User manual REVEL C52 REV A

[. . . ] Revel Performa C52 Loudspeaker ® ® Owner's Manual 3 Oak Park Bedford, MA 01730-1413 USA Telephone: 781-280-0300 Fax: 781-280-0490 www. revelspeakers. com Customer Support Telephone: 781-280-0300 Sales Fax: 781-280-0495 Service Fax: 781-280-0499 "Revel, " "Performa, " and the Revel logo are registered trademarks of Harman International Industries. patent numbers and other worldwide patents issued and pending. This document should not be construed as a commitment on the part of Harman Specialty Group. The information it contains is subject to change without notice. Harman Specialty Group assumes no responsibility for errors that may appear within this document. Part No. [. . . ] Harman Specialty Group assumes no responsibility for proper selection and installation of hardware or for any personal injuries or product damages resulting from improper installation or a fallen loudspeaker. Figure 7: Stand Mounted Front or Large Rear Projection Screen Optional Pedestal Stand Front Left C52 (Center) Front Right REVEL Performa C52 OWNER'S MANUAL 11 ADJUSTABLE SPIKES When the C52 is shipped, spikes are attached to the left pad identified in Figure 2. For optimal sound quality, the spikes can be positioned in the threaded inserts on the bottom of the cabinet. Both 1. 5-inch (38mm) and 2. 25-inch (57mm) adjustable spikes are included, allowing for achievement of the proper tilt angle when the C52 is placed on top of a video monitor as shown in Figure 6 or a shelf. For best results, the C52 should be tilted so the front of the speaker is facing directly toward the listener's ears. Place the C52 on its side on a soft towel or carpeted floor. Select the appropriate set of spikes to create a tilt angle that aligns the tweeter with the listener's ears. · Select the 1. 5-inch spikes for a slight downward tilt as shown on the left side of Figure 8 (below). Select the 2. 25-inch spikes for a greater tilt as shown on the right side of Figure 8 (below). These spikes are required for higher loudspeaker placement. Repeat step 4 using the other spike and threaded insert. Make sure the two spikes are evenly threaded to achieve a level balance. Place the protective caps over the round end of the spikes as shown on the right side of Figure 9 (next page) to prevent the spikes from scratching the mounting surface. When both spikes have been inserted, stand the C52 in the upright position. If needed, adjust the spikes to achieve a level balance. · 3. Locate the two threaded inserts on the bottom of the cabinet. These inserts are identified on the left side of Figure 9 (next page). Rotate the first spike clockwise, spike end first, to attach it to the threaded insert. Figure 8: Tilting the C52 Rear of C52 Rear of C52 1. 5-inch Spike 2. 25-inch Spike 12 REVEL Performa C52 OWNER'S MANUAL Figure 9: Adjustable Spikes Threaded Insert Spike End C52 Cabinet Round End (Protective Cap) Threaded Inserts Mounting Surface MAKING CONNECTIONS The C52 features gold-plated binding posts and shorting straps that allow it to be configured for single-wired, bi-wired, or bi-amplified connections. Maximum Wire Gauge Gauge (AWG) 6 7 Length (Feet) 87 69 58 43 34 27 22 17 14 11 9 7 5 Length (Meters) 27 21 18 13 10 8 7 5 4 3 3 2 2 CAUTION · Never make or break connections unless all system components are powered off. · Remove the shorting straps identified in Figure 4 before making bi-wired or bi-amplified connections. Failure to do so may cause damage to some power amplifiers. 8 9 10 11 12 13 14 15 Before making connections, note the following: · Use high-quality loudspeaker cable with a maximum total loop resistance of 0. 07 or less (for each wire run). Refer to the table in the next column to determine the appropriate maximum wire gauge. 16 17 18 Note High loop resistances that exceed 0. 07 (for each wire run) will cause the filter network to mis-terminate, resulting in considerable degradation of sound quality. REVEL Performa C52 OWNER'S MANUAL 13 Making Connections · (continued) SINGLE-WIRED CONNECTIONS Single-wired connections are the most common. These are made between one pair of C52 input terminals and one power amplifier output channel as shown in Figure 10 (below). Connect one pair of loudspeaker wires to the desired pair of C52 input terminals. [. . . ] Conservatively-rated specifications indicate moderate sensitivity, meaning that a massive power amplifier is not required to drive Revel loudspeakers to reasonable volume levels in large listening spaces. Indicates whether the loudspeaker presents a "difficult" or "easy" load on the associated power amplifier. Combined with moderate phase angles, a minimal impedance specification of 3. 1 allows a reasonably designed power amplifier to drive Revel loudspeakers. Indicates the acoustical characteristics of the filter network. [. . . ]