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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 Moving Coil 0.2mV (200µV) 60 & 63dB 30, 60, 100, 220, 470*
Suggested minimum 0.15mV (150µV)
Shunt Capacitance (pF) 660, 760, 860*
Medium Output MC/MM 1.0mV 56dB 470 Ω
High Output Moving Coil 2.0mV 40 & 46dB 47k (47,000) Ω
or Moving Magnet,
or Moving Iron
Shunt Capacitance (pF) 100, 200, 300*
* 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
Specs vary according to cartridge make and model. Output level determined mainly by
the cartridge internal DC coil resistance. Three resistance/ gai n adjustment s 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 p ower to the P75) when altering
jumpers or settings inside the P75.
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