5. FRONT PANEL OPERATION continued …

5.5VOLUME CONTROL

The volume of each Path is controlled separately.

•MAIN: Adjust using the Master Control Knob. If your speaker levels have been calibrated to 75 dB SPL, the THX Reference Level for movie playback is 0 dB, the level at which the film was originally presented in movie theaters (see Dialog Normalization and section 7.4.4).

•ZONE2 or ZONE3: Press ZONE2 or ZONE3, then adjust.

•HEADPHONE: Check that the display reads MAIN, press FRONTS twice, then adjust. MAIN can be set to mute whenever headphones are inserted (see section 7.4.8).

MASTER

CONTROL KNOB

Dialog Normalization:

Dolby Digital program material contains non-audio data which the AVM 30 uses to adjust playback level, when necessary, so that volume variations between movies and programs are eliminated. Without Dialog Normalization, movies not encoded at standardized levels for the dialog could lose dynamic range – higher levels can result in distorted peaks, lower levels can result in quiet sounds disappearing into the noise floor. Dialog Normalization also ensures that Dynamics control (section 5.8.10) works as intended.

If the display reads “Dial Norm Offset -4.0 dB” at the start of a movie, it is indicating that the encoded level is higher than standard by 4.0 dB – the playback level of all channels is then automatically reduced by 4 dB.

Mute:

When MUTE is pressed, the audio of the selected Path is silenced (or reduced – see section 7.4.8). Press MUTE again, or rotate the Master Control Knob to adjust volume, and sound will return. MAIN, ZONE2, ZONE3, and Headphone are muted independently.

•MAIN: Press MUTE.

•ZONE2 or ZONE3: Press ZONE2 or ZONE3, then press MUTE.

•HEADPHONE: Check that the display reads MAIN, press FRONTS twice then press MUTE.

Always make sure you are in the Path that you want to adjust before changing Volume or muting.

5.6SURROUND MODE LEVELS

The AVM 30 memorizes the level of one group of channels relative to another separately for each surround mode (section 5.8), and for the 6-Ch S/E input. To make a change for the surround mode that is currently playing and showing on the display, adjust as follows:

•Fronts: Press FRONTS • , then adjust (this changes Left, Center, and Right levels together).

•Center: Press CENTER, then adjust.

•Surrounds: Press SURR•REARS, then adjust.

•Rears: Press SURR•REARS twice, then adjust.

•Subwoofer Only: Press SUB • LFE, then adjust. Pressing SUB•LFE twice allows you to reduce the level of the ‘.1’ LFE channel while leaving the bass derived from the other channels unchanged. Certain movies exhibit prodigious levels of bass, and may need LFE adjustment.

Note: When listening in Stereo (CD, FM • AM, etc.) with Front speakers set to ‘Large’, the Subwoofer must be set to ‘Super’ if you want it to play (see section 7.4.2).

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