AVS Special Member
Join Date: Jun 2005
Location: Northern, VA - Washington, DC
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At 40m you should use a HD-Base-T system, not a standard cable. A good HDMI cable generally can hit 50-75 feet (15-25m or so). But, you are talking about twice that distance which means you don't just need an equalizer, you need something better. HD-Base-T can handle that distance with no issue at all.
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