How to Hook Up a Bose 321 System to a Cable Box

Written by irene a. blake
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Since 1964, Bose has created high-end speakers and sound systems. The design of Bose's 3-2-1 DVD Home Entertainment Systems---GS and GSX series---allows anyone to use radio, CDs, cable or DVDs through a central media hub connected to Bose speakers. Connecting your cable box to the Bose 3-2-1 sound system isn't difficult. It only requires that you have the correct cables for your desired audio and video connection.

Skill level:
Easy

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Things you need

  • Stereo audio cable
  • Digital audio cable (optional)
  • Video cable(s) (optional)

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Instructions

  1. 1

    Purchase a stereo audio cable featuring red and white plugs. If you also want a digital audio connection, purchase a digital audio cable featuring optical or coaxial plugs. To incorporate a video signal, purchase two composite or S-video cables.

  2. 2

    Look on the back of your cable box for red and white "Audio Out" connector ports. If your cable box doesn't have these ports, refer to the Tips section. If a cable is plugged into the ports, unplug the end attached to your TV. If not, push the red and white plugs of your purchased stereo audio cable into the respective ports.

  3. 3

    Push the other plugs into the respective red and white "CBL-SAT Audio In" connector ports on the back of your Bose 3-2-1 home entertainment system media centre---the second three-port vertical row of ports on the left side.

  4. 4

    Find the digital audio optical or coaxial connector port---labelled "Digital Audio Out," "PCM Out," "Optical Out," SPDIF Out" or "Dolby Digital Out"---on the back of your cable box and plug one end of your digital audio cable into the port.

  5. 5

    Insert the other end of your digital cable into the applicable digital "Audio In" port on the back of your Bose 3-2-1 home entertainment media centre.

  6. 6

    Pass your video signal through the media centre by connecting one end of a composite or S-video cable to the back of the cable box and the other to the applicable port "Video In" connector port on the back of the media centre. Connect one end of the second cable to the "Video Out" port on the back of the media centre and the other into the "Video In" port on back of your TV.

Tips and warnings

  • If your cable box doesn't have "Audio Out" ports, connect the red and white plugs of your stereo audio cable to the back of your TV's "Audio Out" ports to establish an audio connection directly from your TV to your Bose media centre. Once connected, connect the plugs at the other end of your stereo audio cable into the "Audio In TV" connector ports at the back of the media centre---the third three-port vertical row of ports on the left side. Set your TV's volume to the lowest setting to protect against speaker echoing between the TV and Bose speakers.
  • Always use the stereo audio cable in addition to a digital audio cable to protect against loss of sound from a digital signal interruption or non-digital programming.
  • Never use composite or S-video cables for video pass video if using an HDMI cable; the respective signal types can't pass through an HDMI cable.

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