Meridian UHD722 User Manual
USER GUIDE
UHD722 HDMI PROCESSOR
Meridian UHD722 HDMI Processor User Guide
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Important safety instructions
Read the instructions.
Keep these instructions.
Follow all instructions.
Do not use this apparatus near water.
Clean only with a dry cloth.
Install only in accordance with the manufacturer’s instructions.
Refer all servicing to approved service personnel.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR
MOISTURE.
This apparatus has been designed with Class 1 construction
and must be connected to a mains socket outlet with a
protective earthing connection (the third grounding pin).
This apparatus uses a single-pole power switch. As a result it is
not isolated from AC mains power when switched off at the rear
panel. The apparatus may be isolated from mains power either
by unplugging the power connector from the rear of the unit, or
by unplugging the connector at the opposing end of the power
cord or cable from its supply outlet. As a result, either or both
of these connectors should remain accessible.
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Safety warnings
WARNING!
RISK OF ELECTRIC SHOCK – DO NOT OPEN
ATTENTION!
NE PAS OUVRIR – RISQUE DE DÉCHARGE ÉLECTRIQUE
Caution: to reduce the risk of electric shock, do not remove
cover. No user serviceable parts inside. Refer servicing to
qualified service personnel.
The lightning flash with arrowhead symbol, within an
equilateral triangle, is intended to alert the user to the
presence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is
intended to alert the user to the presence of important
operating and maintenance (servicing) instructions in
the literature accompanying the appliance.
Meridian UHD722 HDMI Processor User Guide
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Climate
The equipment has been designed for use in moderate climates
and in domestic situations.
≤2000m
Only use at an altitude not exceeding 2000m.
Safety warnings
Do not expose the unit to dripping or splashing.
Do not place any object filled with liquid, such as a vase, on
the unit.
Do not place naked flame sources, such as lighted candles,
on the unit.
To avoid overheating
Do not position the product in direct sunlight.
Do not position the product near heat sources, such as a
radiator.
Do not position the product on a soft surface such as a
carpet.
Leave at least 10cm around the product to ensure sufficient
ventilation.
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To avoid interference
Do not position the unit near strong electrical or magnetic
radiation, such as near a power amplifier.
Radio interference
FCC Warning: This equipment generates and can radiate
radio frequency energy and if not installed and used correctly
in accordance with our instructions may cause interference to
radio communications or radio and television reception. It has
been type-tested and complies with the limits set out in Subpart
J, Part 15 of FCC rules for a Class B computing device. These
limits are intended to provide reasonable protection against such
interference in home installations.
EEC: This product has been designed and type-tested
to comply with the limits set out in EN55032:2015 and
EN55024:2010 + A1:2015.
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Meridian UHD722 HDMI Processor User Guide
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Copyright and acknowledgements
Sales and service in the UK
Meridian Audio Ltd, Latham Road, Huntingdon,
Cambridgeshire, PE29 6YE, England.
Tel (01480) 445678
Fax (01480) 445686
Sales and service in the USA
MAI, 351 Thornton Road, Suite 108, Lithia Springs, GA,
30122, United States.
Tel 404-344-7111
Fax 404-346-7111
Designed and manufactured in the UK
Meridian Audio Ltd, Latham Road, Huntingdon,
Cambridgeshire, PE29 6YE, England.
Visit us on the Web
www.meridian-audio.com
Copyright © 2018 Meridian Audio Ltd.
Part no: P88572
Dolby, Dolby Digital, and the double-D symbol are trademarks
of Dolby Laboratories Licensing Corporation. DTS is a
registered trademark of Digital Theatre Systems Inc. HDMI,
the HDMI logo, and High-Definition Multimedia Interface are
trademarks or registered trademarks of HDMI Licensing LLC.
Boothroyd|Stuart Meridian, Meridian, and Meridian Digital
Theatre are registered trademarks of Meridian Audio Ltd.
MHR: This product incorporates patented copyright protection
technology and intellectual property of Meridian Audio Ltd. This
technology is provided for the express purpose of securely
containing copyright audio within the Meridian System only.
Reverse engineering or circumvention of this protection is
strictly prohibited.
The UHD722 incorporates High-Definition
Multimedia Interface (HDMI™) technology.
HDMI, the HDMI Logo and High-Definition Multimedia Interface
are trademarks or registered trademarks of HDMI Licensing
LLC.
Product registration
Register your UHD722 HDMI Processor at:
www.meridian-audio.com
Meridian UHD722 HDMI Processor User Guide
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Contents
Introduction 1
Specifications 3
Unpacking
4
Applications
6
Installing
the UHD722 8
Configuring the UHD722 12
Index
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Meridian UHD722 HDMI Processor User Guide
1
Introduction
The Meridian UHD722 HDMI Processor is the perfect link
between your Meridian system and the latest HDMI-equipped
video sources. The UHD722 supports UHD (Ultra High Definition),
HD (High Definition) and SD (Standard Definition) video.
The UHD722 seamlessly integrates up to seven HDMI sources
into your Meridian system. The UHD722 splits the HDMI
datastream from the selected source into separate audio and
video signals. The video signal can be sent to one or two
display devices while the audio is sent out of the unit free
from the risk of subsequent sonic degradation caused by the
presence of digital video signals.
The UHD722 supports CEC (Consumer Electronics Control)
and ARC (Audio Return Channel). CEC allows you to control
volume, source selection, and standby on the UHD722 from
other CEC-equipped devices. ARC allows you to return digital
audio over the same HDMI cable used to connect to your
display device, such as a television, sending the audio to a
digital surround controller.
Audio processing
The UHD722 features our performance enhancement
technologies, including digital audio upsampling and downsampling,
FIFO buffering, resolution enhancement, and lipsync control.
The UHD722 extracts up to eight channels of high-resolution
audio from the HDMI datastream, supplying them to separate
audio-only outputs, thus minimising signal degradation caused
by harmonic interference from high frequency video signals.
Clock variations, known as jitter, are one of the main causes
of unpleasant “glare” in digital audio systems. The Meridian
UHD722 solves this problem with our proprietary jitter reduction
technique using a FIFO (first-in first-out) buffer that allows an
independent output clock to deliver clock performance that does
not rely upon on the incoming signal quality. This ensures that the
audio extracted from the HDMI stream is of the highest quality.
The MMHR and SmartLink outputs can be set to deliver either
standard (44.1/48 kHz) or high resolution (88.2/96 kHz)
sample rate digital audio, with resolution enhancement of up
to 24-bit. When set to standard rates, the output is either
44.1 or 48 kHz irrespective of the input rate. When set to high
rates, the output is always either 88.2 or 96 kHz, irrespective
of the input rate. Standard sample rates are upsampled using
Meridian’s powerful apodising technology.
The processor also includes a configurable audio delay of up to
85ms to allow lipsyncing, allowing you to ensure that sound is
always in perfect synchronisation with the picture.
Meridian UHD722 HDMI Processor User Guide
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System integration
The UHD722 can easily be integrated with a Meridian audio/
video system. The HDMI input will switch in unison with source
selection on the system controller, by either direct connection or
using the supplied Comms adapter with legacy systems.
Meridian UHD722 HDMI Processor User Guide
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HDMI
Seven HDMI inputs.
Two HDMI outputs:
HDMI Out 1 supports HDMI 2.0, HDCP 2.2, and ARC.
HDMI Out 2 supports HDMI 1.4.
Audio outputs
Meridian SpeakerLink output (RJ45).
8-channel MMHR digital audio out (RJ45).
8-channel SmartLink coax digital audio out (4x phono).
Control signals
DB9M Sub RS232 serial connector.
Meridian SpeakerLink output can be used for Meridian Comms.
Signal processing
The UHD722 uses Meridian’s proprietary DSP software to
provide the following powerful features:
DSP upsampling and apodising filters.
FIFO reclocking.
Lipsync delay.
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Indicators
Illuminated capacitive touch key for Standby/On.
Illuminated capacitive touch keys for source selection.
Physical
Slimline (1U) aluminium case.
Dimensions:
420mm x 41mm x 285mm (16.54" x 1.61" x 11.22")
(W x H x D without feet or connectors).
Weight: 2kg (4.41lb)
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Supplied as the unit on its own or with a rack-mounting kit.
Power
Universal power supply 100-240V AC, 50-60Hz.
10W max.
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Specifications
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