Reliability is often overlooked when comparing different a\v receivers. There is more to consider than just pure specifications. I haven't documented this myself but,if you are from the " where there's smoke there is fire " school of thought,the Onkyo / Integra (made by Onkyo) receivers have relatively poor reliability compared to the competition. Another problem they have,or at least they used to, (possibly related) is that they run hot compared to receivers from other manufacturers.
The Onkyo / Integra receivers are pretty tempting this year because of impressive specification - even more than usual. They seem as though they would be more "future proof" than competing receivers IF THEY LAST through the years. A big feature on this year's Onkyo / Integra surround sound receivers is 4 K upscaling for future 4 K displays and forthcoming 4 K projectors.
If anyone is going to roll the dice on an Onkyo or Integra receiver,I most definitely would not go with last year's Integra DTR-50.2 when you could have this year's Integra DTR-50.3 for the same price which adds the 4 K upscaling and undoubtedly better 1080p upscaling. As far as Onkyo goes,the TX-NR809 is a better proposition than the TX-NR709 or TX-NR609. The TX-NR809 can be had new for $ 779 flat or for $ 708 refurbished and it adds the new HQV Vida chip in addition to the Marvell Qdeo Kyoto G2H chip. Anything below the TX-NR809 this year does not include the HQV Vida chip!
The ONLY reason that I can think of to go with an Integra DTR-50.2 over a DTR-50.3 is the fact that any receiver manufactured before December 31st,2010 is allowed to have & should have High Definition component video outputs. Due to the " Analog Sunset " rule or law,equipment manufactured on January 1st,2011 or later MUST limit the component video output to 480i or maybe 480p at the highest.
The differences between the Integra and Onkyo receivers are :
1) The Integra receivers come with a 3 year warranty compared to a two year warranty with an Onkyo receiver.
2) Integra receivers are designed towards the custom installation market more so than the Onkyo's are & the Integra's are usually only available @ specialty,up-scale or semi-upscale home theater dealers. However,the Onkyo TX-NR809 does seem to have every connection and feature that the Integra DTR-50.3 has (including an RS-232 port and ISFcc custom calibration capability) except for being short one component input as well as one component output.
3) The Onkyo receivers are more widely available & available well below the M.S.R.P..
4) In my opinion,the Integra receivers look better cosmetically. Also,they are more exclusive - if that matters to you.
To make a long story short,for an Onkyo receiver,I would recommend the TX-NR809 or above. For an Integra receiver,I would recommend the DTR-50.3 or above. You have to go above these models for 9 channel surround sound & for better D.A.C.'s. Only if you need or want your component video outputs to send out a high definition signal at the cost of not having 4 K upscaling,then look at a 2010 or 2009 model. Almost always,the HDMI connection is the best bet (and obviously it reduces clutter) but,what if your HDMI output section fails after the warranty expires ?? As a side note,there is a firmware update available for the DTR-50.3 and one is also available for the TX-NR809 .
Later on,I will recommend some alternatives by other AVR makers which have a better track record for reliability.