Optimus 31-3042 owner manual Preparing Your Receiver, Positioning Speakers

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Preparing Your Receiver

Caution: Make all the necessary connections before you plug in or turn on the receiver.

Positioning Speakers

a

L R

Midway Point Between Speakers

b

a = b

Normal Listening Point

Surround speakers generally sound best if you position them above ear level.

To avoid interference with the picture on a nearby TV, use magnetically shielded speaker systems. This is par- ticularly important for the center speaker since it is usually located closest to the TV.

Where you place your speakers (not supplied) can make a noticeable difference in your system’s sound. The guidelines in this section will help you choose the best locations. After you use your receiver for a while, you might want to try dif- ferent locations for your speakers.

Bass response depends largely on speaker location. For strong bass, place the speakers in the corners of the room. If you want even stronger bass, place the speakers directly on the floor. If the bass is too strong, move the speakers slightly away from the corners of the room, or raise them 6 to 18 inches off the floor. You can buy speaker stands at your local RadioShack store.

The distance between the speakers should be about the same as the distance between the normal listening point and the point halfway between the speakers. If you place the speakers too close together, you reduce the stereo separation. If you place them too far apart, you reduce the bass effect and create a hole in the middle of the sound.

Most speakers have a tweeter dispersion angle of about 60 degrees. Ideally, your listening position should be just inside the overlap area of the tweeter dis- persion. You can angle the speakers toward you for better stereo effect.

To position your speakers for surround sound, place the front speakers at the front of your listening area, and place the (rear) surround speakers behind or to the sides of the listening point (see “Using Advanced Sound Options” on Page 21). Also, place the center speaker above, below, or behind the TV. Sound might not appear to coincide with the picture if you place it beside the TV.

TV

Front Left

Center Speaker

 

Front Right

 

Speaker

 

 

 

 

Speaker

 

 

Front

 

 

 

 

 

 

Listening

Area

 

 

 

Rear

 

 

Rear Left

Rear Right

 

 

 

Speaker

 

 

 

Speaker

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Contents Audio/Video Receiver Please read before using this equipmentAudio/Video Receiver Introducing the Optimus STAV-3770 Introducing the Optimus STAV-3770 Important Safety Instructions Important Safety Instructions Contents Contents Positioning Speakers Preparing Your ReceiverPreparing Your Receiver Preparing the Speaker Wires Connecting SpeakersPreparing Your Receiver Connecting the Front Speakers Preparing Your Receiver Connecting Surround-Sound Speakers Connecting the Center SpeakerConnecting a Subwoofer Amplifier Preparing Your Receiver Connecting a Turntable Connecting a CD PlayerConnecting Cassette Decks Preparing Your Receiver Connecting a Video Monitor Connecting Video SourcesPreparing Your Receiver Connecting the Antennas AM AntennasFM Antennas Preparing Your Receiver Inner Insulation Center Wire Outer Insulation Shielding Preparing Your Receiver Using One Remote Control for More than One Unit Installing Remote Control’s BatteriesPreparing Your Receiver Connecting to AC Power Using the AC Power OutletPreparing Your Receiver Basic Operation Basic Operation Tuning the Radio Manual and Automatic TuningDirect Access Tuning Remote Control Only Basic Operation Using FM Mono Adjusting BalanceMemory Tuning Basic Operation Bypassing the Sound Controls Remote Control Only Using HeadphonesMuting the Receiver Loudness ControlBasic Operation Dubbing a Cassette Tape Cassette Deck/VCR FeaturesCassette Deck/VCR Features Copying a Video Tape Playing a Video TapeCassette Deck/VCR Features Dolby Pro Logic Surround Using Advanced Sound OptionsDolby 3CH Logic Dolby VirtualUsing Advanced Sound Options Test Tone Center Mode SettingCenter Level Rear LevelUsing Advanced Sound Options Effect Level Delay TimeUsing Advanced Sound Options Using the Remote Control Control Mode ButtonsReceiver/Amplifier Operation Using the Remote Control Cassette Deck Operation CD Player OperationUsing the Remote Control Problem Cause Suggestion TroubleshootingTroubleshooting Care and Maintenance Care and Maintenance FCC Wants You to Know FCC Wants You to Know Specifications AmplifierVideo Section Specifications FM Tuner AM TunerGeneral Specifications Control Index to Features by Control NameIndex to Features by Control Name RadioShack Division of Tandy Corporation Fort Worth, Texas RadioShack Division of Tandy Corporation Fort Worth, Texas