Clearaudio concept active - Mode Selection (MM;MC); RCA Output Modes; Grounding Connection

User manual / Bedienungsanleitung
10 © clearaudio electronic GmbH, 2019-02
3) MODE
Choose between MM/MC mode
MM = Input impedance of the integrated phonostage 47 kOhm
MC = Input impedance of the integrated phonostage 500 Ohm
4) RCA OUTPUT
Due to an additional board, the signal is always active on the headphone output and can be controlled
by the volume control on the turntable, regardless of the chosen setting.
passive
= The integrated phonostage is deactivated, so you can connect the
turntable as usual to your external hi- system.
variable
= The integrated phonostage is activated and the volume of the
signal on the RCA outputs can be adjusted using the volume control
on the concept active .
active
= The integrated phonostage is activated, the signal output through
the RCA output is at full power.
5) GND (Grounding screw for optional grounding)
In the event of humming noises, we recommend connecting the included grounding wire between
your turntable and your amplier.
Please note:
Phonostages are devices designed to provide a very high level of amplication. This is necessary
because the electrical signal generated by a phono cartridge is extremely low (usually less than
one-thousandth of a volt). The job of the phonostage is therefore to accurately equalize the phono
signal and boost it to line level (measured in volts).
However, phonostages are by nature extremely sensitive, which leads to the potential problem that
high-frequency interference may also be amplied to a point at which it becomes noticeable.
Unfortunately it is not possible to completely protect the sensitive phonostage circuitry from this
interference without degrading its high delity performance. Therefore care must be taken to position
the phonostage away from sources of high frequency interference such as mobile phones, modems
and powerline communication systems (PLC) in which data is sent over the mains power network.