JVC RS4500 | ST130 G4 135" | MRX 720 | MC303 MC152 | B&W 802D3, HTM1D3, 805D3, 702S2 | 4x15 IB Subs
As long as you can get all the lights off in the room, you'll gain a massive benefit over the Epson. The white walls, painted ceiling etc will help ANSI contrast. But the JVC's blacks come in the on/off contrast. As long as you kill the lights completely you'll see the awesome blacks of the JVCwould i benefit enough going to a jvc rs640 if my room is not 100% blacked out like a cave or would it negate the advantages of these over a different brand like epson 5040 or brighter sony models . i use my current projector with all lights off but there is still some light reflections and tiny bit of light from not having walls/ceiling room painted dark or covered in black velvet. currently using vivitek hk2299 4k projector on 110" screen from 11feet away.