Hi Karlos,
Below are some of the specs for this board:
15-75 kHz horizontal frequency
up to 200 Hz vertical frequency
Karlos, do not take this the wrong way, but you do not know what you are talking about when it comes to this video card.
Since most normal people have their Amiga 2000 and 3000 computer screen resolution set at 640 X 480 or 800 X 600, this board works really well and does what it is suppose to do. I have mine set at 640 X 480, 16.7 million colors and it works great. I have never had any problems with it. The only thing is that you have to have 2 megs of Chip Ram, a fast processor, and at least 8 megs of 32-bit memory to use this board in true-color mode. If you have this board set to 8-bit or 16-bit mode then it will work just fine in a stock Amiga 2500 computer. Also, the GVP EGS Spectrum board works very well with Commodore's A2320 Amber board and even comes with a cable for that board. The A2320 is one of the best flicker-fixer / scan-doubler boards ever made. Karlos, I agree with you when you say that there are better video boards for the Amiga, but they cost a lot more money too. The GVP EGS Spectrum video board is a great choice for the average Amiga user. Maybe you are above average and have an above average wallet. :-D
Get a *real* graphics card with at the very least 4MB memory
According to AmigaWorld magazine, it is better to have a 2-meg video board then a 4-meg video board. When I find the article, I will post it. :-D