12Additional information

Symptom

Remedy

After using the Auto MCACC

• There may have been some low frequency noise in the room from an air-conditioner, motor, etc. Switch

Setup, the speaker size setting is

off all other appliances in the room and use Auto MCACC Setup again.

incorrect.

• Depending on a number of factors (room size, speaker placement, etc.) this may occur in some cases.

 

You can change the speaker setting manually in Speaker Setting on page 42, and use the ALL (Keep

 

SPsetting) option for the Auto Mode in Automatic MCACC (Expert) on page 33 if this is a recurring

 

problem.

 

 

Can’t adjust the Fine Speaker

• Check that the speakers are all in phase (make sure the positive (+) and negative () terminals are

Distance setting (page 37)

matched up properly).

properly.

 

 

 

The display shows KEY LOCK

• With the receiver in standby, press STANDBY/ON while holding down the TUNER EDIT button to

ON when you try to make

disable the key lock.

settings.

 

 

 

Most recent settings have been

• The power cord was disconnected from the wall while adjusting this setting.

erased.

 

 

 

Professional Calibration EQ graphical output

Symptom

Remedy

The EQ response displayed in the

• There are cases where the graph does not appear flat (even when selecting ALL CH ADJUST in the Auto

graphical output following

MCACC Setup) due to adjustments made to compensate for room characteristics to achieve optimal sound.

calibration does not appear

• Areas of the graph may appear identical (before and after) when there is little or no adjustment needed.

entirely flat.

• The graph may appear to have shifted vertically when comparing before and after measurements.

 

 

EQ adjustments made using the

• Despite level adjustments being made, the filters used for analysis may not display these adjustments in

Manual MCACC setup on

the graphical output. However, these adjustments are taken this into account by the filters dedicated to

page 36 do not appear to change

overall system calibration.

the graphical output.

 

 

 

Lower frequency response

• Low frequencies used in bass management (the subwoofer channel) will not change for speakers that

curves do not seem to have been

have been specified as SMALL in the configuration, or do not output these frequencies.

calibrated for SMALL speakers.

• Calibration is performed, but due to your speakers’ low frequency limitations, no measurable sound is

 

output for display.

 

 

Graphical output data seems to

• If the power is switched off, the measurement data necessary for PC output is cleared.

have disappeared.

 

 

 

Display

Symptom

Remedy

The display is dark or off.

• Press DIMMER on the remote control repeatedly to select a different brightness.

 

 

After making an adjustment the

• Press DIMMER on the remote control repeatedly to select a different brightness.

display goes off.

 

 

 

You can't get DIGITAL to display

• Check the digital connections and make sure that the digital inputs are assigned correctly (see The Input

when using the SIGNAL SELECT

Setup menu on page 58).

button.

• If the multichannel analog inputs are selected, select a different input source.

 

 

The Dolby/DTS indicator doesn't

• These indicators do dot light if playback is paused.

light when playing Dolby/DTS

• Check the playback (especially the digital output) settings of the source component.

software.

 

 

 

When playing a DVD-Audio disc,

• This is not a malfunction. 96 kHz audio from DVD-Audio discs is only output from the analog outputs of

the DVD player display shows

the DVD player. This receiver cannot show the playback sample rate when using the analog inputs.

96 kHz. However, the receiver’s

 

display does not.

 

 

 

During playback of a DTS 96/24

• Make sure that the receiver is set to AUTO or DIGITAL (see Choosing the input signal on page 29).

source, the display doesn't show

 

96 kHz.

 

 

 

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Classe Audio VSX-81TXV-S manual Display, Professional Calibration EQ graphical output

VSX-81TXV-S, VSX-81TXV specifications

The Classe Audio VSX-81TXV and VSX-81TXV-S are flagship home theater receivers that embody the brand’s commitment to delivering high-fidelity audio and immersive cinematic experiences. These models are tailored for audiophiles and home theater enthusiasts seeking uncompromising performance and versatility.

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