6
PHONO INPUT
The phonostage of your Sigsum can be configured for cartridges of various types in terms of Sensitivity, Impedance, and
Capacitance. In the first instance, please refer to your cartridge documentation to ascertain the initial settings for your
cartridge. The phono settings are accessible from beneath the unit—take care when turning the unit over, and ensure it is
resting on a soft, clean cloth to ensure none of the finishes are damaged during the procedure.
The phonostage provides an earthing post that should be connected to the turntable earth cable—failure to do so will result
in high levels of hum.
In the absence of full cartridge documentation, please follow these guidelines
Initial setup
The settings are configured using the switches accessible through the apertures
on the bottom, towards the rear of the case. Using a pen tip, you can slide each
arrow to either the ON of OFF position.
Moving Magnet
A standard Moving Magnet cartridge is the easiest to configure—simply ensure all
the switches are set to OFF—this is a starting
Sensitivity
There are three sensitivity levels available increasing from MM, MC LOW and MC
HIGH.
Check what type of cartridge you have. If you are uncertain, set the dial to MM.
If you have an MC cartridge, then set the dial to MC (mid).
Play a piece of music with which you are familiar. Adjust the volume control to a
comfortable listening level, if the volume control is much beyond the half way
point, you should probably consider increasing the sensitivity level, if the volume is
immediately very loud, then choose a lower sensitivity.
Some very high output MC cartridges work well using the MM setting—no harm
will be done by experimenting with settings.