Does anyone know what the A/V INPUT jacks are for? We're looking at portable DVD players that have both input and output A/V jacks. Can the input jacks be used to feed in audio and video from another source?
These preamp-level analog inputs can be found on the back panels of some home theater receivers. A 5.1 input features jacks for 6 channels: left front, right front, center channel, left surround, right surround, and subwoofer (sometimes called "LFE" or "Low-Frequency Effects"). Because the LFE channel carries a limited range of frequencies, it's the ".1" in 5.1. A 6.1 input features the same jacks as a 5.1 input, but adds a back surround jack; a 7.1 input adds two back surround jacks. Any of these multichannel inputs allow you to hook up a separate 5.1-channel surround sound (Dolby® Digital, DTS®) decoder, such as those built into some DVD players. You can also use these inputs with newer, cutting-edge 5.1-channel music sources like DVD-Audio and SACD players. The extra jack(s) in 6.1 and 7.1 inputs have no current functionality unless you happen to be using a separate surround preamplifier with 6.1 or 7.1 processing — the main function of these extra jacks on a home theater receiver is to keep you ready for future gear and future surround formats. yes you can plug a dvd player into it, but that would pointless (portable isn't portable any more) this website should have further answers but in short , yes you can add speakers, you can make the portable dvd player project on a large tv, (it will probably have directions on how to do that)so when your not using it for the go it can become stationary, http://www.crutchfieldadvisor.com/