[Sorry to continue the off-topic conversation, but...]
DPA 4060s need 5V. Lots of threads about this, but, in brief, since DPA discontinued the MMA6000 and the MPS boxes, the easiest way to power them is to get a microdot to 1/8" Y-cable. Then use any mini input battery box or pre. There are even a few recorders that will supply the requisite 5V; I haven't tried this myself, but there are multiple reports of doing this successfully...