akai s20 memory expansion question

[michael sintros <mbsintros@yahoo.com>]

just got one of these great little samplers and am
looking to upgrade its meager memory.  i havn't opened
the thing up yet, because i don't want to mess with it
unnecessarily.  i have looked around online to see
exactly what i need, and i am a little confused by
some things i've found.  

do i need a single 16mb simm, or a pair of 8mb simms
for the maximum expansion?  also one thing i read said
that it is either expandable to 5mb or 17mb.  does
this mean that it will only take a 4mb or a 16mb simm?
 what if i can only find an 8mb simm to expand it to
9mb?  i have no experience with simms so any help
would be appreciated.  

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