I know that the NEC2a and NEC3D are not on your list of monitors you have available, but the link provided that shows the specifications of each NEC monitor is not accurate for those two monitors, and perhaps for others as well. Both the 2a and 3d NEC monitors CAN display all Amiga resolutions up to 800x600 as they have a 15kHz to 31kHz, or above display capability. I own both monitors and have used them in the past and present on all my Amigas. I think they are actually a sort of dual sync monitor instead of a true multisync, but they are great for single monitor solutions for Amigas with graphic cards that pass through native 15kHz screens, but do not have a scan doubler, as the monitor will just switch automatically and show those screens and switch right back to your 31kHz and above graphic card screen. Only drawback is that their screen size is too small for todays expectations.
So, the purpose of my long messeage is, the specs for other NEC monitors on that link may also be incorrect by not showing that the monitor will sync down to 15kHz. Look for another location with more precise specs before you give up on a particular monitor in your list.
Hope this helped.
