THE SYSTEM IMPORTANT: Make sure all equipment is turned off before making any connections. For speaker connections, use a minimum #16-gauge speaker wire with polarity coding. The side of the wire with a ridge or other coding is usually considered positive polarity (i. e. , +). NOTE: If desired, consult your local Infinity dealer about speaker wire and connection options. The speakers have coded terminals that accept a variety of wire connectors. The most common connection is shown in Figure 5. To ensure proper polarity, connect each + terminal on the back of the amplifier or receiver to the respective + (red) terminal on each speaker, as shown in Figure 6. Connect the ­ (black) terminals in a similar way. See the owner's guides that were included with your amplifier, receiver and television to confirm connection procedures. IMPORTANT: Do not reverse polarities (i. e. , + to ­ or ­ to +) when making connections. Doing so will cause poor imaging and diminished bass response. FIGURE 4. Keyhole mounts 1/4"-20 Threaded insert (Primus 140 only) ­ + Step 1. Mark the positions on the wall where you would like to place the mounting screws. Fasten two 1-1/2, " #10 wood screws to the wall using the markings placed in Step 1 as your guide. Leave an 11/16" space between the wall and screwhead. If a wall stud is not available, use an appropriate anchor. Place the speaker on the wall by aligning the keyholes on the back of the speaker to the screwheads on the wall. Once positioned properly, the speaker should slide down slightly and become secure. The Primus 140 also allows the use of third-party wall brackets using the 1/4" threaded insert located beneath the keyhole mount. [. . . ] Conversely, if you place the speakers closer to the walls, there will be more bass output. Nearby reflecting surfaces can adversely affect stereo-imaging quality. If this happens, try angling the speakers slightly inward toward the listening position until the optimum effect is achieved. CARE OF YOUR SPEAKER SYSTEM Each Primus series cabinet has a wood-grain-vinyl finish that does not require any routine maintenance. [. . . ]