Meridian 861 User's Guide download pdf (Page 57)

Configuring the 861

Reference Digital

Surround Controller

Sinewave sweep test

The 861 Reference Digital Surround Controller includes

a sinewave signal test, to help you set the subwoofer

crossover frequencies, or check for room resonances.

Select a PCM source; eg an analogue source or CD.

Press Configure (under the front panel).

The displays shows: CD Sine 80.0Hz

An 80Hz sinewave will be played through all channels.

You can change the test signal using the menu keys,

as described in the following sections.

To change the sweep rate

Press < or > (remote or under the front panel) until

the display shows:

CD Pause 80.0Hz

Press A or V to change the sweep rate and

direction, as follows:

Display Description

CD >> 88.5Hz

Fast sweep up.

CD > 81.5Hz

Slow sweep up.

CD Pause 80.0Hz

Paused.

CD < 78.5Hz

Slow sweep down.

CD << 70.5Hz

Fast sweep down.

The sine sweep will stop when it reaches 0.5Hz or

200Hz.

•

To change the volume

Use the volume keys in the usual way.

Warning: Very loud low-frequency signals may

damage speakers.

To select other test signals

Press < or > (remote or under the front panel) until

the display shows the current signal.

For example:

CD Sine

Press A or V to choose between the following test

signals:

Display Description

CD Sine

A sinewave.

CD Silent

Silence.

CD Input

The source signal in

mono (left + right).

CD Noise

Pink noise (band pass

500Hz to 2kHz for main

channels).

To select the channel

Press < or > (remote or under the front panel) until

the display shows the current channels.

For example: CD All Channels

Press A or V to select a specific channel, or All

Channels.

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Meridian 861 User's Guide Page 57

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