I just scored a pair of Altec Boleros. They are the 890A model, with the 3000-series horn and the 10" 406A driver. The drivers are in great shape; the cabinets are okay; and one grill cloth is ripped. Interestingly, the big difference between the 406A drivers and the later 406Z's that are in my Maderas appears to be the basket. In the 406Z's the basket is heavy, cast aluminum while in the 406A the basket is much thinner, stamped aluminum.