How many Dan Armstrong basses were produced?
The methodology for estimating Ampeg Dan Armstrong bass production is the same as for the guitars (please see the guitar production FAQ page for more detail). Bass production likely started at serial number D101A, and seems to have ended with basses in the low 2600's. And in the middle, we have found no serial numbers between 1600 and 2000. So taking this information into account, our current estimate is that Ampeg produced approximately 2,125 basses between 1969 and 1971.
Dan Armstrong Bass Production 1969 - 1971