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JBL SDP-55 Audio/Video Processor Review

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.
 
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.
 
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.
 
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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.
 
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.
 
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).





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

1736170221144.png
 
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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.
 
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?
 
Do you use Dirac?
With Dirac the bug is gone. The SPL now stops increasing on all speakers when the volume reaches 70 though. I am getting around this by having more gain in my DSP, which should be ok. I dont hear any issues by adding the gain.
 
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.
You have no pops at all? I have tried all combinations of clock leader and your settings and the best I can achiece is some kinf of pop every 5 minutes.

Edit: have you had your sdp-55 to service to get the dante board reworked?
 
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Dante can be a fantastic connection but it must be strip away all of those XLR , rca , and banana/spades cabling forever from av-receiver or surround preamp up to speakers or multichannel power amp . In a way let’s say from processor must out Dante connection with 7 up to 16 channel with just one Ethernet wire which connect fo first speaker or a MCH power amp then from it or any speaker to next speaker just plug always just one Ethernet cable running around the room until last one is connected . Just for the Two maximum quality main L /R speakers I guess should having an option for connection by XLR if active speakers or Spades if passive . But for all the surround addition channels it must be that easy . The quantity of equipment cabling especially for Dolby atmos is just ridiculous even in a dedicated room . Forget about having it in the home living room . Dante or a very similar connection should terminate and simplify everything because there is the technology while carrying less digital audio jitter . If this not happening soon wireless will take over it . And quality will degrade. Almost every quality brand is stopping to develop new surround processors despite today there is a room for those kind of innovations upgrades to be marketable
 
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Audio jitter = audiophile excuse (inaudible)

Wireless has massive delays that cannot be eliminated.

If you can't handle wiring, listen to earbuds. I'm running 25 speakers Atmos/X/Auro-3D plus subwoofers and 8 processors, two Mini-DSPs and a mixer (including alternate Lexicon MC-1 for Logic 7 and old school THX arrays using 4 sets of surrounds) all with basic RCA and 12 gauge speaker wire with some wire runs over 25 feet in a 12.5'x24'x8.5' room. It wasn't that hard.

No issues.
 
Dante can be a fantastic connection but it must be strip away all of those XLR , rca , and banana/spades cabling forever from av-receiver or surround preamp up to speakers or multichannel power amp . In a way let’s say from processor must out Dante connection with 7 up to 16 channel with just one Ethernet wire which connect fo first speaker or a MCH power amp then from it or any speaker to next speaker just plug always just one Ethernet cable running around the room until last one is connected . Just for the Two maximum quality main L /R speakers I guess should having an option for connection by XLR if active speakers or Spades if passive . But for all the surround addition channels it must be that easy . The quantity of equipment cabling especially for Dolby atmos is just ridiculous even in a dedicated room . Forget about having it in the home living room . Dante or a very similar connection should terminate and simplify everything because there is the technology while carrying less digital audio jitter . If this not happening soon wireless will take over it . And quality will degrade. Almost every quality brand is stopping to develop new surround processors despite today there is a room for those kind of innovations upgrades to be marketable
Dante will not make your setup easier. You need a cable from each speaker back to the rack - you cannot daisy chain Dante with that many components. And in your case with active speakers, you also need power cables to each speaker. I'm not sure I am seeing the benefit you are talking about here. Passive speakers with normal speaker wires would be the simplest solution in a room.

IMO the benefits for Dante:
1. You keep the signal digital if you are using an outboard DSP or if you are using amps with built-in DSP.
2. Rack will be simpler, although it is indeed possible with a clean rack even though you are using XLR

I am using a DSP in my system and Dante does take away some hiss due to removing the extra AD/DA conversion. I am using XLR though as I am getting the famous pop/ticks with Dante in my system :(
 
Audio jitter = audiophile excuse (inaudible)

Wireless has massive delays that cannot be eliminated.

If you can't handle wiring, listen to earbuds. I'm running 25 speakers Atmos/X/Auro-3D plus subwoofers and 8 processors, two Mini-DSPs and a mixer (including alternate Lexicon MC-1 for Logic 7 and old school THX arrays using 4 sets of surrounds) all with basic RCA and 12 gauge speaker wire with some wire runs over 25 feet in a 12.5'x24'x8.5' room. It wasn't that hard.

No issues.
Now I want pictures of your set.. :)
 
Dante will not make your setup easier. You need a cable from each speaker back to the rack - you cannot daisy chain Dante with that many components. And in your case with active speakers, you also need power cables to each speaker. I'm not sure I am seeing the benefit you are talking about here. Passive speakers with normal speaker wires would be the simplest solution in a room.

IMO the benefits for Dante:
1. You keep the signal digital if you are using an outboard DSP or if you are using amps with built-in DSP.
2. Rack will be simpler, although it is indeed possible with a clean rack even though you are using XLR

I am using a DSP in my system and Dante does take away some hiss due to removing the extra AD/DA conversion. I am using XLR though as I am getting the famous pop/ticks with Dante in my system :(
I'm pretty sure (from talking to corporate dante users...) that dante can indeed go through ethernet switches, which means the cabling need not be point to point (star wired) to the rack, it can be star wired to wherever the switch is.

However (also not from personal experience), dante can be very sensitive to switch variations, and many switches do not handle dante well.

Still, in theory, a dante setup could be star wired back to the house IT hub, rather than the audio hub.

I've also seen some daisy chain setups, but similar to the switch sensitivity, it can get flakey!
 
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