RQV Reon-VX versus Faroudja DCDi for video processing/upscaling

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Is the RQV Reon-VX chip used in the Onkyo clearly superior to the Faroudja DCDi chip used in the mainstream Denon models for video processing/upscaling? And is the performance gap so significant that it is clearly noticable?

I noticed that ony the Denon 5308 upwards uses the RQV Reon-VX chips so I would presume that they are better than the Faroudja chips used the cheaper models. I wonder how Onkyo manages to install that chip in the Onkyo 875 then as it costs a fraction of the price when compared to the Denon 5308.
 
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Anonymous

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I believe the RQV Reon-VX chip is superior to the Faroudja DCDi chip and is usually found on higher end models.
 
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That's what I thought but I have no idea how this actually translates to reality. Need the experts here to give us some pointers on whether it's worth it to spend more $$$ on a player that uses the RQV chip. Anybody have any idea what chip the Yamaha 1800 and 3800 uses?
 

FuzzyinLondon

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What TV are you looking to hook the amp up to Seakingadvice? The reason I ask this is because I know you were interested in the Pioneers but I wasn't sure whether you bought one. If it is for a Pioneer then buy an amp purely for its audio ability. The quality of de-interlacing and scaling on the Kuros almost totally negates the the need for an external scaler.
 
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Hi Fuzzy,
I finally got my hands on a Pioneer 428XD. So you think the scaling on the Kuro is good enough? Somehow, I got the impression that the Onkyo 875 was able to provide superior upscaling due to the RQV chip. And given its price, it seemed like a steal compared to the other brands. I currently don't plan to invest in Blu-Ray anytime soon so all of the stuff that I watch would be SD which would require scaling.
 

FuzzyinLondon

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The Onkyo 875 is a good buy, absolutely no doubt about it. Even just from an audio point of view, it's worth it. I do think though that the scaling on the Pioneer is better purely because it is optimised to scale for it's own 1024x768 rectangular pixel resolution. If you upscale an SD source, you're basically going from 576i to 1080p and then downscaled by the Pio. It's an unnecessary scaling step. Personally, I still think it will still look good as the Reon chip is that good that it's unlikely to introduce artifacts but I doubt you will notice any difference from if you'd just fed a pure 576i signal to the tv it the first place. By all means try it out though. I'd be interested in you findings. Maybe one of the team can weigh in too.
 
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And they're only 599 on ebay which means they're gotta be cheaper elsewhere.
 

Hems

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If you connect a receiver (using composite/s-video) which uses either of these processing chips to a sky+ box is the picture going to be any better than connecting the sky box directly to a tv using RGB scart? I have a sony 40w3000 by the way.
 
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Anonymous

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FuzzyinLondon:The Onkyo 875 is a good buy, absolutely no doubt about it. Even just from an audio point of view, it's worth it. I do think though that the scaling on the Pioneer is better purely because it is optimised to scale for it's own 1024x768 rectangular pixel resolution. If you upscale an SD source, you're basically going from 576i to 1080p and then downscaled by the Pio. It's an unnecessary scaling step. Personally, I still think it will still look good as the Reon chip is that good that it's unlikely to introduce artifacts but I doubt you will notice any difference from if you'd just fed a pure 576i signal to the tv it the first place. By all means try it out though. I'd be interested in you findings. Maybe one of the team can weigh in too.

Can't the Onkyo 875 upscale to 720p instead of 1080p? If it can upscale to 720p, then the Pioneer would not have to do any more scaling right? Have any of the experts here tried this out? Yes, appreciate a reply from one of the team who has tested this out. Cheers!
 

professorhat

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Because the resolution is 1024x768 (i.e. 768 horizontal lines), even if you set the Onkyo to upscale to 720p, the Pioneer will still have to upscale slightly to fill the 768 lines. This is true of virtually all HD Ready sets though, the main point really is, the Pioneer has a very good upscaling chip in it so there may be no need to use the one in the 875.
 
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I use the 875 to scale sky (hd and sd) and a denon dvd to the pioneer. I spent "far to long" comparing the onkyo upscaling compared to it set to pass through. IMHO it looks better, but I'm keen to hear of anyone else's findings.
 
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Am I correct in thinking that the Onkyo TX-SR875 can only upscale via component video? It doesn't upscale sources being 'fed in' via HMDI, does it?
 

matengawhat

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onkyo upscales all to 1080p including hdmi - if signal is already 1080p it just by passes it. for example i run my 360 into it at 720p via hdmi and let the onkyo upscale to 1080p instead of letting the 360 do it
 
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I think you're getting confused between upconverting (composite to hdmi) and upscaling (576p to 1080p). I have the 606 and am not impressed by the upscaling capability. Is the 875 that much better or would it be a tad diasppointing as well.

Has anyone compared the upscaled 1080p picture from an 875 to a genuine 1080i picture on Sky HD ? Is it wishful thinking that the quality of the two pictures could even be close ?

Thanks
 

FuzzyinLondon

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The upscaler on the 875 is a whole different kettle of fish to the one is the 606. It's one of the best on the market and was one of the main reasons why the 875 previously retailed for a cool grand. The one in the 606 is fairly basic in comparison.
 

Clare Newsome

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stringo:
Am I correct in thinking that the Onkyo TX-SR875 can only upscale via component video? It doesn't upscale sources being 'fed in' via HMDI, does it?

Oh yes it does - it'll handle Sky HD and DVD players that way very nicely. Simply set them to auto/native mode and let the Onkyo's superior scaling do its business.
 
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I was unclear on that, so thanks very much. At the moment, I can't see much difference on the Pioneer PDP-428XD between the Onkyo's upscaling and that of my Marantz DV6001, but perhaps I've got a setting wrong somewhere.

Out of interest, would sport (esp. football) via Sky+ (not HD) be upscaled well by the Onkyo TX-SR875, or would it look much the same as that shown on BBC/ITV when viewed through the internal freeview of the Pioneer PDP-428XD?
 

FuzzyinLondon

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If you want to do a comparison of the Marantz and the Onkyo, set the Marantz to output resolution 576i and then set the Onkyo on upscale everything to 1080p (or/and 720p - might be good to test that too). Then, to compare, set the Marantz to 720p/1080p and set the Onkyo to pass through the signal so it doesn't perform any scaling.
 
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FuzzyinLondon:If you want to do a comparison of the Marantz and the Onkyo, set the Marantz to output resolution 576i and then set the Onkyo on upscale everything to 1080p (or/and 720p - might be good to test that too). Then, to compare, set the Marantz to 720p/1080p and set the Onkyo to pass through the signal so it doesn't perform any scaling.

The strongest point of the onk's upscailing imo is the improvment with sport! my sony bravia used to add comet tails to footballs, no such problem now the reon does the upscailing
 
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I spent a fair bit of time comparing the upscaling of the Onkyo and the Marantz and, to my surprise, the latter produced a slightly crisper image.

The football interests me because I'm wondering if I can live without Sky HD and just put the standard Sky Sports picture through the Onkyo and be happy. Has anyone else done this?
 
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Anonymous

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nope but i would be interested in seeing what people have to say about it as i can only get standard sky sports through cable as not allowed a dish! Damn listed buildings!
 
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Anonymous

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Clare Newsome:stringo:
Am I correct in thinking that the Onkyo TX-SR875 can only upscale via component video? It doesn't upscale sources being 'fed in' via HMDI, does it?

Oh yes it does - it'll handle Sky HD and DVD players that way very nicely. Simply set them to auto/native mode and let the Onkyo's superior scaling do its business.

So if say I have a Pioneer 428XD and an Onkyo 876, I should use the Onkyo 876 to upscale everything to 720p to get the best possible picture rather than just pass through and let the Pioneer 428XD do the upscaling right?

I take it that the Reon-VX chip is really superior to the Faroudja chip then?

Thanks!
 

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