Returning To Factory Defaults - CH P10 User Manual

The goal is to achieve the flattest response possible between 1kHz and 20kHz – without losing level.
Do not be confused by the small ripples or undulations in the traces. What you are looking for is the overall
shape of the trace.
An optimally loaded cartridge should show a flat overall trace at a high amplitude and with a gentle roll-off from
around the 20kHz mark.
The left and right flatness numbers are computed as the standard deviation of each channel's frequency response
compared to a perfectly flat one. Therefore, the smaller the number, the flattest the frequency response.
Rload = 440 U
Level = -29dB
1 kHz
Rload = 100 U
Level = -34dB
1 kHz
An under-loaded cartridge will show a distinct hump in its response, normally somewhere between 5kHz and 20kHz.
An over-loaded cartridge will show a depressed level, a general downward trend in its trace or both.

13 Returning to factory defaults

Please note that if you get lost in the menus, or you simply want to start over, your P10 can be reset to Factory
default settings by using the RESET ALL SETTING item of the FACTORY SETTING menu. For a list of Factory
default settings, please refer to the Specifications section.
MM/MC LOADING WIZARD
Left: Flatness = 1745
Right: Flatness = 1745
100 k U
2 kHz 5 kHz
Under-loaded cartridge
MM/MC LOADING WIZARD
Left: Flatness = 1730
Right: Flatness = 1730
100 k U
2 kHz 5 kHz
Over- loaded cartridge
P10 User Manual
10 kHz 20 kHz
10 kHz 20 kHz
32