JBL SDP-55 Audio/Video Processor Review

[Sal1950]

The highest quality music releases available anywhere are Blurays with Atmos/Auro3D recordings such as those produced by Morten Lindberg's 2L(whether or not you enjoy the genre, the recording and production is unmatched).

Sure, otherwise David Gilmours - Luck and Strange was just released on BluRay yesterday.
Awesome sounding recording in lossless Dolby Atmos TrueHD.

 

[zzcraft]

Would this coax jitter issue also affecting dante digital output ? I use wiim pro to feed the music stream into sdp-55 through coax input and then processed by sdp55 with Dirac and then output data from dante.

 

[stevenswall]

Would this coax jitter issue also affecting dante digital output ? I use wiim pro to feed the music stream into sdp-55 through coax input and then processed by sdp55 with Dirac and then output data from dante.

Before you buy a unit to use with Dante, you may wish to speak with Harman luxury support.

Starting in April 2022, there has been an issue that is still not fixed to my knowledge, which causes some pops and crackles and issues with Dante.

IMS0024523

That is Harman's internal tracking number for the Dante issue with the JBL SDP 55 and SDP 58.

Many people say they do not have this issue, but I did with any of the dongles that I used from two different companies.

Harman support was not able to resolve it.

If you are only using it for XLR output, then it should be fine.

 

[hwest]

Before you buy a unit to use with Dante, you may wish to speak with Harmon luxury support.

Starting in April 2022, there has been an issue that is still not fixed to my knowledge, which causes some pops and crackles and issues with Dante.

IMS0024523

That is Harmon's internal tracking number for the Dante issue with the JBL SDP 55 and SDP 58.

Many people say they do not have this issue, but I did with any of the dongles that I used from two different companies.

Harman support was not able to resolve it.

If you are only using it for XLR output, then it should be fine.

Can someone explain why Coax is used over some of the newer technologies since we all know HDMI is preferred due to shear speed and signal.

 

[Zooqu1ko]

Can someone explain why Coax is used over some of the newer technologies since we all know HDMI is preferred due to shear speed and signal.

Since you're replying to a message about Dante, I have no idea what you're talking about, since Dante typically uses Ethernet and this nowadays usually means twisted pair cables.

 

[Magnus]

Can someone explain why Coax is used over some of the newer technologies since we all know HDMI is preferred due to shear speed and signal.

HDMI is preferred? For signal? LOL.

https://www.neogaf.com/threads/why-is-hdmi-such-a-******-piece-of-technology.451497/

(You'll have to fix the freaking word filter correction on this one, I guess).

https://www.avsforum.com/threads/hdmi-connector-worst-design-ever.787532/

https://www.reddit.com/r/Filmmakers/comments/65p3fq/why_are_hdmi_connections_so_fragile_and_why_dont

What Moron Designed the HDMI interface and why?

So what were they thinking when they made HDMI. The resolution is worse than VGA/DVI and the scaling sucks. HDMI and computers don't seem to get along very well. Other than sound, what is the advantage? Sharp edges like text, look crappy in HDMI and the image does not fit the screen. Why did...

forums.anandtech.com

Why HDMI Has Been Horrible for Consumers | AV Gadgets

HDMI is often not working as expected. It causes many issues. HDMI has been horrible for consumers. Why? What went wrong? Let's discuss!

avgadgets.com

I could go on and on, but I think you can get the point.

 

[zzcraft]

Before you buy a unit to use with Dante, you may wish to speak with Harman luxury support.

Starting in April 2022, there has been an issue that is still not fixed to my knowledge, which causes some pops and crackles and issues with Dante.

IMS0024523

That is Harman's internal tracking number for the Dante issue with the JBL SDP 55 and SDP 58.

Many people say they do not have this issue, but I did with any of the dongles that I used from two different companies.

Harman support was not able to resolve it.

If you are only using it for XLR output, then it should be fine.

I do experience with pops and crackles initially but I managed to fix it by : 1. set sdp-55 as dante mater clock. 2. always power on sdp-55 first then the rest of the dante devices 3. disable sdp55 auto standby and cec power control.

 

[zzcraft]

I do experience with pops and crackles initially but I managed to fix it by : 1. set sdp-55 as dante mater clock. 2. always power on sdp-55 first then the rest of the dante devices 3. disable sdp55 auto standby and cec power control.

Also there was a pcb patch solution from JBL (i did't verify the source though)

 

[Jonas_h]

I do experience with pops and crackles initially but I managed to fix it by : 1. set sdp-55 as dante mater clock. 2. always power on sdp-55 first then the rest of the dante devices 3. disable sdp55 auto standby and cec power control.

Dante also has a bug on the subwoofer output. If you turn up the volume above 61 the subwoofer channel level is not increased anymore. The other channels are raised as expexted.

Bug is verified by JBL. No fix date.

 

[zzcraft]

Dante also has a bug on the subwoofer output. If you turn up the volume above 61 the subwoofer channel level is not increased anymore. The other channels are raised as expexted.

Bug is verified by JBL. No fix date.

what do you mean by subwoofer channel, are you talking about channel6 specifically or ch13~16 in general. I can verify there is no such issue with channel 13~16. I use 4 subwoofers that map to 13~16 so never noticed such issue

 

[Jonas_h]

Both.
Are you using Dirac? You can cone around the problem by reducing subwoofer gain in the SDP (which Dirac might do). Then you offset the position where it happens.

But the behavior have been verified by me and two others with different Dante gear. And also by JBL. So if you are not seeing it, you need to tell me how you avoided it so I can use Dante

Example here. Red line is LFE pink noise (on subwoofer out) and it stops increasing. Non lfe (on other channels) continue to increase. I routed both signals to the same output to make sure it was not an terror after the SDP.

 

[zzcraft]

Both.
Are you using Dirac? You can cone around the problem by reducing subwoofer gain in the SDP (which Dirac might do). Then you offset the position where it happens.

But the behavior have been verified by me and two others with different Dante gear. And also by JBL. So if you are not seeing it, you need to tell me how you avoided it so I can use Dante

Example here. Red line is LFE pink noise (on subwoofer out) and it stops increasing. Non lfe (on other channels) continue to increase. I routed both signals to the same output to make sure it was not an terror after the SDP.

View attachment 419086

Yes, I use Dante from sdp55 to route audio to qsc audio processor and it is easy to see the actual digital audio level (dBFS)through monitor. I set sub channel(6）as none and map channel 13~16 to 4 subs. Never encountered the issue you described.

 

[Jonas_h]

Yes, I use Dante from sdp55 to route audio to qsc audio processor and it is easy to see the actual digital audio level (dBFS)through monitor. I set sub channel(6）as none and map channel 13~16 to 4 subs. Never encountered the issue you described.

Do you use Dirac?