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It is probably overstating that I am in love but this is onesweet projector. I pulled it out of thebox, read the quick start guide and in a matter of minutes had my laptop screenup to big screen size! Not only thatbut within that initial 15 minutes I had YouTube videos running on my wall, ina very well light (sunlight bright) room. Within the first 30 minutes I was running Ice Age and feeling prettydarn chipper about the ease of use of this very portable projector. I’m retired so I don’t need this for business. I will use it for presentations now andagain but I am more excited about using it as a big screen TV on the occasionalshore trip where there are just little tube type TVs. I’m also looking forward to running anoutside film fest for the grandkids on the side of the house. The sound is adequate on the projector but you probably willwant to put something beefier on the source to give you better sound. The on screen menu and source selection wasself evident an...

I first hear a Yamaha Sound Projector in the Diamond Case Design showroom. I was watching a big screen and marveling at the surround sound. I looked high and low for the speakers and couldn’t find them. I asked and was told ALL the sound was coming from the sound projector. I expressed disbelief but was assured that it was true. I have wired surround sound but it is probably 15 years old. This wireless surround sound beats the bejabbers out of my wired speakers. The diagram shows how the sound projector “beams” the sounds to the appropriate place. I guarantee you will think there are speakers in those locations. It is truly amazing. A complete review of Yamaha's new YSP-4100 and YSP-5100 Digital Sound Projectors can be found at the Diamond Case Design website . The guys at Diamond Case really know their stuff. This was NOT a paid blog.