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Meridian Audio G61 manual Using the Sine/Sub/Sens controls, Sinewave sweep test, CD Xover 85Hz

Models: G61

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Using the Sine/Sub/Sens controls

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C a l i b r a t i n g t h e s y s t e m

Using the Sine/Sub/Sens controls

This section explains how to use the Sine/Sub/Sens controls to check for room resonances, adjust the subwoofer crossover frequency, or adjust the sensitivity of the analogue sources.

To display the Sine/Sub/Sens controls

•If necessary, unlock the digital surround controller as described in Configuration Wizard, page 15.

•Press Xovr- or Xovr+ to decrease or increase the crossover frequency.

The display shows the current crossover frequency:

CD Xover 85Hz

Sine -Xover+ -Sens.+

• Press More until the bottom line of the display shows:

Radio Trifield

65

Sine/Sub/Sens. Store Clear

•Press Sine/Sub/Sens.

The bottom line of the display shows the Sine/Sub/Sens controls:

Radio Trifield

65

Sine -Xover+ -Sens.+

For THX loudspeaker systems you should not adjust these settings; they should be left at 80Hz. 80Hz is also the recommended setting for all movie listening. You may prefer, however, to lower the crossover frequency for music if the main speakers have good bass handling down to, say, 50Hz.

Sinewave sweep test

The G61 includes a sinewave signal test, to help you set the subwoofer crossover frequencies, or check for room resonances. To avoid possible damage to the speakers the volume is reduced to 50, if necessary, on entering the test.

Subwoofer crossover frequency

The G61 Digital Surround Controller allows the crossover frequency for any subwoofers which you have to be adjusted between 30 and 150Hz. The crossover can be set independently for Music, Logic, and 5.1 Movie layouts. The default is the THX standard of 80Hz.

To adjust the subwoofer crossover frequency

•Select a source, then display the Sine/Sub/Sens controls as described above.

Warning: This test is very loud. Very loud low-frequency signals may damage the speakers.

To use the sinewave sweep test

•Select a source, then display the Sine/Sub/Sens controls as described above.

•Press Sine to turn on the sinewave signal.

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Meridian Audio G61 Using the Sine/Sub/Sens controls, Sinewave sweep test, Subwoofer crossover frequency, CD Xover 85Hz

Contents

I N S T A L L A T I O N G U I D E M E R I D I A N G S E R I E SG61 Digital Surround Controller Installation GuideRadio interference Safety warningsTo avoid overheating To avoid interferenceContents i P r e f a c e Copyright and acknowledgementsSales and service in the UK Sales and service in the USA1 I n t r o d u c t i o n IntroductionInputs 2 I n t r o d u c t i o n 3 I n t r o d u c t i o n Specifications4 I n t r o d u c t i o n Unpacking Installing the digital surround controllerd i g i t a l s u r r o u n d c o n t r o l l e r Audio inputs6 I n s t a l l i n g t h e 46 TUNER 7 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r BIT #$ 0LAYER3!#$$6$ ! PLAYER 8 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r d i g i t a l s u r r o u n d c o n t r o l l e r Audio outputs9 I n s t a l l i n g t h e 3 PATCH BOX 1 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r $30#$IGITALI3URROUND #ONTROLLER 1 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r Use RZ and LZ if you have two subwoofers 1 I n s t a l l i n g t h ed i g i t a l s u r r o u n d c o n t r o l l e r 3UBWOOFER $IGITALI3URROUND #ONTROLLERd i g i t a l s u r r o u n d c o n t r o l l e r Communications connections1 I n s t a l l i n g t h e 1 I n s t a l l i n g t h e Switch all the units to standbyNot Con AutoConfiguration Wizard Configuring the digital surround controllerType Stage 1 Resetting the product1 Reset settings Reset all settings?Music Sub TypesType SpeakersEither Stage 2 Configuring speakers2 Select speakers EitherDescription Speaker optionsOption Valuesin use Stage 3 Configuring sources3 Configure sources RadioSource options Either Stage 4 Configuring other settings4 Other settings used as necessarySettings Page Introduction Using a Sound Pressure Level meterCalibrating the system Either Left Level +0.0dBWizard complete 2 C a l i b r a t i n g t h e s y s t e mLeft Level +0.0dB Calibration testsLevels DistanceLeft Fine tuningPhase Left DistanceC a l i b r a t i n g t h e s y s t e m Speaker sizeSizes set to zero Left SizeCD Xover 85Hz Using the Sine/Sub/Sens controlsSinewave sweep test Subwoofer crossover frequencyPause CD Sine 80.0Hz88.5Hz 81.5HzDVD Not Analogue Setting up sources1.4V Peak TV 2.0V Clip3 D S P p r e s e t s DSP presetsDSP presets Parameter Standard parametersDefault 3 D S P p r e s e t sMusic DSP presets for two-channelmaterialMusic and Trifield DSP preset parameters 3 D S P p r e s e t sSuper Ambisonics and Super DSP preset parameters3 D S P p r e s e t s AmbisonicsMusicLogic 3 D S P p r e s e t sPLIIx Movie and PLIIx THX PLIIx Movie and PLIIx THX DSP preset parameters3 D S P p r e s e t s Stereo and DirectTV Logic 3 D S P p r e s e t s4 D S P p r e s e t s DSP presets for multichannel material4 D S P p r e s e t s THX DSP preset parametersAmbisonics Using dynamic range control4 D S P p r e s e t s 4 D S P p r e s e t s Defining your own presetsTo save the preset settings 4 D S P p r e s e t s To clear a user-definedpresetStored 4 Tr o u b l e s h o o t i n g TroubleshootingGeneral operating problems Unit is overheating Audio problems4 Tr o u b l e s h o o t i n g Remote not workingSound not clear Audible hiss at high volume settingsConfiguration Program Guide 4 Tr o u b l e s h o o t i n gsource 4 Tr o u b l e s h o o t i n g4 Tr o u b l e s h o o t i n g MaintenanceCleaning 5 Tr o u b l e s h o o t i n g Service and guaranteeService GuaranteeI n d e Index5 I n d e 5 I n d e 5 I n d e