echoplex- inquiring minds want to know...

["David Grego" <tubaczar98@hotmail.com>]

I have two Digital Echoplexes. I was wondering if anyone ever tried using 
chips having memory larger than the 4 meg that is recommended and what 
success they had? Would it work with the new Aurisis software? Though I am 
a 
little late in making upgrades, what is the difference with using parity 
and 
non parity chips? Is there any advantage to either? And lastly, what can I 
expect to get if I use a faster chip (60ns vs 100ns)?