quality will be degraded slightly. may have noise/interfiernce in the signal and if your video source (dvd player/ps2/xbox) has low power video output it will be affected more than a source with a higher voltage output. id just recomend getting the amplifier you can usually pull off 2 displays without one but for 3 id recomend it you can find them on ebay cheap (30-60 dollars) better to put it in while you got everything apart then do it and realize you need the amplifier.

-good luck

-krazymatt