backtothelab wrote:AKAI S900:
-DD diskettes only
-non-upgradeable memory
-40 khz maximum sampling quality
-time-stretch only available if upgraded to OS 4.0
AKAI S950:
-uses HD diskettes
my s900 can read and write both diskettes DD and HD.
I bought it used and I dont think its the original disk drive theres a little gap above the disk drive that i got covered with tape so dust wont get in. Another dope thing about my s900 is that whoever had it before me installed XLR ins and outs on the back with a ground. Do they all have the green ground connector on the back or is it just on mine Im just curious as to why you would need to ground it if you are using XLR connections?
do you have to put tape over the hole on the diskette in order to get the HD ones to work?? because if that's the case, you're converting the disk from HD into DD, so it's really the same thing. that trick should work on all S900s. but since the s900 has to format the disk in the first place, i believe it would format a HD disk as just a 720k blank "image" either way... so there's no way to get additional saving space to my knowledge.
regardless, it sounds like your floppy drive was replaced at some point if it doesn't have the bezel around the disk slot. out of my two S900s, one of them has a dead drive, so i recently did a bunch of research on which models are compatible with the s900 and how to replace it [without dishing out over 20 bucks total since i refuse to support those dudes trying to charge $120 on ebay for a 3.5 floppy drive] and it looks like any old floppy drive with two sets of jumpers on the back of the drive will work. i placed an order for an old floppy drive with jumpers, so if i can get it to work properly, i'll be sure to post detailed instructions for you all.
and to answer your question... i don't see any ground connector [or anything green in color for that matter] on the back of either of my S900s

just for reference, the back of the average S900 looks like this:
http://1.bp.blogspot.com/_rScBRKlTdoE/T ... G_9785.jpg