Hi all,
Probably a dumb question, but...I recently got an SP-SPSB-10 box (and sound pros. mics) secondhand from a friend. There was a duracell MN21/23 12V battery in the box, which worked fine. I now need to buy more batteries, and can only find MN23 12V. I was just wondering if this will work ok to power the mics or if I need one which can vary between the two? Secondly, is there a rule of thumb for how long batteries tend to last in-box before they need to be changed?
thanks,
-ben