I power all my portable equipment via Hirose 4 pin connectors like the one found in the Sound Devices recorders. Only the V3
was powered by a simple connector that could cause connection problems and wasn't compatible to the rest of my stuff. So I had a technician modified my V3 with a Hirose 4 pin.
Michael Grace was of tremendous help beforehand. I cannot say enough positive about this company (Grace Design). Fantastic sound, great handling
and first class support. Thank you. (no affiliation, just a very satisfied Grace Design owner)
The back of the V3 looks now like that: