Because there’s just not enough consolidated information on the Alesis SR-16 out there for deep diving…
I wanted an SR-16 for circuit bending. I picked one up, turns out it might be less friendly to mods than earlier versions.
Early model was through-hole:
Then came the early surface-mount version, around 2004:
My version is a later surface-mount version, dated 2009.
Other SR-16 resources:
http://www.synthmania.com/sr-16.htm
https://www.circuitbenders.co.uk/newsarchive/SR16.html
http://www.alien-devices.com/circuit-bent-alesis-sr-16.html