Meridian Audio 565 manual Main

Page 41

Main

This test allows you to set the relative phase and the relative delay between the left and right main speakers.

The Low test signal is now presented equally and in phase on just the left and right main speakers; see Test signals, page 44, for details of the signals.

●Use > and < to switch between phase and delay.

When setting phase the display shows the absolute phase of the left speaker.

Left Phs +

For example:

●Use A and V to change the phase.

Choose the correct setting as follows:

Setting

What it sounds like

Correct

A centrally focused sound image which

 

remains stable as you move your head.

Incorrect

An uncomfortable, phasey, diffused

 

image which appears to come from

 

behind you, and which changes

 

dramatically as you move your head.

Unless there is a wiring error in one of the speakers, or an incorrect setting in Speaker Set, the correct setting should be Phs +.

You should not adjust the delay as this has already been specified when you time-aligned the layout.

●Press Store to proceed to the next calibration stage.

Calibrating the system

37

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Contents Meridian 565 Digital Surround Processor Manufactured in the UK by PrefaceContents Calibrating the system Setting up sourcesTroubleshooting Introduction IntroductionThree-channel surround system Layout G or L, No Surrounds Planning a systemIntroduction Introduction Surround system with full-range speakers Layout L Using the 565 with Meridian DSP LoudspeakersUsing a Digital Control Unit Using an analogue preamplifierUsing a LaserDisc player Planning sourcesSetting up the digital surround processor Unpacking Setting up the digital surround processorTo position the digital surround processor Radio interferenceSetting Connecting the digital surround processorRear panel Video connectionsAudio outputs Audio inputsRS232 connection Communications connectionsOn-screen display Connecting videoSetting up the digital surround To connect to Meridian Active Loudspeakers Connecting speakersTo connect to Meridian DSP Loudspeakers eg DSP5000 Subwoofer To connect to a 519 Demodulator Connecting sourcesTo use the digital surround processor as a preamplifier To connect to a 562 or 562V Digital Control Unit Surr Analogue Tape OUT A4 in Audio Inputs Digital Optical To connect to other Meridian 500 Series equipment Connecting to other Meridian equipmentConfiguring the digital surround processor Processor Choosing standard settingsTo select a standard setting Standard settings Specifying the speaker layout How to use the table of speaker layoutsConfiguring the digital surround processor Small main speakers Speaker layouts Digital surround To set the speaker layoutTo define the shape of the speaker layout Configuring the digital surround processor To select a 5.1 LFE subwoofer To set other configuration optionsTo time-align the system Setting up the speaker outputsTo change the settings for a speaker To set up a speaker outputTo select the output type DigitalTo set the output delay Digital surround processor To set up speaker protection for 5.1 sourcesTo specify the output precision To specify the type of subwoofer Calibrating the system Calibrating the systemUsing a Sound Pressure Level meter Using the calibration procedureTo move between the calibration tests To start the calibration procedureTo exit from the calibration procedure Levels Calibration testsMain Centre Phase Front-Rear Surround Sides Subwoofers LRS Other subwoofersSystem ADC CheckWhat next? To test for room vibrations Test signalsTo select a different test signal Setting up sources Setting up sourcesDTS THX Mpeg THX Standard source settingsTo change an option To configure a sourceOption Initial value Alternative values Explanation MPEG, Mpeg THX To change a source label Examples of configuring the sourcesTo use a source key to change DSP preset To set up a system with two Meridian CD players Setting up sources Troubleshooting TroubleshootingStandby point not lit General operating problemsRemote not working Communications not working with other Meridian productsHum on analogue input Audio problemsPoor sound quality There is radio interferenceCrackling on optical inputs Audible hiss at high volume settingsCentre not working There is a hiss when starting DTS LaserDiscsSound not clear TV does not work using Poor picture quality Video problemsIndex IndexLayouts Optical Types
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565 specifications

The Meridian Audio 565 is a landmark in the realm of high-fidelity audio processing. Launched as a digital surround sound processor, it has captivated audiophiles and home theater enthusiasts with its innovative technology and exceptional sound quality. The 565 serves as a definitive solution for those looking to enhance their audio experience, boasting a range of features that solidify its status in the industry.

One of the main features of the 565 is its advanced digital signal processing capabilities. It utilizes Meridian’s proprietary Apodizing filter technology, which significantly improves frequency response and effectively reduces time-domain distortion. This technology enables precise sound reproduction, allowing listeners to experience their favorite music and movies as intended by the creators.

The Meridian 565 is equipped with multiple inputs and outputs, supporting various audio formats. It features both balanced and unbalanced audio connections, ensuring compatibility with a wide range of audio equipment. This flexibility allows users to seamlessly integrate the 565 into their existing audio systems, whether they are aiming for stereo or surround sound configurations. The device supports multi-channel audio formats, giving users the opportunity to experience immersive soundscapes.

Another noteworthy characteristic of the 565 is its user-friendly interface. It comes with a well-organized remote control and an intuitive on-screen display that simplify the process of configuring and operating the device. Users can easily adjust settings, switch between different input sources, or fine-tune audio parameters to suit their personal preferences.

The build quality of the Meridian 565 is also commendable. Typically housed in a robust chassis, the device is designed to minimize interference from external electromagnetic sources, thus preserving audio integrity. This attention to detail in construction reiterates Meridian’s commitment to delivering high-performance audio solutions.

In conclusion, the Meridian Audio 565 is an exceptional digital surround sound processor that combines advanced technology with user-friendly features. Its unique technologies, such as Apodizing filtering, flexible connectivity options, and robust build quality, make it a top choice for audiophiles and home theater enthusiasts alike. Whether for casual listening or an immersive cinematic experience, the 565 stands as a testament to Meridian's dedication to excellence in audio engineering.
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