speakers
The AVR400 allows you to connect up to seven speakers and an active subwoofer in the main system. The output channels correspond to speakers installed in the front left, centre, front right, surround left, surround right, surround back left, surround back right and an active subwoofer.
The configuration and placement of your speakers is very important. All speakers, with the exception of the subwoofer, should be arranged around your normal viewing/listening position. The subwoofer should be placed in a position which gives an even frequency response in all listening positions. Incorrect placement leads to bass boom in some areas. Often the only
way to find a good position for your subwoofer is by experimentation. A good place to start experimenting is close to a wall but at least 1m away from any corners. You can also consult your subwoofer handbook for placement suggestions.
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| Centre |
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| Subwoofer |
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The centre speaker allows for a more | realistic |
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| A subwoofer | will greatly improve the bass performance of | |||||||||||
reproduction of dialogue. The centre speaker |
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| your system. This is useful for reproducing special cinema | |||||||||||||
should have a similar tonal balance to the front |
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| effects, especially where a dedicated LFE (Low Frequency | |||||||||||||
left and right speakers and be positioned at a |
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| Effects) channel is available, as with many discs encoded | |||||||||||||
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| similar height. |
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| with Dolby or DTS technologies. |
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| More than one subwoofer unit may be required for larger | ||||||||
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| installations, particularly in rooms of a timber frame | ||||||||
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| construction. Multiple subwoofers need care in placement | ||||||||
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| because there may be cancellation effects between the | ||||||||
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| units and you may require expert advice. |
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| L |
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| R |
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| C |
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| Front left and right | ||
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| SW |
| Position your front left and right speakers to | ||||||||
SL |
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| SR |
| achieve a good stereo image for normal musical | |||||||
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| reproduction as well as for the multichannel | |||||||||
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| modes. If they are placed too close together there | |
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| will be a lack of spaciousness; if they are placed | |
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| too far apart a stereo image will appear to have a | |
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| large ‘hole’ in the middle and will be presented in | |
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| SBL |
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| SBR | |||||||||
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| two halves. If there is no practical alternative to | ||||||||||
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| placing the speakers widely apart, this effect can | |
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| be overcome in music reproduction by using the | |
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| centre sound extraction from the left and right | |
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| speakers (see Dolby Pro Logic II Music mode). | |
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| Surround back left and right |
| Surround left and right | |||||||||
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| The surround back left and right speakers |
| The surround left and right speakers reproduce | |||||||||
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| are used to add extra depth and better |
| the ambient sound and effects present in a | |||||||||
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| sound localisation and should be installed |
| multichannel home cinema system and should be | |||||||||
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| approximately one metre higher than the |
| installed slightly higher than the listener’s ears. | |||||||||
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| listener’s ears. Place the two surround |
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back speakers such that there is an arc of approximately 150 degrees between each surround back speaker and the centre speaker. The surround back speakers should face the front of the room as shown in the diagram to provide the largest ‘sweet spot’.
