I know this is an old preamp that is discontinued, but it sounds real nice...
and this is a good solution.
I needed to add external 9V power to my
DXA-10 as the internal 9V battery lasts like an hour...? (w/ phantom power ON)
Someone posted a battery insert they got from Beachtek to add an external jack.
Another person drilled a hole and added a jack.
I thought about it and went another route.
There's already a notch in the back of the pre.
Usually the mic output cable is there (in other models using the same body).
I removed the back and the 9V sled compartment.
Soldered a female DC connector pigtail to the same spot as the 9v out from the battery
(inside, on the back of the plastic battery sled housing)
Added a mini ty-wrap for strain relief, and dressed the wire around the back connector plate and thru the notch.
Done. Now I can hot swap external batteries w/ a good 9V in the sled.
Also, I can now run the pre non-stop.
labeled !