Four Home Theater Room Projects
Transcription
Four Home Theater Room Projects
Four Home Theater Room Projects THREE HOME THEATER ROOM PROJECTS Copyright 2002 All rights reserved. Printed in the United States of America. No part of this book may be used or reproduced in any manner whatsoever without written permission, except in brief quotations embodied in critical reviews. CinemaSource is a registered federal trademark. For information contact: The CinemaSource Press, 18 Denbow Rd. Durham, NH 03824 Four Home Theater Room P rojects 3 Four Home Theater Rooms • The Frank Family Home Theater Room -------------------------------------------• The Doyle Home Theater Room ----------------------------------------------------• The Freeman Family Home Theater Room ----------------------------------------• The Fiorentino Home Theater Room ----------------------------------------------oing things together comes naturally to the Frank Family of Medfield, Massachusetts. Richard (Dad) runs Frank Marketing, a successful public relations firm specializing in the marketing of consumer products. As a consumer electronics enthusiast for more than 25 years, he’d seen a number of exciting home theater installations come to fruition and decided the time had come for his family to get involved. D Richard contacted several custom electronics specialists and got quotes on installed ready to use systems. “The people we dealt with were very professional, but the quotes we got were substantial, well over 20 thousand dollars,” Richard recalls. “While we realized that we could have saved money by putting in a smaller (60”) rear screen television, we knew that that would defeat the purpose; a real home theater, with a cinema-like 100” picture, and nothing less.”Presented with a not so 3 5 6 13 uncommon dilemma, The family considered their options; they didn’t want to compromise on their dream home theater, but with daughter Tracy in college, and son Wes, in high school, this was not the time to spend $20,000 plus. After mulling it over for a while a solution presented itself. Built it themselves! After spending some time researching, ordering and receiving the equipment, the Frank Family’s first task was to install the motorized projection screen. The location for this screen was unique. Richard wanted to hide it in the soffit above the family room’s picture window (see diagram on the next page.) This was important to him because he wanted the room to do double duty; first as a comfortable family room, but, with the push of a button, converted into a full fledged home theater room. Building the screen into the soffit allowed this, because it could be rolled up when the home theater was not being used. Four Home Theater Room P rojects 4 The Completed Home Theater Room, 3D view After the screen was mounted in the soffit, the next step was to physically mount the projection monitor. “I was concerned that this would be difficult,” Richard recalls, “but the process wasn’t hard. We read through the installation guide step by step, and then simply went to it.” The next step was to do the mechanical and electronic alignment of the front projector to the screen. This procedure involves focusing the projection lenses and adjusting convergence controls. Richard explains: “Traditionally the electronic alignment of a front projector is done by professional video firms, but CinemaSource The Franks’ Family Room During The Day supplied me with a highly detailed manual that took me through the procedure step by step. I would say the procedure is roughly equivalent to tuning up a car; certainly not something every person should tackle, but easily within the reach of a do-it-yourselfer.” The final step in the Frank family installation was to install the audio and video equipment and run all the cables. Although this did take a few days, Richard took time to build the equipment into a custom bookshelf and hide the wires, behind the walls and under the floor. This gave his home theater room a professionally installed look. The photographs below show the completed system in action. The Franks’ Family Room At Night Four Home Theater Room P rojects The Doyle Home Theater Room P roject he photos here illustrate the Doyle Family’s finished home theater room.The walls are covered with maroon pattern wallpaper and a gold art deco stripe encircles the room. A comfortable couch is the primary audience seating location and dark velvet curtains not only give a theater-like atmosphere to the room but function as acoustical treatments. Around the perimeter of the room various framed theater posters and other theater signs can be seen. The primary video display device, a DWIN HDP-500 front video projector, is hung via 2” threaded pipe from the ceiling. The remaining Audio/Video equipment is mounted in a recessed rack located in the left corner of the room and wires to the speakers and video projector are concealed in the ceiling and in the walls. For speakers the Atlantic Technology 350 system was chosen for true home THX sound quality. This room is a good example of what can be done on a modest budget with a good dose of sweat equity. T 5 Four Home Theater Room P rojects 6 The Freeman Family Home Theater Room P roject efore a single hammer was lifted,Dave freeman of Holbrook, MA did several months of research into home theater design. By purchasing the equipment from the right paces and utilizing some A/V components he already had, Dave figured he could build his entire room for less than $6000. The following steps document the installation and calibration of the equipment. B Equipment used: A Zenith video projector PRO851 ($3500 retail, $2800 street), a Vutec 100” Vu-Easy flat screen ($491 retail, $442 street), an Atlantic Technology 250.1 home theater speaker system ($1826 retail, $1299 street), a Pioneer VSX-505S Dolby ProLogic surround sound receiver ($549 retail, $399 street), and a Panasonic PV4664 Hi-FI VCR ($449 retail, $349 street) and Misc. Liberty wire and cable interconnects and speaker wire ( $138 total). The grand total: $5427 The Proposed Home Theater Room, 3D view The Proposed Home Theater Room, Overhead View Four Home Theater Room P rojects The first step was to draw a sketch of the proposed room and decide the audience seating position and best size projection screen (see our article, Optimum Room Dimensions, on page 22 for guidance on this). Dave decided to use a 100” diagonal screen. After the screen size was determined, the installation charts supplied by Zenith were consulted for the screen mounting dimensions. As the diagram shows, the screen should be mounted 3” from the ceiling. L-Brackets Next the screen was mounted on the wall. The actual mounting of the screen assembly was done by attaching four small “L” brackets (provided by Vutec) to the wall with toggle bolts, and then bolting the screen onto them. The next dimension to be obtained from the installation charts was the projector mounting distance. For a 100” screen, it turns out that the distance from the screen surface to the center of the projector bracket is also 100”. 7 8 Four Home Theater Room P rojects Care must be taken to make sure the projector is mounted “square” to the screen. In this diagram, the screenprojector system is square when X1 = X2 and Y1 = Y2. Suspending the ceiling mount bracket requires some handiwork. The Zenith PRO851 projector is heavy (110 lbs) so it must be fastened securely to structural members above the projector. The diagram shows the method used. Because the ceiling in Dave’s home theater room is a standard suspended ceiling, attaching the ceiling mount bracket securely to the floor joists above was relatively easy Six heavy 5” drywall screws were used to attach each 2x4 support beam to the floor joists. Threaded rods were then suspended from the 2x4 beams and into the projector ceiling mount bracket. Four Home Theater Room P rojects 9 The actual wiring of the video section of Dave’s home theater system is rather simple. The diagram shows how the video components are interconnected. A local electrician was called in to install an AC duplex box above the projector mount. The projector’s power cord was simply plugged into the outlet. Once the ceiling tiles are put back in place the duplex box and plug are completely hidden. After the wires are routed, then the projector is hefted up onto the ceiling mount. After it is securely bolted to the mount, the power and video cables were connected to the projector. The audio system was the next thing to be installed. This diagram illustrates the routing of the speaker cables to the speakers. 10 Four Home Theater Room P rojects The VCR, cable box and Pro-logic receiver were placed in the wall unit and all connections between components and to the speakers were made. Sometimes simpler is better. The center channel speaker was just placed on a small wooden shelf. The shelf and brackets were painted white for minimum The left and right front speakers were placed on stands that flank the screen. This allows the sound stage to closely mirror the screen action and allows the speakers to be angled at the audience for optimum sound reproduction. The subwoofer was placed up in the right hand corner next to the wall unit. This location takes advantage of wall boundary near field conditions so that bass frequencies are reinforced. Four Home Theater Room P rojects The dipole surround speakers were hung on the rear walls flanking the audience seating area. This creates an acoustic null in the seating area that eliminates localization of the rear surround information. The surround speakers were hung via supplied clips on the walls. The speaker wires were snaked across the suspended ceiling and down inside the walls. They exit through a small unfinished hole right behind each surround speaker. Now that the physical installation of the projector, speakers and all the A/V equipment is complete, the aligning procedures can start. First, we power up the system and verify that all systems work. Since the PRO 851 lacks a built-in test pattern generator, The Imaging Science Foundation’s Video Standard disc was used as a source. (A RadioShack SPL meter was later used to adjust the Prologic speaker levels.) 11 12 Four Home Theater Room P rojects The projector was aligned using the instructions in the PRO 851 Installation instructions in the CinemaSource Guide To Home Theater Construction. The lighting in the room is controlled by X-10 modules wired directly to each lamp. Dave in his completed home theater room. Four Home Theater Room P rojects The Fiorentino Home Theater Room P roject The home theater room profiled here was built b y Gilbert Fiorentino, the CEO of TIGER Direct. It differs from the standard high-end, custom-installed, home theater room in that Mr. Fiorentino built almost all of it himself . The equipment in the room is all high level. A NEC graphics projector projects on a 4:3/16:9 automatic masking Stewart screen. The audio system is Krell, Lexicon, Velodyne and Martin-Logan. The system includes a separ ate A/V equipment room (with dedicated 150 amp service) and the main room, itself , features elabor ate acoustical treatment and tactile transducers under floor surfaces. Because of Mr . Fiorentino’s occupation (Tiger, Direct is one of the world’s largest computer resellers), this room also features full integr ation to digital sources; Internet, computers, video games, etc . Conduits were laid under the concrete slab... ... and terminate in the equipment closet. An overhead view of the room showing the acoustical treatments 13 14 Four Home Theater Room P rojects An inside view of the room showing placement of the screen, speakers and other components An overhead view of the room showing placement of the screen, speakers and other components Four Home Theater Room P rojects The finished room, front view The finished room, rear view 15 16