Denon 1905 - AVR AV Receiver Operations Instructions download pdf (Page 36)

ENGLISH

• Set the front speakers, center speaker and

subwoofer in the same positions as in

example (1).

• It is best to place the surround speakers

directly at the side or slightly to the front of

the viewing position, and 60 to 90 cm above

the ears.

• Same as surround back speaker installation

method (1).

Using dipolar speakers for the surround back speakers as well is more effective.

• The signals from the surround channels reflect off the walls as shown on the

diagram at the left, creating an enveloping and realistic surround sound

presentation.

• Set the front speakers with their front

surfaces as flush with the TV or monitor

screen as possible. Set the center speaker

between the front left and right speakers and

no further from the listening position than the

front speakers.

• Consult the owner’s manual for your

subwoofer for advice on placing the

subwoofer within the listening room.

• If the surround speakers are direct-radiating (monopolar) then place them

slightly behind and at an angle to the listening position and parallel to the walls

at a position 60 to 90 cm above ear level at the prime listening position.

• When using two surround back speakers, place them at the back facing the

front at a narrower distance than the front left and right speakers. When using

one surround back speaker, place it at the rear center facing the front at a

slightly higher position (0 to 20 cm) than the surround speakers.

• We recommend installing the surround back speaker(s) at a slightly downward

facing angle. This effectively prevents the surround back channel signals from

reflecting off the monitor or screen at the front center, resulting in interference

and making the sense of movement from the front to the back less sharp.

(2) Setting for primarily watching movies using diffusion type speakers for the surround speakers

For the greatest sense of surround sound envelopment, diffuse radiation speakers such as bipolar types,

or dipolar types, provide a wider dispersion than is possible to obtain from a direct radiating speaker

(monopolar). Place these speakers at either side of the prime listening position, mounted above ear level.

As seen from above

Path of the surround sound

from the speakers to the

listening position

Speaker setting examples

Here we describe a number of speaker settings for different purposes. Use these examples as guides to set up

your system according to the type of speakers used and the main usage purpose.

1. DTS-ES compatible system (using surround back speakers)

(1) Basic setting for primarily watching movies

This is recommended when mainly playing movies and using regular single way or 2-way speakers for the

surround speakers.

Subwoofer

Surround back speakers

Front speakers

60°

Monitor

Center speaker

As seen from above

Surround

speakers

60°

Surround

speaker

Front speaker

60 to

90 cm

As seen from the side

Surround back

speaker

Point slightly

downwards

Surround

speakers

60°

Surround back speakers

Surround

speaker

Front speaker

60 to

90 cm

As seen from the side

Surround back

speaker

Point slightly

downwards

Surround back speakers

A 6.1-channel system is a conventional 5.1-channel system to which the “surround back” (SB) channel has been

added. This makes it easy to achieve sound positioned directly behind the listener, something that was previously

difficult with sources designed for conventional multi surround speakers. In addition, the acoustic image

extending between the sides and the rear is narrowed, thus greatly improving the expression of the surround

signals for sounds moving from the sides to the back and from the front to the point directly behind the listening

position.

FL C

FR FL C

SR chSL ch

SL ch SR ch

SB ch

Change of positioning and acoustic image

with 5.1-channel systems

Movement of acoustic image from SR to SL

Change of positioning and acoustic image

with 6.1-channel systems

Movement of acoustic image from SR to SB to SL

With this set, speaker(s) for 1 or 2 channels are required to achieve a 6.1-channel system (DTS-ES, etc.). Adding

these speakers, however, increases the surround effect not only with sources recorded in 6.1 channels but also

with conventional 2- to 5.1-channel sources. Furthermore, all the DENON original surround modes (see page 28)

are compatible with 7.1-channel playback, so you can enjoy 7.1-channel sound with any signal source.

2 Number of surround back speakers

Though the surround back channel only consists of 1 channel of playback signals for 6.1-channel sources

(DTS-ES, etc.), we recommend using two speakers. When using speakers with dipolar characteristics in

particular, it is essential to use two speakers.

Using two speakers results in a smoother blend with the sound of the surround channels and better sound

positioning of the surround back channel when listening from a position other than the center.

2 Placement of the surround left and right channels when using surround back speakers

Using surround back speakers greatly improves the positioning of the sound at the rear. Because of this, the

surround left and right channels play an important role in achieving a smooth transition of the acoustic image

from the front to the back. As shown on the diagram above, in a movie theater the surround signals are also

produced from diagonally in front of the listeners, creating an acoustic image as if the sound were floating in

space.

To achieve these effects, we recommend placing the speakers for the surround left and right channels slightly

more towards the front than with conventional surround systems. Doing so sometimes increases the

surround effect when playing conventional 5.1-channel sources in the 6.1 surround or DTS-ES Matrix 6.1

mode. Check the surround effects of the various modes before selecting the surround mode.

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Denon 1905 - AVR AV Receiver Operations Instructions Page 36

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