| Author |
Message |
SYC
Joined: 16 May 2006
Posts: 269
|
| Posted: Sat Dec 27, 2008 5:48 pm Post subject: Input signal to XG via Moome HDMI or LumagenHDQ analog? |
|
|
I got a Lumagen HDQ, which has DVI ouput and RGBHV output. My XG has an internal Moome HDMI card. I am wondering which way to go is better, DVI to Moome or RGBHV to XG RGBHV?
SYC
|
|
| Back to top |
|
 |
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
|
| Back to top |
|
|
Mark_A_W
Joined: 15 Mar 2006
Posts: 3068
Location: Sunny Melbourne Australia
|
| Posted: Sat Dec 27, 2008 8:42 pm Post subject: |
|
|
Try them both and see.
$1 on RGBHV. The Moome card is too hot.
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
|
| Back to top |
|
|
Gary M.
Guest
|
| Posted: Sun Dec 28, 2008 1:26 am Post subject: |
|
|
the new Moome HDMI is not too hot, the older DVI was slightly BUT with a scaler you could lower the video contrast and take care of that 100% perfectly
-Gary
|
|
| Back to top |
|
|
SYC
Joined: 16 May 2006
Posts: 269
|
| Posted: Sun Dec 28, 2008 1:31 am Post subject: |
|
|
Mine is the old DVI version. The inside of this question is whose DAC is better. Although Moome's new version has deep color support, it is not necessary for a analog CRT because the anti-alias filter after OP amps will smooth the color. Regarding the gamma boost function, it can be done by HDQ. So in these condition, I don't think there is large difference between the old one and the new one. Most people use HDMI input if they have , but I believe the OP amps should be pretty good in a high-priced VP, so I raise this question. My HDQ is still being shipped and it takes a long time to go, so I can't test this by myself and I hope to get some experience from others to save time when installing it.
SYC
|
|
| Back to top |
|
|
SYC
Joined: 16 May 2006
Posts: 269
|
| Posted: Sun Dec 28, 2008 2:05 am Post subject: |
|
|
| Gary M. wrote: | the new Moome HDMI is not too hot, the older DVI was slightly BUT with a scaler you could lower the video contrast and take care of that 100% perfectly
-Gary |
I don't understand this. Can you tell more? Why does the video cotrast do with the performance of the DVI version? One is analog and the other is digital.
SYC
|
|
| Back to top |
|
|
Nashou66
Joined: 12 Jan 2007
Posts: 16171
Location: West Seneca NY
|
|
| Back to top |
|
|
Gary M.
Guest
|
| Posted: Sun Dec 28, 2008 7:38 am Post subject: |
|
|
| Nashou66 wrote: | What he is saying is you can lower the input signal's "hotness" with the Lumagen's contrast control. This is like lowering the voltage out to the Moome by giving it less to begin with.
Athanasios |
exactly 
-Gary
|
|
| Back to top |
|
|
SYC
Joined: 16 May 2006
Posts: 269
|
| Posted: Mon Dec 29, 2008 4:30 am Post subject: |
|
|
| Gary M. wrote: | | Nashou66 wrote: | What he is saying is you can lower the input signal's "hotness" with the Lumagen's contrast control. This is like lowering the voltage out to the Moome by giving it less to begin with.
Athanasios |
exactly
-Gary |
I am still confused. HDMI only transmits the digital siganl, so the analog voltage output is from Moome's card. It should be limited under the video spec., e.g. 0.7V. So why does Moome's card drive the signal too "hot" so that we have to lower the digital side? If so, this should be a bad design, but I don't find this situation in my DVI version.
By the way, I check the spec. of HDQ. It has 10-bit DAC for analog output, but Moome's DVI version has only 8-bit DAC as mentioned above. It is supposed to be better to input the signal from HDQ, but in fact isn't it?
SYC
|
|
| Back to top |
|
|
SYC
Joined: 16 May 2006
Posts: 269
|
| Posted: Fri Jan 02, 2009 2:39 am Post subject: |
|
|
Any new comment?
SYC
|
|
| Back to top |
|
|
WanMan
Joined: 19 Mar 2006
Posts: 10270
|
| Posted: Fri Jan 02, 2009 10:37 am Post subject: |
|
|
Maybe he is suggesting that the digital signal, which still has a voltage, is too high.
_________________
Trust no one. Absolutely no one. Advice of the board.
|
|
| Back to top |
|
|
SYC
Joined: 16 May 2006
Posts: 269
|
| Posted: Sun Jan 04, 2009 3:02 am Post subject: |
|
|
| WanMan wrote: | | Maybe he is suggesting that the digital signal, which still has a voltage, is too high. |
It is obvious that the digital signal is trasnmitted via voltage. Although it sometimes overshoots, it can work well. This is very normal for digital signal and I have never seen a system can adjust this voltage unless to the board level power adjustmetn.
SYC
|
|
| Back to top |
|
|
Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
|
| Posted: Sun Jan 04, 2009 4:44 am Post subject: |
|
|
I tried exactly this recently. Output of a Lumagen Pro with the latest software via RGBHV 1080p vs the latest HDMI Moome card driven directly. BR player, can't remember what model he had. 9500 Ultra in mint condition.
Very little difference really. I thought the Moome looked slightly better, he thought the analog looked better.\
THe customer is far more up to speed as to the latest firmware, signal processing, etc than I am. He spends quite a bit of time reading up on it.
Bottom line is, the difference between the two is not nearly as noticeable as I figured it would be. It's kinda like auditioning two high end speakers. They sound slightly different, but both are very pleasing.
|
|
| Back to top |
|
|
SYC
Joined: 16 May 2006
Posts: 269
|
| Posted: Sun Jan 04, 2009 9:33 am Post subject: |
|
|
| Curt Palme wrote: | I tried exactly this recently. Output of a Lumagen Pro with the latest software via RGBHV 1080p vs the latest HDMI Moome card driven directly. BR player, can't remember what model he had. 9500 Ultra in mint condition.
Very little difference really. I thought the Moome looked slightly better, he thought the analog looked better.\
THe customer is far more up to speed as to the latest firmware, signal processing, etc than I am. He spends quite a bit of time reading up on it.
Bottom line is, the difference between the two is not nearly as noticeable as I figured it would be. It's kinda like auditioning two high end speakers. They sound slightly different, but both are very pleasing. |
Do you drive the HDMI card directly from the BD player or from the Lumagen output? I ask this because the Lumagen don't support deep color, but the HDMI card support. So if the HDMI card is driven directly from BD player and the deep color fucntion of both is turned on, there might be some noticable difference.
SYC
|
|
| Back to top |
|
|
WanMan
Joined: 19 Mar 2006
Posts: 10270
|
| Posted: Sun Jan 04, 2009 12:08 pm Post subject: |
|
|
I think he implied the HDMI card driven directly from the BD player. Of course, not all BD players are created equally. 
_________________
Trust no one. Absolutely no one. Advice of the board.
|
|
| Back to top |
|
|
Gary M.
Guest
|
| Posted: Mon Jan 05, 2009 12:39 am Post subject: |
|
|
| SYC wrote: | | Curt Palme wrote: | I tried exactly this recently. Output of a Lumagen Pro with the latest software via RGBHV 1080p vs the latest HDMI Moome card driven directly. BR player, can't remember what model he had. 9500 Ultra in mint condition.
Very little difference really. I thought the Moome looked slightly better, he thought the analog looked better.\
THe customer is far more up to speed as to the latest firmware, signal processing, etc than I am. He spends quite a bit of time reading up on it.
Bottom line is, the difference between the two is not nearly as noticeable as I figured it would be. It's kinda like auditioning two high end speakers. They sound slightly different, but both are very pleasing. |
Do you drive the HDMI card directly from the BD player or from the Lumagen output? I ask this because the Lumagen don't support deep color, but the HDMI card support. So if the HDMI card is driven directly from BD player and the deep color fucntion of both is turned on, there might be some noticable difference.
SYC |
blu-ray deep color is nonexistant and if a player has the output ability then it is a mere upconvert mode which should be avoided
use 4:2:2 1080p/24 output from BD players, no conversions after the mpeg decoder output with that
-Gary
|
|
| Back to top |
|
|
|
|
