OBERHEIM SYNTH

I have repaired an OBX-a, took me ages but it all works now, only problem is I don't have the factory sounds. The wav file that I found on the net has a drop out and too short leader tone, I tried to fix it wit audio editing software but still throws up and error when loading at the drop out. If anyone has a tape or a copy of the settings chats I'd really appreciate some help. 

As I spent a long time fixing this kybd, I learnt so much, if u have any questions let me know. 

Thanks

Ian