We have been looking for a graphic switcher that could support our increasing HD work for some time now, but they are all generally either good, but very expensive (e.g. Spyder) or merely quite expensive, but not very good (e.g. names hidden to protect the guilty!). We carried on looking and recently evaluated Barco's ScreenPro II and it quickly became clear that this was the elusive affordable product that was also really good.
The feature set is excellent since it is a layer-based system working in a virtual pixel-space like Spyder and it has also the advantage of real buttons and displays for hands-on show use. The upscaling and downscaling is streets ahead of the other products in this price bracket, so HD and non-HD formats can be freely mixed to give stunning projected quality with both conventional and HD projectors.
We have the optional scaler output card fitted. This gives a complete extra scaling engine and output so it is easy to derive auxiliary outputs with different resolutions and formats from the system without the use of (expensive) external scalers.
We also bought the full control surface so up to 4 ScreenPro-IIs can be used together for seamless widescreen projection.