Why is there hum in my Meridian 861 system?
To improve measurements, disconnect analogue sources from the analogue input card used for room correction. Reorganize wiring to eliminate the hum loop in your system. Also, hum can be picked up by the microphone/SPL meter lead, so using a shielded cable can help reduce this.
What to do if my Meridian Recording Equipment loudspeaker is running in a non-linear range?
First, verify that the bass protection size is correctly set using the procedure described in Speaker size. Check that the bass drive unit in your loudspeaker is not rubbing and that your amplifier is not clipping. If issues persist, reduce the gain of the channel using the phase/gain tab under speaker layout. Use the reduced gain setting for room correction measurements, then restore the correct level for a calibrated system afterward.
What to do if my Meridian Recording Equipment shows power less than –44?
Check these items: Ensure there was sound from the front left speaker during the test. If unsure, repeat the microphone/SPL meter test. If there's still no sound, check the connections from the 861 to the left loudspeaker. Power cycle the 861, select Calibrate, and confirm the left speaker plays the calibration signal. Also, verify the SPL meter lead is intact, the SPL meter is on and set to the 90dB band (or includes 90dB) with C weighting. If loudspeakers measured less than 75dB SPL during calibration, use the 80dB range. Confirm the SPL meter lead is connected to the chosen connector in the program, and the Sensitivity setting is adequate for the SPL meter or microphone.
General| Brand | Meridian |
|---|---|
| Model | 861 |
| Category | Recording Equipment |
| Language | English |
Explains the role of Digital Signal Processing (DSP) in the controller's audio reproduction.
Details supported audio formats, DSP presets, and speaker layout configurations for multi-channel audio.
Provides a general description of the controller's architecture, MHR Smartlink, inputs, and processing.
Illustrates and explains the functions of each key on the controller's front panel for operation.
Details the various keys on the Meridian System Remote and their corresponding functions.
Provides instructions on how to power the controller on from standby and switch it back to standby.
Guides the user on how to choose and switch between the 12 available audio/video sources.
Details how to adjust the audio volume level and mute/unmute the sound.
Guides on selecting and changing the Digital Signal Processing (DSP) presets for different audio experiences.
Instructs on adjusting the contrast, brightness, and displayed information on the front panel.
Details the procedure to lock or unlock the controller's menus to prevent accidental changes.
Explains how to adjust global and standard DSP parameters like Treble, Bass, and Balance.
Guides on adjusting balance, axis, and relative levels of rear/side speakers for optimal sound staging.
Provides instructions on saving custom DSP parameter configurations as user-defined presets.
Details eight alternative DSP presets designed for reproducing well-recorded music material.
Describes four DSP presets optimized for 2-channel or mono film soundtracks.
Lists and explains DSP presets for multi-channel movie and music sources, including variants like Cinema and THX.
Explains how to select pre-defined configuration Types for common speaker and source setups.
Outlines the built-in calibration process to optimize sound with associated equipment and room acoustics.
Details specific calibration tests like Levels, Distance, Fine Tuning, and Speaker Size for system setup.
Introduces the software for designing custom configurations, covering Setup, Speakers, Presets, Sources, and Cards.
Provides system requirements and step-by-step instructions for installing the configuration software.
Guides on creating and saving a new configuration file for the surround controller using the software.
Details how to specify speaker layout, including number, type, and size of Mains, Centre, Surrounds, and Subwoofers.
Explains how to set up, modify built-in, and create user-defined DSP presets using the configuration software.
Guides on saving, printing, and storing configured settings to the digital surround controller.
Explains how to create and store custom configuration types (User Types) for easy system recall.
Explains the process of measuring room acoustics to create digital filters for sound optimization.
Guides on launching the Room Correction application and initiating the automatic setup process.
Details how to access and view the acoustic measurements performed by the Room Correction program.
Explains how to create new profiles and build filters for each layout based on acoustic measurements.
Guides on numerically or graphically adjusting filter parameters for custom sound tuning.
Provides solutions for common problems encountered during the microphone or SPL meter setup and testing phase.
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