Hi,
I have a carvin DC (I don´t remember if it is a 400 or a 600) loaded with a JB pickup in the bridge.
The specs of the guitar are: neck through, 25 inch scale, alder neck, poplar sides, ebony fingerboard, Floyd Rose -resting over the body, so only diving-, no locking nut. 1 vol, 1 tone, 2...