Now that i've had my Darblet for almost one month i figure i would post my own observations.
The improvement afforded by the Darblet connected to my Runco LED projector + small high-gain screen is substantial and certainly noticeable, i am not sure about calling it "amazing", "incredible", "eye opening", etc, it's more like a veil is lifted off all small details shown onscreen, especially close-ups of human faces, intricate details such as fabric in clothes, tapestries, small ornaments, painted glass/chinaware, long cityscape shots, indoor/outdoor foliage & flowers, etc, in sum, any image displayed onscreen that happens to have a lot of small detail benefits tremendously from the Darblet processing; Sometimes when i am watching a movie and there is a close-up of human face onscreen the amount of detail enhancement is almost too revealing, what with all the skin pores, facial lines, unwanted hair growth, skin blotches, sun damage, zits, etc, plus the make-up needed to cover all that up is clearly shown to an unforgiving degree.
I also made sure to test the Darblet with my copy of the Spears & Munsil test blu-ray disc and as expected there was no difference in color with the unit in chain or bypassed, and to my surprise, when i used the HD test pattern that shows individual horizontal pixel lines (1920) and vertical lines (1080) across a small part of the screen, which my Runco pj displays sharp as tack, the Darblet did not change the lines at all in any way even at maximum 120% level, even though those test patterns are in black and white as well as extremely small detailed; I thought for sure the Darblet would introduce some kind of unwanted artifact enhancement to such intricate black/white pattern, but i was wrong.
The same happened to sharpness patterns and i also noticed that if the source has noticeable video noise present enabling the Darblet up to 80% enhancement increases video noise hardly at all, even sitting 5 feet away from the screen; Contrary to the majority of owners in this thread, i use my Darblet between 80% to 85% enhancement level even with recent blockbuster blu-ray titles, as i find it affords a noticeable increase in detail without any serious side effects such as increased video noise and/or content image over-enhancement.
So, yes it is worth $280 for sure in these days of $800 smartphones, i just wish Darbee Vision would have taken a little extra time and debuted the Darblet with a USB port and two HDMI outputs inside a metal case, even if it cost $30 to $50 more...
BTW, my Darblet would not display HDMI signal from my cable box but i have the same problem with my Onkyo Integra DHC-80.2 processor, so i know the problem is not related to the Darblet but instead to HDMI connection handshake issues; I do get a HDMI signal from my cable box if i connect it directly to the HDMI input on the external controller/processor box of my Runco pj AND bypass the Onkyo processor and the Darblet.
What i ended up doing to solve such conundrum was to connect my HD cable box to the Onkyo processor with component cable (1080 interlaced analog signal) instead of HDMI cable; I figured the native signal of all HD cable boxes is 1080i anyway, so why not let the Onkyo processor simply do the digital conversion to HDMI without any degradation to the native content, pass the signal along to the Runco's external processor box, then to the Darblet and finally to the projector ? Problem solved....
Edited by MCaugusto - 9/27/12 at 12:26am