Meridian G98DH Guide d'installation télécharger pdf (Page 41)

Calibrating

the system

Levels

These tests allow you to adjust the output level to each speaker

individually, and it follows the general guidelines from Dolby

Laboratories and THX.

In each test the display shows the speaker being tested, and the

current relative level. For example:

Left Level +0.0dB

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Press More for help

• Use > and < to move between each of the speakers in the

layout in the sequence: Left, Centre, Right, Side R, Rear R, Rear L,

Side L, and subwoofers.

• Use A and V to adjust the level of the speaker. Ignore any tonal

difference.

For correct THX reproduction you should adjust each speaker to

75dB SPL using an SPL meter. Even if the speakers are not THX

approved this setting is recommended.

If you have Meridian DSP loudspeakers they cannot be set above

+0dB.

Note: You cannot set the level of a subwoofer by ear, because

low-frequency noises sound quieter. To set the subwoofer correctly

either use an SPL meter, or set it by ear and then reduce the

subwoofer gain by 15dB to correct for human hearing.

• When you have completed the Levels section press > to proceed

to the next test.

Distance

These tests allow you to adjust the delay of each of the speakers in

the layout to time-align the system so that sounds are coincident

when they arrive at the listening position.

Before setting up the speaker outputs you need to measure the

distance to each speaker from the listening position:

CentreSub

Left Right

Left

Side

Right

Side

Left Rear Ri

ht RearSurround Sub

Measure from ear height at the listening position to the tweeter

on each speaker (where applicable), in the distance units you have

chosen; see

Settings

, page 33.

Calibration tests

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Meridian G98DH Guide d'installation Page 41

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