Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Does this projector have an audio out jack? A 3.5mm output jack?
Document: A typical white screen with no additives has a gain of about 1.1. Maximum gain for white is about 1.3. Gray screens are 0.7 to 0.8. Screens with reflective additives like glass beads or silver can have a gain of up to 4.
Any more than that and you would need a projector with higher lumen output. I have a 92" and I think it's perfect.
awesome projector for the price. sits about 17 feet from screen and projects on a 120inch screen. very crisp colors and clarity. had it for 3 months and am totally satisfied
The throw distance from the lens to the screen is around 16'.Before diving into the main review, I've listed some background issues:PROJECTOR SPECIFICATIONS:Three key specifications of any projector are lumen output, ANSI contrast, and absolute black levels. Lumen output dictates how well the projector will handle ambient light and large screen sizes without washing out or becoming uncomfortably dim. ANSI contrast measures dynamic range, or the brightest and darkest tones the projector can display at the same time.
We have only had this for a month now. We got it as a replacement. It has a great picture. A lot brighter than our last projector.
Am very happy with this projector. Throws a gorgeous, bright picture right out of the box. Very quiet compared to others I have owned. A little light leakage at the exhaust vents, but certainly acceptable at this price range.
Also there is a significant light leakage from the vents and around the lens.And the ugly: My projector suffers from lens internal light leakage which creates an halo or a ring of light about 3 ft outside the screen. This can be seen on the wall when the scene turns dark and you are in a dark room. This problem is very distracting since the ring appears and disappears as the scene changes.And a word of advice to everybody: Be sure to check the SELLER RETURN POLICY (including exceptions!)
Blacks become blacker, whites become grayer. The combination of a gray screen and a high-lumen projector can effectively compensate for ambient or reflected light that would otherwise cause a very high black level with a white screen. A low-lumen projector paired with gray will just produce a dim picture.
Mitsubishi Hc4000 Hc4000 - Dlp Projector - Desktop - 1300 Ansi Lumen - 1920 X 1080 - 16:9A great projector or rather has a potential to be one.First the good: very sharp picture, good black levels thanks to DLP dark chip 3.Bright enough for large screen 120" even with lights ON. Audible noise acceptable in low lamp mode. Easy to install thanks to long zoom range and keystone correction.
It does not compare to an led monitor, but for the size of screen you're getting, who really cares imo. I could have bought a 50" led tv for the price of this w/ screen included, and to this day would not have changed my decision. A couple weeks into using the projector the lamp died and going through the warranty process for a replacement was quick and easy.
Answer: No, it does not.  Normally one would not expect that of a projector.  Audio out would come from your source such as a Blu-ray player or computer.  It does NOT have a built in speaker (for a good projected image a speaker would potentially vibrate the image)  This is meant to be a higher quality projector than a business meeting projector and it is - it is great for home theater applications where one has a separate amplifier running the speakers.