This is the last pinball machine produced by Mylstar before they were purchased by Premier Technology. Price when new: $1495.00 F.O.B. Mylstar factory. ROM version 691A lowers the maximum credits from 25 to 20. DIP switch 31, which is noted in the manual for turning on/off background sounds, actually has no effect in ROM version 691 or 691A. So, background sounds are always on.