Manley MASTERINGROOM STANDARD REFERENCE PREAMPLIFIER - Manual (Page 5)

CONNECTING YOUR PREAMPLIFIER
Setting up your preamplifier is rather easy.
1. Please refer to page 7 diagram 2 for an illustration of the back of the preamplifier.
2. There are two sets of main outputs, one set RCA and the other XLR. The pin out for the
XLR is as follows: PIN1 - ground, PIN2 - common/ground (-), PIN3 - hot (+). Connect
either the XLR or RCA output to the input of your amplifier.
3. All other inputs including are standard RCA jack inputs and can be connected to their
corresponding devices via a standard RCA cable.
4. A special 5 pin has been installed for balanced MC opeation. The pin out for the five pin
XLR is as follows: PIN1 - right common(-), PIN2 - right hot(+), PIN3 - ground, PIN4 -
left hot(+), PIN5 - left common(-).
5. The two toggle switches located next to MM input will switch between the MC and MM
inputs.
6. On the left end of the back panel is a standard IEC mains connector. This should be
connected to a standard 120 or 240 volt outlet.
7. Be certain that the voltage selector switch located next to the IEC mains socket is set for
your voltage!!!
8. Power up the preamplifier and allow it to settle for a minimum of 30 seconds before
powering your amplifiers.