Residential Audio & Video Systems Copyright © 2005 Heathkit Company, Inc. All Rights Reserved Presentation 14 – Introduction to Whole House Audio and Video Systems

2 Objectives At the end of this presentation, you will be able to:

3 Explain the difference between dedicated and distributed audio systems. Explain the difference between analog and digital audio distribution systems and identify the components of each. Draw basic diagrams showing the difference between single zone and multi-zone audio distribution systems. Explain how centralized audio equipment can be controlled from remote locations.

4 Dedicated Versus Distributed Dedicated – Confined to a single room. Distributed – Interconnected components spread over multiple rooms.

5 Advantages of Distributed Audio/Video Systems Lower cost than placing comparable equipment in several rooms. Greater availability of multiple programming sources. Easily updated as new technologies emerge. Increases the livability of the home. May even increase the resale value of the home.

6 Factors Affecting Whole-House Distribution Systems New construction versus retrofit. Home owner’s media preference. Single zone versus multiple zones. Analog versus digital.

7 New Construction versus Retrofit New Construction – Rough-in and Trim-out stages. Retrofit – Cables are pulled and terminated throughout a finished structure.

8 Media Preference Situations Distributed Audio Distributed Video Distributed Audio/Video

9 Single-Zone System - All the speakers throughout the home receive the same programming.

10 Multi-Zone System – A whole house system in which different areas of the home can receive different programming.

11 Analog Versus Digital Distribution Analog System – Central amplifier powers outlying speakers. Audio is distributed to other rooms as an analog signal via speaker wire. Digital System – Central router sends digital signals to outlying amplifiers. Audio distributed as digital signals via CAT5e or CAT6 cables.

12 Receiver/Amplifier Analog Audio Distribution Satellite Radio Distribution Amplifier To Speakers CD Tape AM Ant. FM Ant.

13 Digital Audio Distribution Satellite Radio CD Tape Audio Router A/D D/A AMP D/A AMP D/A AMP D/A AMP A/D

14 Distributed Audio Equipment Audio source equipment Audio amplification and distribution Remote control Wiring and cabling Speakers

15 Audio Source Equipment AM/FM Radio CD Player DVD Player Satellite Radio MP-3 Player Intercom Tape Deck Phonograph

16 Audio Amplification and Distribution The audio must be amplified before being applied to a speaker. Distribution amplifiers provide a different amplifier for each pair of speakers. Some switching mechanism must be provided for selecting the audio source.

17 Remote Control Allows the end user to determine source of the audio, its volume, tone, etc. Remote Control Extender allows users in other rooms to control equipment as if they were in the room with the equipment.

18 Hand Held IR Remote

19 The Remote Control Extender IR to RF Converter and Transmitter RF to IR Converter and Transmitter

20 Remote Control Extender IR to RF RF back to RF

21 IR RF IR Remote Location Equipment Room IR-to-RF RF-to-IR

22 Wiring and Cabling Distributes audio to speakers. Home run wiring. Color coded left and right channels. Visible polarity markings.

23 Speakers Installed in stereo pairs (left and right) Usually wall or ceiling mounted Can be free standing Outdoor units available

24 Distance to Speakers Keep the distance as short as possible. Adhere to minimum wire gauge versus distance guidelines

25 Minimum Wire Gauge Versus Distance Less than 80 feet use 16 gauge. More than 80 feet but less than 200 feet use 14 gauge. More than 200 feet use 12 gauge.

26 Wall Speaker Placement 1/82/8 3/84/85/8 6/87/8 1/4 1/2 3/4 5-1/2 ft 4 ft Left Right

27 Ceiling Speaker Placement 1/3 2/3 1/6 2/63/6 4/6 5/6 1/2 Left Right

28 CD Player Satellite Radio FM Stereo Distribution Amp To Zone 1 Speakers Single Zone

29 Distribution Amplifier OUTPUTSINPUT L R VDC

30 CD Player FM Stereo Zone 1 Two Zone System Zone 2 Satellite Radio Patch Panel Dist. Amp Dist. Amp

31 Planning for Upgrading Central location for equipment Home run wiring.

Residential Audio & Video Systems Copyright © 2005 Heathkit Company, Inc. All Rights Reserved End