The SD-4 offers an external way of powering the Sound Devices mix-pre-units 3 and 6
This will offer an NPF fitting to our SD-1 product which allows you to mount directly to the rear of the mix-pre-unit.
A cable of 30 cm will be offered so you are able to position the NPF adaptor away from the unit, should you need to.
Type: Sound Devices
Manufacturer Part Number : SD-4