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Post by Casey Leedom on Apr 15, 2018 0:53:11 GMT -5
Hhmmm, will either of the new boards coming out for the XMC-1G2 replace the DACs? I wouldn't think so. And I'm guessing that the DACs on the XMC-1G3 will be different. Probably at least for the front three channels (Left/Center/Right) since those will be fully balanced on the XMC-1G3. Perhaps even the same AK4490EN DACs being used in the RMC-1. Maybe I am being dense here, but...it would seem clear the HDMI board upgrade won't impact the DAC's. It's just an HDMI switch, so changing it would not affect DAC's...right? As for the Atmos board, if I understand correctly, that replaces the main processing board which includes all DAC's. So, along with the board change, the chips will at least be replaced if not updated. To what? I don't know. No clue. I've never seen an XMC-1, let alone the insides. The original XMC-1G2 has Texas Instruments Burr-Brown DSD1796 DACs which are no slouch themselves. But I have no idea where those are located on the XMC-1G2 boards. Casey
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Post by cwt on Apr 15, 2018 3:49:50 GMT -5
As I am eagerly awaiting the reboot and release of the XMC-1 I do not have a dedicated processor in my current system. I am watching movies source direct and running audio out of my 7.1 digital outs on my Oppo UDP-203. It doesn’t sound bad at all but I was wondering would I expect a huge improvement in sound, imaging, and video quality once I hook up an XMC-1? The anticipation is killing me so any little taste of what to be expected would be awesome Lefty ; everyone got sidetracked a bit when you said 7.1 digital outs . That implies via hdmi as multichannel digital uses hdmi not what you meant ie 7.1 analogue outs as you explained later. The XMC1 only applies dirac to a digital signal; the multi analogue passthrough is strictly analogue input to output which is handy if comparing the 2 methods . The 203 has no room eq so you foregoe any help from this using the multi analogue outs.. Not to mention any use of dd atmos or dts-x if you intend to upgrade your XMC1 to the new object audio decoder board The metadata is via hdmi .
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Post by foggy1956 on Apr 15, 2018 6:50:55 GMT -5
One time offer! Will trade a UMC-200 even up for a XMC-1 ! This is a great deal,,,,,,,,somebody needs to take me up on it! 👍 Throw in the restaurant and it's a deal😂
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novisnick
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Post by novisnick on Apr 15, 2018 6:56:07 GMT -5
One time offer! Will trade a UMC-200 even up for a XMC-1 ! This is a great deal,,,,,,,,somebody needs to take me up on it! 👍 Throw in the restaurant and it's a deal😂 OK,,,,,,OK,,,,,I’ll throw in dinner fo two! 🙄
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Post by foggy1956 on Apr 15, 2018 7:06:17 GMT -5
Throw in the restaurant and it's a deal😂 OK,,,,,,OK,,,,,I’ll throw in dinner fo two! 🙄 Who does the dishes?
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novisnick
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Post by novisnick on Apr 15, 2018 7:17:25 GMT -5
OK,,,,,,OK,,,,,I’ll throw in dinner fo two! 🙄 Who does the dishes? Your dog! 😁
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Post by petew on Apr 24, 2018 19:11:28 GMT -5
Maybe I am being dense here, but...it would seem clear the HDMI board upgrade won't impact the DAC's. It's just an HDMI switch, so changing it would not affect DAC's...right? As for the Atmos board, if I understand correctly, that replaces the main processing board which includes all DAC's. So, along with the board change, the chips will at least be replaced if not updated. To what? I don't know. No clue. I've never seen an XMC-1, let alone the insides. The original XMC-1G2 has Texas Instruments Burr-Brown DSD1796 DACs which are no slouch themselves. But I have no idea where those are located on the XMC-1G2 boards. Casey The DACs are on the analog board which is not slated to be replaced.
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klinemj
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Post by klinemj on Apr 24, 2018 19:44:02 GMT -5
No clue. I've never seen an XMC-1, let alone the insides. The original XMC-1G2 has Texas Instruments Burr-Brown DSD1796 DACs which are no slouch themselves. But I have no idea where those are located on the XMC-1G2 boards. Casey The DACs are on the analog board which is not slated to be replaced. Are you 100% sure about that? I was thinking the DAC's were on the same board as the board that includes the chips that do the DSP...which, I was thinking was the board that gets replaced with the ATMOS update. I could be wrong, and I don't feel like taking my XMC-1 out of the rack to take its lid off to check. LOL! Mark
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Post by cwt on Apr 25, 2018 7:29:12 GMT -5
The DACs are on the analog board which is not slated to be replaced. Are you 100% sure about that? I was thinking the DAC's were on the same board as the board that includes the chips that do the DSP...which, I was thinking was the board that gets replaced with the ATMOS update. I could be wrong, and I don't feel like taking my XMC-1 out of the rack to take its lid off to check. LOL! Mark I thought the same thing Mark ; dsp and dacs on the processing board ; then I came across this differing configuration on the RMC1 which probably helps isolation wise Some good reason to upgrade methinks emotivalounge.proboards.com/post/844936/thread
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klinemj
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Post by klinemj on Apr 25, 2018 7:59:05 GMT -5
cwtInteresting...now I wish I could remember where that picture of the RMC-1 in a clear case with all its boards wired up was. Mark
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Post by thrillcat on Apr 25, 2018 8:02:34 GMT -5
But since I am now running audio out of the 7.1 outs on the oppo, do you think I will see a “night and day” difference in quality of detail, punch, presence, etc once I add the XMC-1? Not sure the difference between the DACs in the two or if anyone has done a A to B comparison but like I said, it sounds good now. I could be comparing apples to oranges here. Thanks for all of your responses. This depends 99% on your room and how well it is acoustically isolated and treated.
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Post by thrillcat on Apr 25, 2018 8:05:40 GMT -5
I'm still using a UMC-200 and won't be moving to 4K for quite a while but I am very curious if the XMC-1 would offer another level of sound quality. It would have to be substantial for me to spend the money. I went from a UMC-200 to the XMC-1, and the improvement was as great as the improvement when I went from an AVR to the UMC-200.
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Post by petew on Apr 25, 2018 18:28:23 GMT -5
The DACs are on the analog board which is not slated to be replaced. Are you 100% sure about that? I was thinking the DAC's were on the same board as the board that includes the chips that do the DSP...which, I was thinking was the board that gets replaced with the ATMOS update. I could be wrong, and I don't feel like taking my XMC-1 out of the rack to take its lid off to check. LOL! Mark Way back when, there were photos that show pretty clearly how things are set up. Dan even posted pics of the individual boards at one point. I pasted the current back panel pic for reference. Starting from lower left... All the main RCA and XLR jacks are on the analog board at the bottom of the chassis. Moving up to the RCA stereo inputs and outputs, they are on a second board that's connected to the main analog board by a ribbon cable. The secondary board is just connectors, no active circuitry. Next to the RCA I/O are the digital audio in/out jacks and the USB A port. That is the main digital board. It's connected to the main analog board by another ribbon cable. Atop the main digital board sits a daughter card with the DSP engines. The daughter card will definitely be replaced since that's where the DSP chips live, and I'd guess the main digital board gets swapped out too since main and daughter are so closely coupled. To the right of the digital stack is the Linux computer with the ethernet and USB port for updates, and trigger & IR jacks. The top layer is the tuner board and HDMI board. Maybe someone can dredge up better internal pictures. I wish Emotiva would post this kind of technical info.
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novisnick
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Post by novisnick on Apr 25, 2018 18:42:36 GMT -5
Are you 100% sure about that? I was thinking the DAC's were on the same board as the board that includes the chips that do the DSP...which, I was thinking was the board that gets replaced with the ATMOS update. I could be wrong, and I don't feel like taking my XMC-1 out of the rack to take its lid off to check. LOL! Mark Way back when, there were photos that show pretty clearly how things are set up. Dan even posted pics of the individual boards at one point. I pasted the current back panel pic for reference. Starting from lower left... All the main RCA and XLR jacks are on the analog board at the bottom of the chassis. Moving up to the RCA stereo inputs and outputs, they are on a second board that's connected to the main analog board by a ribbon cable. The secondary board is just connectors, no active circuitry. Next to the RCA I/O are the digital audio in/out jacks and the USB A port. That is the main digital board. It's connected to the main analog board by another ribbon cable. Atop the main digital board sits a daughter card with the DSP engines. The daughter card will definitely be replaced since that's where the DSP chips live, and I'd guess the main digital board gets swapped out too since main and daughter are so closely coupled. To the right of the digital stack is the Linux computer with the ethernet and USB port for updates, and trigger & IR jacks. The top layer is the tuner board and HDMI board. Maybe someone can dredge up better internal pictures. I wish Emotiva would post this kind of technical info.
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Post by petew on Apr 25, 2018 18:47:39 GMT -5
Here's a good internal shot and another
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Post by leftycrusher9 on Apr 25, 2018 18:56:58 GMT -5
But since I am now running audio out of the 7.1 outs on the oppo, do you think I will see a “night and day” difference in quality of detail, punch, presence, etc once I add the XMC-1? Not sure the difference between the DACs in the two or if anyone has done a A to B comparison but like I said, it sounds good now. I could be comparing apples to oranges here. Thanks for all of your responses. This depends 99% on your room and how well it is acoustically isolated and treated. I’ve got the wall behind the speakers covered in 2” thick acoustic foam with more foam panels along the side walls. This was not the final speaker placement. I have since spread them out and built a false wall in front of them that holds the 2.35 cinescope AT screen.
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novisnick
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Post by novisnick on Apr 25, 2018 19:02:32 GMT -5
This depends 99% on your room and how well it is acoustically isolated and treated. I’ve got the wall behind the speakers covered in 2” thick acoustic foam with more foam panels along the side walls. This was not the final speaker placement. I have since spread them out and built a false wall in front of them that holds the 2.35 cinescope AT screen. Nice job there! 👍🎶🎶🎶
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klinemj
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Post by klinemj on Apr 25, 2018 20:02:12 GMT -5
Here's a good internal shot and another What you say and the pix make sense. I have some vague older memory of the DAC ships being on the same board as the DSP's, but maybe that was an older design of the XMC-1 or an earlier processor. If you are correct (and it appears you are), then it's a fair assumption that the DAC's will not change with the ATMOS update for the XMC-1. Mark
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Post by cwt on Apr 26, 2018 6:11:16 GMT -5
What you say and the pix make sense. I have some vague older memory of the DAC ships being on the same board as the DSP's, but maybe that was an older design of the XMC-1 or an earlier processor. If you are correct (and it appears you are), then it's a fair assumption that the DAC's will not change with the ATMOS update for the XMC-1. Mark This one seems to put it to bed for where the adc's and dac's are as Pete said ; the bottom pcb Heres a close up of the analog pcb ' somewhere on this is the dacs ; ime not proficient enough to know where
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Post by petew on May 5, 2018 9:11:36 GMT -5
Check out this pic I stumbled across on my PC. This came from the forum, I believe from Dan talking about the RMC-1 development around 3/31/17. The XMC-1 (and I assume RMC-1's very similar) guts are laid bare... - Starting at the upper left corner of the breadboard:
front panel analog I/O with ribbon cable to main analog board - radio tuner with ribbon cable to digital board
- digital board with connections to analog, control, HDMI, tuner. Bundle of yellow wires headed off the pic to the left is probably going to the new digital daughter board with the DSP chips. DSP board normally sits on top of the main digital board. This board looks pretty hacked in this pic, obviously an R & D piece
- Linux control board with ribbon cables to main digital, HDMI and front panel
- HDMI board controlled by the Linux board and sending digital audio to the digital board
- Upper edge of the breadboard working down:
Analog board with ribbon cables to the front panel I/O and main digital board. XLR outputs along the "top" edge. Note the empty ribbon connector right below the JADE logo. That's where all the other RCA jacks are plugged in. - Small board in the center is the "keep alive" power supply so the unit can be woken up with the remote and probably to keep the Linux computer running in standby.
- Power supply
- toroidal transformer
- Front panel
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