THORENS TEP 302 - Handbuch (Seite 9)

Configuring the TEP 302
9
Configuration for use with MM- and MC-pickup-systems
There are two different kinds of pickup systems on the market, the so
called MM (Moving Magnet) and MC (Moving Coil) systems. Having a
MM system, a magnet attached to the pickup system moves inside a
coil and a voltage proportional to the vibration amplitude is induced.
On the other hand, when you have a MC system the coil is wrapped
around the needle and the magnets are arranged around the coil. As
the coils used in MM systems have to be rather small to save weight,
a higher output voltage is needed. While MM systems usually deploy
a voltage of several mVolts, most MC systems only use 100 µV. Now-
adays you often find mixed types as well, they are called high-output
MC systems and have a voltage of up to 2.5 mV.
Due to the better sampling resolution today most high quality turnta-
bles make use of the MC system. However, there are still some very
sophisticated MM systems available.
The TEP 302 was designed to handle both systems without any loss
in quality. To handle the differences between them (MC: higher ampli-
fication, adjusted by resistors MM: adjusted by capacitors) there are
four adjustment units on the bottom of the appliance (two for each
channel – on the left: left channel, on the right: right channel):
ON 1
2
ON 1
2
1
2
3
4
5
6
ON 1
2
3
4
5
6
ON
6
7