What are the U46 series power supply specifications?
Our U46 series
interfaces (U46DJ, U46
SE and U46 XL) can
be used with an optional external power supply. This might be needed in case
the USB bus power from the host computer is not powerful enough to provide the
+48V phantom power of the built-in microphone preamp. For that, the U46 device
can be used with an optional standard power supply which is not available from
The power supply needs to be regulated and provide 9V DC with at least
500mA. The outside (sleeve) of the connector is -, while the
inside (tip) is +. The connector diameter is 5.5mm (= 2.2in).
Such a power supply is a standard part that can be purchased via most music
or electronic retailers and mail order companies. If you are unsure, print out
this page and show it at your local shop.