2
P75 mk4 Power Supply Requirements
AC to DC power adaptor 12VDC +/-15% 350mA (min)
Two pin connector centre positive
Outer Diameter 5.5mm
Inner Diameter 2.1mm
Note: Power supply is not included.
Please purchase a suitable supply at your local dealer.
Specifications
The P75 mk4 is a stand-alone phono to line level amplifier. It can operate
with almost any cartridge as follows:
Cartridge type
Input sensitivity
Gain
Loading
Ω
(ohms)
Low output MC
0.2mV (200µV)
60 & 63dB 30, 60, 100, 220, 470*
Suggested minimum 0.15mV (150µV)
Shunt capacitance
660, 760, 860* (pF)
Medium output
1.0mV
56dB
470
Ω
High output MC
2.0mV
40 & 46dB 47k (47,000)
Ω
or Moving Magnet,
or Moving Iron
Shunt capacitance
100, 200, 300* (pF)
* Some other R and C loading values available including:
User/Custom Loading:
User can fit any custom R or C loading value.
Low Output MC Phono Enhancer
Specifications vary according to cartridge make and model. Output level
determined mainly by the cartridge internal DC coil resistance. Three
resistance/gain adjustments available.
PE Mode only works with low output MC cartridges. It may not suit all
brands or models. Results obtained depend on the quality of the cartridge's
magnetic circuit. Unsure? Try it out, it can do no harm.
Warning:
Under no circumstances should a signal generator be used with
the phono enhancer circuit, as excessive current from the generator may
damage the P75.
Always turn off power to the audio system (including power to the P75)
when altering jumpers or settings inside the P75.
