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I believe a couple of other minor differences will be that the 4000 will have the HDMI and USB ports facing sideways and the remote will have back-lit keys (white translucent keys) with an on/off button for the back-light at the top right of the remote (glowing pink button). The 4003 will have the above mentioned ports facing toward the back and its remote is not lighted (will have black keys instead of translucent white with no glowing pink on/off button). Image shown is the remote for the 4000 and NOT the 4003 sold here. The remote for the 4003 is exactly the same but with black keys with white characters and no illumination.
Sorry, there was a problem. Please try again later.From the available information, the main differences between the EH4000 and the EH4003 are: 1. Speakers- The EH4000 will offer a 10Wx2 speaker setup, while the EH4003 will offer a 5Wx2 speaker setup 2. Sound Processor- The EH4000 offers the SRS TheaterSound HD™ High Definition audio experience, while the EH4003 offers the SRS TheaterSound™ system -MrSamsung
Sorry, there was a problem. Please try again later.the 4003 model has a 10 watt sound output and the 4000 has a 20 watt output
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