I have 4 HD cable boxes i want to relocate to a central location, and control via IR, but the problem is that, they all have the same IR codes, can the Xantech 795-20 amplify connection block solve this issue? Any help please!
The 795-20 should work since it is zoned. You will need four ir receivers, one for each zone (HD box). As long as the ir receivers are in different locations, you should be fine. This link gives example configuration.