APART PM1122, Instruction Manual

Page: 12 / 24

12
Pre-amplifier
Optional balanced mic transformers
The PM1122 printed circuit board has all the necessary provisions to
add optional microphone input transformers. This modifi cation can
only be done by a qualifi ed technician.
To access the transformer locations, remove the bottom and lid
from the preamp. On the componentside of the PCB you will fi nd
5 locations called IT1 to IT5. Furthermore, you will have to remove 2
capacitors per added transformer according to the list below.
We recommend the following brand and type of transformer:
Neutrik NTM-1.