A virtual press conference from Sound & Video Contractor

Meeting Size Demands

lht01d_200.jpgThe following information is courtesy of the 2008 CEDIA Electronic Lifestyles Designers’ Choice Awards. For more information on how to become a member of CEDIA, or information on its awards program please visit www.cedia.org or call (800) 669-5329.

2008 CEDIA Electronic Lifestyles Awards Entry: Best Large Home Theater Level 1: $80,000-$100,000

Date design began: 02-11-08
Date installation was completed: 04-20-08

1. Synopsis describing the project goals, special features, or nuances.

Undertaking the design and construction of this home theater was challenging. Our ultimate outcome for this project was to complete it on time and within the given budget. Our main challenge was the limited size of the room. Our client wanted the maximum screen size solely for HD contents in a 20ft x 12ft room in the basement with concrete walls. The control system needed to be user-friendly and the home theater needed to have three rows of seating with bass shakers and several lighting theme options. The importance of acoustical treatment was explained to our client and it was agreed to emphasize on this issue for achieving decent sound quality with wall mounted speakers.

2. Did you encounter any challenges or limitations in the design of the system or placement of equipment? Please describe the control system.

The mechanical room location adjacent to the home theater required special attention for our overall sound quality. We proceeded by constructing a second wall 8″ away from the mechanical room to create separation and isolation. Quite batt insulation were used in all the walls and the ventilation ducts were suspended with isolation hangers to assist in sound proofing. Also, due to limited room dimension and the concrete walls, finding a proper location for the A/V component rack was a challenge. In order to keep the project within the budget, we decided to place the components in the properly ventilated front cabinet. Low-voltage fans were installed inside of the cabinet for A/V component ventilation, which were triggered with the receiver’s power ON command.

The touchscreen remote control was our client’s favorite piece in the home theater. Even different lighting themes were macro programmed under “pause? and “stop? along with the “power on/off? commands. Overall, we were very pleased with the outcome of this home theater.

3. Please discuss the acoustics including speaker placement and calibration as well as the SPL reading. Discuss the ventilation of the room.

We used two subwoofers in our system with the center channel speaker located at the same height as the fronts behind a perforated screen. Subwoofers were placed at the front of the room under the left and right speakers. Our acoustical panels covered with soft carpet on all available walls throughout the home theater had tamed most of the low frequency anomalies. In addition, five customized bass absorber panels were constructed to target low frequency resonances below 100 Hz. These panels were installed without affecting the aesthetics of the room. After tweaking the sound and correcting the phase cancellations with AVIA low frequency phase test for the main speakers and the subwoofers, the results were impressive even for us as well as our client. An analog SPL meter was also used and the sound was measured and calibrated for all channels at 75db output. Proper room temperature was programmed into the HVAC control system.

4. Did you calibrate the theater? If yes, please discuss the video calibration and any challenges you encountered during calibration.

A home theater is not complete without video calibration. The video portion of the home theater was calibrated based on ISF and HDTV standard using color analyzer and HD pattern generator. At the end, we fine tuned the video based on our clients taste.

EQUIPMENT LIST:

Qty: 3
Manufacturer: Mordaunt-Short
Model#: Avant AW-162
Product Description: LCR Speaker

Qty: 2
Manufacturer: Mordaunt-Short
Model#: Avant AW-153
Product Description: Surround Speaker

Qty: 2
Manufacturer: Mordaunt-Short
Model#: Avant-909
Product Description: Subwoofer

Qty: 1
Manufacturer: Sanyo
Model#: PLV-Z5
Product Description: Front Projector

Qty: 1
Manufacturer: Da-Lite
Model#: Cinema Contour
Product Description: 133? Diagonal Fixedounted Screen

Qty: 1
Manufacturer: Integra
Model#: DTR-7.8
Product Description: Home Theater Receiver

Qty: 1
Manufacturer: SpeakerCraft
Model#: BB-835
Product Description: Bass Shakers Amplifier

Qty: 9
Manufacturer: Aura
Model#: AST-2B-4
Product Description: Bass Shakers

Qty: 1
Manufacturer: Sony
Model#: BDP-S500
Product Description: Blu-Ray DVD Player

Qty: 2
Manufacturer: SonicView
Model#: HD-8000
Product Description: HD Satellite Receiver

Qty: 1
Manufacturer: Motorola
Model#: DCT-3416
Product Description: HD Cable Box + PVR

Qty: 1
Manufacturer: Lutron
Model#: GRX-3106
Product Description: Grafik Eye Lighting Control

Qty: 1
Manufacturer: Lutron
Model#: GRX-IRE-WH
Product Description: IR Receiver

Qty: 1
Manufacturer: Universal Remote Control
Model#: MX-3000
Product Description: Touchscreen Remote

Qty: 1
Manufacturer: Universal Remote Control
Model#: MRF-300
Product Description: RF Base

Qty: 9
Manufacturer: Elite
Model#: C1 Style
Product Description: Powered Home Theater Seating

Qty: 5
Manufacturer: Custom Made
Model#: Bass Absorber Panels
Product Description: Bass Absorber Panels

TIME AND EXPERTISE:

Client Interviews: 5

Electronic Design and Engineering: 6

Proposal and System Documentation Preparation: 7

Project Management: 11

Pre-wire/Rough-in: 12

Trim-out: 6

Shop Time for Racking and Testing: 5

Programming: 12

Final Installation and Calibration: 18

Client Instruction: 2

Interior Design and/or Architecture by your Company: 21

Interior Design and/or Architecture by Others: 0

Project Management by Others: 11

Other time: 132
Describe Task: Fabricate and install; side panels, cabinets, lighting fixtures, carpet, drywall, and painting

Total Hours to Complete: 248

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