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Surround Sound
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 derived from the presence of digital video signals.
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UHD722
The Meridian UHD722 HDMI Processor is the perfect link between your Meridian system and the latest HDMI-equipped video sources. The UHD722 effortlessly splits the HDMI datastream from the selected HDMI source into separate audio and video signals; meaning that audio is sent out of the unit free from the risk of subsequent sonic degradation derived from the presence of digital video signals.
Meridian Q-Sync deploys Meridian's multiple “First In, First Out” buffering system which minimises jitter, ensuring perfect timing and improved clarity.
Meridian True Link is an encryption method for transferring high-definition digital audio over SPDIF connections. It allows secure movement of digital audio whilst ensuring that the SPDIF clock signal can be transmitted with minimum degradation.
True Time is Meridian's proprietary Apodising Filter that avoids pre-ringing and cleans up the effects of early filters, converting pre-echo to post-echo.
Seven inputs and two outputs for simple, high-performance HDMI switching between sources.
Discreet and easy to install 1U form factor with rack kit.
Lip-Sync adjustment allows sound to be aligned with image to compensate for delays incurred by processing through the video chain.
Meridian’s HDMI Audio Processor provides the perfect link between your Meridian system and the latest HDMI-equipped video sources.
The UHD722 which supports UHD (Ultra High Definition), HD (High Definition) and SD (Standard Definition) video. It can seamlessly integrate 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 derived from the presence of digital video signals. Meridian’s HDMI Processor is an integral part of any HDMI cinema system. When used in conjunction with Meridian DSP Loudspeakers, the integrated system provides the ultimate multi-channel audio experience to accompany any video source.
Here you will find a quick overview of the product highlights and features.
Here you will find installation information and operating instructions.
Here you will find a summary of the complete range of Meridian products in one document.
CONNECTIONS
Power input (IEC Connector)
DB9M Sub RS232 serial connector
Meridian SpeakerLink output (RJ45)
Seven HDMI inputs, five of which are HDCP 2.3 compatible, and all of which are CEC compatible
Two HDMI outputs; both of which are HDCP 2.3 compatible, and one of which supports ARC
8-channel MMHR digital audio out (RJ45)
8-channel coax digital audio out (4 x phono)
DISPLAY
Illuminated capacitive touch key for Standby/On
Illuminated capacitive touch keys for source selection
DIMENSIONS / WEIGHT
HEIGHT: 41mm [1.61in]
WIDTH: 420mm [16.54in]
DEPTH: 285mm [11.22in]
WEIGHT: 2kg [4.41lb)
POWER
Internal universal power supply 100-250V AC
Maximum power consumption: <10W
The specification of the UHD722 was changed when the internal hardware of the UHD722 was revised in December 2021. All units with serial numbers above 201000 feature the newer hardware. Therefore, two sets of FAQs are shown here; the first set relates to the later hardware, the second set covers the earlier hardware. Check the serial number of your unit prior to referring to the information below.
1. (later hardware) Does the UHD722 handle '4K' and 'UHD' video material?
The terminology surrounding higher resolution video can cause confusion. There is a plethora of standards and specifications relating to the subject and '4K' and 'UHD' are often used as generic terms to denote higher resolution video material. Technically speaking, the UHD722 handles video within the specification of HDMI 2.0b. In practice this means that the UHD722 is compatible with most consumer products which are designated as '4K' or 'UHD'.
2. (later hardware) Are all seven HDMI inputs identical in their compatibility with UHD/HDMI 2.0 sources – as compared to the earlier HDMI 1.4a specification?
No. To provide flexibility in the variety of sources that can be used with the UHD722, HDMI inputs 1, 2, 3, 4 and 6 support HDCP 2.3, and have been designed for best compatibility with UHD/HDMI 2.0b sources. Inputs 5 and 7 have been designed for best compatibility with legacy devices that use the earlier HDMI 1.4a standard (DVD players, HD satellite boxes etc.) So, if you have an older device which is having issues with its picture or sound, ensure it is connected to input 5 or 7 and the UHD722 is configured accordingly.
3. (later hardware) What is HDMI 2.0?
HDMI 2.0, which is backwards compatible with earlier versions of the HDMI specification, significantly increases bandwidth up to 18 Gbps and adds key enhancements to support market requirements for enhancing the consumer video and audio experience.
4. (later hardware) Which versions of HDMI and HDCP do the HDMI outputs support?
Both outputs support HDMI 2.0b and HDCP2.3.
5. (later hardware) When UHD material is played through the UHD722, what video is sent out of HDMI Out 1 and HDMI Out 2?
The behaviour of the outputs is determined by the design and behaviour of all the products in the chain from source to display. Signals sent over HDMI are encrypted and the UHD722 takes part in a sequence of 'handshaking' between all the products in the chain and this will determine which video signal is displayed. In practice, this means some product combinations will result in UHD video being output from HDMI Out 1 while HDMI Out 2 will go blank while other combinations will result in 1080p (2K) video being sent out of both HDMI outputs.
6. (later hardware) Can I feed two display devices simultaneously with UHD video?
Yes.
7. (later hardware) Does the UHD722 handle 3D video?
Yes. 3D video was part of the HDMI 1.4 specification and the UHD722 complies with HDMI 2.0b which encompasses HDMI 1.4.
8. (later hardware) Is the UHD722 compliant with HDMI 1.4?
Yes. The UHD722 complies with HDMI 2.0b which encompasses HDMI 1.4.
9. (later hardware) Does the UHD722 support HDR10+?
Yes.
10. (later hardware) Does the UHD722 support Dolby Vision?
Yes, HDMI Out 1 supports Dolby Vision. HDMI Out 2 does not support Dolby Vision.
11. (later hardware) Does the UHD722 support DSD?
No.
12. (later hardware) Does the UHD722 support eARC?
No.
13. (later hardware) Can the UHD722 decode 5.1 audio streams such as Dolby Digital or DTS?
No. These streams can be handled by the product, but they are passed to the audio outputs without being decoding, so the device 'downstream' of the UHD722 would need to be capable of decoding them.
14. (later hardware) Can the UHD722 decode Dolby TrueHD or DTS Master Audio?
The UHD722 cannot decode these streams itself, but its inclusion in a system can allow these lossless streams to be played in an optimal way.
15. (later hardware) When using a source which can play Dolby TrueHD or DTS Master Audio, how should I set the source’s output to best feed the UHD722?
The source should be set to output PCM. The terminology used in the set-up menus can vary, but the vast majority of such sources feature the ability to do this.
16. (later hardware) What is the 'SpeakerLink Out' socket for?
This connection provides a Meridian comms connection to allow the UHD722 to be integrated within a Meridian system. The connection can be carried out in two ways:
i. The UHD722 can be directly connected to an otherwise unused SpeakerLink input on another product using a network-type cable.
ii. The UHD722 can be connected to a DIN-type Meridian comms socket on another product in the rack using the Meridian Comms Adapter – supplied with the product. The adapter has an RJ45 socket which accepts a SpeakerLink cable and 5-pin DIN socket for a Meridian 5C lead.
17. (later hardware) One or more of the source products in my system is relatively cheap. Can I be sure that the way it converts lossless formats into PCM is up to the job in the context of my high-end AV system?
Yes. The methods used by source products to access and decode lossless streams can be compared to the way a compressed file is extracted and read by a computer. Sources do not vary in this regard, so the purchase price has no direct bearing on this aspect of the source’s performance. There is understandable scepticism to this fact in some quarters due to the residual knowledge that the quality of decoding earlier formats, such as those from DVD-Video, could vary according to the design of the source product.
18. (later hardware) Can I connect the SpeakerLink output to the SpeakerLink input on my Meridian Digital Active Loudspeakers?
The SpeakerLink output of the UHD722 carries digital audio only when fed from the ARC (Audio Return Channel). It falls silent when any of the standard HDMI inputs are selected. Hence, if the UHD722 is to be used to provide a two-channel signal, a single digital interconnect fed from the '1/2' phono (RCA) socket should be used. If feeding a pair of Meridian loudspeakers which have only SpeakerLink inputs, then a Meridian AC12 adapter can be used to convert the connection type. In such an arrangement, the AC12 also provides a suitable connection for Meridian comms to be fed from the UHD722 via the Meridian Comms Adapter - supplied with the product.
19. (later hardware) Can I connect the MMHR Output to the SpeakerLink input on my Meridian Digital Active loudspeakers?
No. Although the two sockets mentioned are the same physical type, the signals they carry are not compatible. The MMHR Output socket on the UHD722 is intended to be connected to a suitably-equipped Meridian surround controller, rather than a DSP loudspeaker.
20. (later hardware) My Meridian surround controller has a multi-channel digital input in the form of three phono (RCA) sockets but not the RJ45 type of socket used on newer products. How do I configure and connect the UHD722 to use this input?
Within the set-up program, under the 'Audio' tab within 'Properties' of the UHD722, the setting 'Linear PCM' should be set to '6 Ch'. Three digital interconnect leads should be connected between the two units. On the UHD722, the outputs labelled '1/2', '3/4' and '7/8' should be connected to the 'L/R', 'C/LFE' and 'SURR' input sockets respectively on the surround controller.
21. (later hardware) I’ve inserted an UHD722 between a source and a display-device which previously worked just fine, but now I have a problem with the picture. Why is this?
The addition of any device to an HDMI set-up can introduce the possibility of a compatibility issue. The handshaking and encryption used by HDMI is particular prone to vagaries with various cable types. If any cables are over the maximum seven metres laid out by the HDMI specification, then they may work in one combination, but not another. If problems arise, alternative cables should be tried. Further to that, it may be necessary to substitute any conventional HDMI cable over seven metres in length with one of the proven installation solutions which send HDMI over alternative connection methods, such as network cables. It should be note that the seven metre limit also applies to the total length of any combination of cables linked by HDMI couplers.
22. (later hardware) Does the UHD722 simply pass EDID information unchanged from the display device to the source product?
No. The UHD722 takes the EDID information relating to video capabilities from the display device and combines it with EDID information determined by the audio configuration of the UHD722. The audio capabilities of the display are ignored. This causes the source product to send video appropriate for the display along with audio appropriate for the audio product being used with the UHD722. The UHD722 separates the audio and video signals and outputs them from the relevant sockets.
23. (later hardware) Does the UHD722 support ARC?
Yes. HDMI Out 1 supports ARC.
24. (later hardware) Does audio derived from ARC benefit from the full range of audio enhancements the UHD722 offers?
No. Audio fed to the UHD722 via ARC is routed directly to the product’s SpeakerLink output bypassing the DSP processing used to enhance sound-quality on other audio outputs.
25. (later hardware) I’m having problems getting a picture with Ultra HD material, but 1080p material is fine. What could be causing this?
The most common cause of this problem relates to the capabilities of HDMI cables. Many cable specifications include terms such as '4K' or '4K ready'. However, '4K' is not a standard, it is a resolution. UHD (Ultra High Definition) IS a standard which encompasses, amongst other things, HDCP 2.2, 3840x2160 resolution, colour space, frame rate and dynamic range. This pushes the bandwidth required up to 18.2 Gbps. '4K' does not require HDMI 2.0 or HDCP 2.2, UHD absolutely DOES require both of these features. You should check all cables in the signal path comply with all requisite standards. This advice also applies to any HDMI extension products (sometimes referred to as 'baluns') used in the path. Many of these do not comply with the standards required.
26. (later hardware) Does HDMI 2.0 support BT.2020 (rec.2020) colorimetry?
Yes. HDMI 2.0 includes support for BT.2020 colorimetry with 10 bits of colour depth.
Video formats defined in BT.2020 and supported by HDMI 2.0 specification:
• 2160p, 10/12 bits, 24/25/30Hz, RGB/4:2:2/4:4:4
• 2160p, 10/12 bits, 50/60Hz, 4:2:0/4:2:2
1. (earlier hardware) Does the UHD722 handle '4K' and 'UHD' video material?
The terminology surrounding higher resolution video can cause confusion. There is a plethora of standards and specifications relating to the subject and '4K' and 'UHD' are often used as generic terms to denote higher resolution video material. Technically speaking, the UHD722 handles video within the specification of HDMI 2.0b. In practice this means that the UHD722 is compatible with most consumer products which are designated as '4K' or 'UHD'.
2. (earlier hardware) Does the UHD722 support HDR10?
Yes.
3. (earlier hardware) Which version of HDCP is supported by the HDMI inputs?
All seven inputs support HDCP 2.2.
4. (earlier hardware) Are all seven HDMI inputs identical in their compatibility with UHD/HDMI 2.0 sources – as compared to the earlier HDMI 1.4a specification?
No. To provide flexibility in the variety of sources that can be used with the UHD722, HDMI inputs 1, 2, 3, 4 and 6 have been designed for best compatibility with UHD/HDMI 2.0 sources. Inputs 5 and 7 have been designed for best compatibility with legacy devices that use the earlier HDMI 1.4a standard (DVD players, HD satellite boxes etc.) So, if you have an older device which is having issues with its picture or sound, ensure it is connected to input 5 or 7 and the UHD722 is configured accordingly.
5. (earlier hardware) What specification of HDMI does 'HDMI Out 1' support?
HDMI Out 1 supports HDMI 2.0b and HDCP2.2.
6. (earlier hardware) What specification of HDMI does 'HDMI Out 2' support?
It supports HDMI 1.4 rather than HDMI 2.0b, so it supports up to 1080p and cannot output UHD material.
7. (earlier hardware)When UHD material is played through the UHD722, what video is sent out of 'HDMI Out 1' and 'HDMI Out 2'?
The behaviour of the outputs is determined by the design and behaviour of all the products in the chain from source to display. Signals sent over HDMI are encrypted and the UHD722 takes part in a sequence of 'handshaking' between all the products in the chain and this will determine which video signal is displayed. In practice, this means some product combinations will result in UHD video being output from 'HDMI Out 1' while 'HDMI Out 2' will go blank while other combinations will result in 1080p (2K) video being sent out of both HDMI outputs.
8. (earlier version) Can I feed two display devices simultaneously with UHD video?
The UHD722 alone does not feature the connectivity to do this. One method for achieving such functionality would be to use an external HDMI 'splitter'. This device, which would need to be HDCP 2.2 compliant, could be fed from the output 'HDMI Out 1'.
9. (earlier hardware) Does the UHD722 handle 3D video?
Yes. 3D video was part of the HDMI 1.4 specification and the UHD722 complies with HDMI 2.0b which encompasses HDMI 1.4.
10. (earlier hardware) Is the UHD722 compliant with HDMI 1.4?
Yes. The UHD722 complies with HDMI 2.0b which encompasses HDMI 1.4.
11. (earlier hardware) Can the UHD722 decode 5.1 audio streams such as Dolby Digital or DTS?
No. These streams can be handled by the product, but they are passed to the audio outputs without being decoding, so the device “downstream” of the UHD722 would need to be capable of decoding them.
12. (earlier hardware) Can the UHD722 decode Dolby TrueHD or DTS Master Audio?
The UHD722 cannot decode these streams itself, but its inclusion in a system can allow these lossless streams to be played in an optimal way.
13. (earlier hardware) When using a source which can play Dolby TrueHD or DTS Master Audio, how should I set the source’s output to best feed the UHD722?
The source should be set to output PCM. The terminology used in the set-up menus can vary, but the vast majority of such sources feature the ability to do this.
14. (earlier hardware) One or more of the source products in my system is relatively cheap. Can I be sure that the way it converts lossless formats into PCM is up to the job in the context of my high-end AV system?
Yes. The methods used by source products to access and decode lossless streams can be compared to the way a compressed file is extracted and read by a computer. Sources do not vary in this regard, so the purchase price has no direct bearing on this aspect of the source’s performance. There is understandable scepticism to this fact in some quarters due to the residual knowledge that the quality of decoding earlier formats, such as those from DVD-Video, could vary according to the design of the source product.
15. (earlier hardware) What is the 'SpeakerLink Out' socket for?
This connection provides a Meridian comms connection to allow the UHD722 to be integrated within a Meridian system. The connection can be carried out in two ways:
i. The UHD722 can be directly connected to an otherwise unused SpeakerLink input on another product using a network-type cable.
ii. The UHD722 can be connected to a DIN-type Meridian comms socket on another product in the rack using the Meridian Comms Adapter – supplied with the product. The adapter has an RJ45 socket which accepts a SpeakerLink cable and 5-pin DIN socket for a Meridian 5C lead.
16. (earlier hardware) Can I connect the SpeakerLink output to the SpeakerLink input on my Meridian Digital Active loudspeakers?
The SpeakerLink output of the UHD722 carries digital audio only when fed from the ARC (Audio Return Channel). It falls silent when any of the standard HDMI inputs are selected. Hence, if the UHD722 is to be used to provide a two-channel signal, a single digital interconnect fed from the '1/2' phono (RCA) socket should be used. If feeding a pair of Meridian loudspeakers which have only SpeakerLink inputs, then a Meridian AC12 adapter can be used to convert the connection type. In such an arrangement, the AC12 also provides a suitable connection for Meridian comms to be fed from the UHD722 via the Meridian Comms Adapter - supplied with the product.
17. (earlier hardware) Can I connect the MMHR Output to the SpeakerLink input on my Meridian Digital Active loudspeakers?
No. Although the two sockets mentioned are the same physical type, the signals they carry are not compatible. The MMHR Output socket on the UHD722 is intended to be connected to a suitably-equipped Meridian surround controller, rather than a DSP loudspeaker.
18. (earlier hardware) My Meridian surround controller has a multi-channel digital input in the form of three phono (RCA) sockets but not the RJ45 type of socket used on newer products. How do I configure and connect the UHD722 to use this input?
On the set-up program, under the 'Audio' tab within 'Properties' of the UHD722, the setting 'Linear PCM' should be set to '6 Ch'. Three digital interconnect leads should be connected between the two units. On the UHD722, the outputs labelled '1/2', '3/4' and '7/8' should be connected to the 'L/R', 'C/LFE' and 'SURR' input sockets respectively on the surround controller.
19. (earlier hardware) I’ve inserted an UHD722 between a source and a display-device which previously worked just fine, but now I have a problem with the picture. Why is this?
The addition of any device to an HDMI set-up can introduce the possibility of a compatibility issue. The handshaking and encryption used by HDMI is particular prone to vagaries with various cable types. If any cables are over the maximum seven metres laid out by the HDMI specification, then they may work in one combination, but not another. If problems arise, alternative cables should be tried. Further to that, it may be necessary to substitute any conventional HDMI cable over seven metres in length with one of the proven installation solutions which send HDMI over alternative connection methods, such as network cables. It should be note that the seven metre limit also applies to the total length of any combination of cables linked by HDMI couplers.
20. (earlier hardware) Does the UHD722 simply pass EDID information unchanged from the display device to the source product?
No. The UHD722 takes the EDID information relating to video capabilities from the display device and combines it with EDID information determined by the audio configuration of the UHD722. The audio capabilities of the display are ignored. This causes the source product to send video appropriate for the display along with audio appropriate for the audio product being used with the UHD722. The UHD722 separates the audio and video signals and outputs them from the relevant sockets.
21. (earlier hardware) Does the UHD722 support ARC?
Yes. 'HDMI Out 1' supports ARC.
22. (earlier hardware) Does audio derived from ARC benefit from the full range of audio enhancements the UHD722 offers?
No. Audio fed to the UHD722 via ARC is routed directly to the product’s SpeakerLink output bypassing the DSP processing used to enhance sound-quality on other audio outputs.
23. (earlier hardware) I’m having problems getting a picture with Ultra HD material, but 1080p material is fine. What could be causing this?
The most common cause of this problem relates to the capabilities of HDMI cables. Many cable specifications include terms such as '4K' or '4K ready'. However, '4K' is not a standard, it is a resolution. UHD (Ultra High Definition) IS a standard which encompasses, amongst other things, HDCP 2.2, 3840x2160 resolution, colour space, frame rate and dynamic range. This pushes the bandwidth required up to 18.2 Gbps. '4K' does not require HDMI 2.0 or HDCP 2.2, UHD absolutely DOES require both of these features. You should check all cables in the signal path comply with all requisite standards. This advice also applies to any HDMI extension products (sometimes referred to as 'baluns') used in the path. Many of these do not comply with the standards required.
24. (earlier hardware) What is HDMI 2.0?
HDMI 2.0, which is backwards compatible with earlier versions of the HDMI specification, significantly increases bandwidth up to 18 Gbps and adds key enhancements to support market requirements for enhancing the consumer video and audio experience.
25. (earlier hardware) Does HDMI 2.0 support BT.2020 (rec.2020) colorimetry?
Yes. HDMI 2.0 includes support for BT.2020 colorimetry with 10 bits of colour depth.
Video formats defined in BT.2020 and supported by HDMI 2.0 specification:
• 2160p, 10/12 bits, 24/25/30Hz, RGB/4:2:2/4:4:4
• 2160p, 10/12 bits, 50/60Hz, 4:2:0/4:2:2