Classe Audio VSX-81TXV 02 5 minute guide, Playing a source, Better sound using Phase Control

025 minute guide

Problems when using the Auto MCACC Setup

If the room environment is not optimal for the Auto MCACC Setup (too much background noise, echo off the walls, obstacles blocking the speakers from the microphone) the final settings may be incorrect. Check for household appliances (air conditioner, fridge, fan, etc.), that may be affecting the environment and switch them off if necessary. If there are any instructions showing in the front panel display, please follow them.

•Some older TVs may interfere with the operation of the microphone. If this seems to be happening, switch off the TV when doing the Auto MCACC Setup.

Playing a source

Here are the basic instructions for playing a source (such as a DVD disc) with your home theater system.

4Use the volume control to adjust the volume level. Turn down the volume of your TV so that all sound is coming from the speakers connected to this receiver.

Better sound using Phase Control

This receiver’s Phase Control feature uses phase correction measures to make sure your sound source arrives at the listening position in phase, preventing unwanted distortion and/or coloring of the sound (see illustration below).

P	Front speaker	Listening
H		position
A
S
E		?
C
O
N
T
O	Sound

RECEIVER	SELECTINPUT		SYSTEM OFF
			SOURCE
AV PRE-PROGRAMMED AND LEARNING
REMOTECONTROLUNIT
CD		DVR 2
DVD	TV	DVR1	TVCTRL
CD-R/TAPE	HDMI2	XM RADIO	ROOM 2
iPod	HDMI1	TUNER	RECEIVER
	SLEEP	VIDEO	ANALOG
		SEL	ATT

GUIDE

	TV CONTROL
TVVOL	INPUT	TVCH	VOL
	SELECT
DTVON/OFF	REC	DTVINFO
			MUTE
MPX		REC STOP	JUKEBOX
AUDIO	SUBTITLE	HDD	DVD
DISP		CH	CH
STATUS	SIGNAL SEL	SBch	STEREO
MULTI OPE	THX	STANDARD	ADV.SURR
SHIFT	PHASE	MCACC	S.DIRECT

F	source	Subwoofer
F
P		Front speaker	Listening
			position
H
A
S
E

C

O

N

T

OSound

N source Subwoofer

1Switch on your system components and receiver. Start by switching on the playback component (for

example a DVD player), your TV1 and subwoofer (if you have one), then the receiver (press RECEIVER).

• Make sure the setup mic is disconnected.

2 Select the input source you want to play.

You can use the input source buttons on the remote control, INPUT SELECT, or the front panel controls.2

3 Press S. DIRECT (STREAM DIRECT) to select ‘AUTO SURROUND’ and start playback of the source.3

If you’re playing a Dolby Digital or DTS surround sound DVD disc, you should hear surround sound. If you are playing a stereo source, you will only hear sound from the front left/right speakers in the default listening mode.

•See also Listening to your system on page 26 for information on different ways of listening to sources.

Phase Control technology provides coherent sound

reproduction through the use of phase matching4 for an optimal sound image at your listening position. The default setting is on and we recommend leaving Phase Control switched on for all sound sources.

MULTI OPE THX STANDARD ADV.SURR

SHIFT PHASE MCACC S.DIRECT

RECEIVER

•Press PHASE (PHASE CONTROL) to switch on phase correction.

The PHASE CONTROL indicator on the front panel lights.

Note

1Make sure that the TV’s video input is set to this receiver. (For example, if you connected this receiver to the VIDEO 1 jacks on your TV, make sure that the VIDEO 1 input is now selected.)

2If you need to manually switch the input signal type press SIGNAL SEL (page 29).

3• You may need to check the digital audio output settings on your DVD player or digital satellite receiver. It should be set to output Dolby Digital, DTS and 88.2 kHz / 96 kHz PCM (2 channel) audio, and if there is an MPEG audio option, set this to convert the MPEG audio to PCM.

•Depending on your DVD player or source discs, you may only get digital 2 channel stereo and analog sound. In this case, the receiver must be set to a multichannel listening mode (see Listening in surround sound on page 26 if you need to do this) if you want multichannel surround sound.

4Phase matching is a very important factor in achieving proper sound reproduction. If two waveforms are 'in phase', they crest and trough together, re- sulting in increased amplitude, clarity and presence of the sound signal. If a crest of a wave meets a trough (as shown in the upper section of the diagram above) then the sound will be 'out of phase' and an unreliable sound image will be produced.

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