gmark 0 Posted May 22, 2013 What are the differences between the 2550, 2600, 3000 and 4000 series of DVRs? I know the output of the 3000 and 4000 is HD, and the interface is slicker than the 2550/2600. But are there any other differences? I don't see any between the 2550 and 2600. And the 3000 and 4000 just seem to have different button front-panel layouts from each other. Share this post Link to post Share on other sites
