T+A POWER PLANT MK I, User Manual

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38
Glossary
AUX     Universal pre-amplifier input ( AUX = auxiliary input) for connecting high-level
signal sources (i.e. signal sources with an output level between 0.25 V and
3,5 V).
Balance     The balance control provides infinite adjustment of level between right and left
channels (shift of stereo centre), e. g. to compensate for asymmetric speaker
positioning.
To avoid any adverse effect on the sound, the balance range is limited to
+6 dB / -8 dB. It is never desirable to reduce the volume of one stereo channel
to zero.
dB

 
 The unit of measurement for electrical levels is the deci Bel (dB).
E
LINK

 

Control interface for remote control of

systems. The CD player / Music
Player receives the infra-red remote control signals and passes then on to the
power amplifier and to the source devices.
FLAT     In FLAT mode the signals pass along the shortest possible signal paths within
the unit. All sub-assemblies which are not absolutely essential (e. g. the tone
controls) are by-passed by means of high-quality gold-contact relays in this
mode. The frequency response and phase response of the unit are absolutely
linear in this mode of operation. This means that the
FLAT setting provides the
most faithful reproduction and the highest possible quality, and it should always
be selected if the tone controls are in the centre position in any case.
Loudness 
 
 A volume-dependent tone control ( Loudness ) circuit which compensates for
the frequency-dependent sensitivity of the human ear at very low volume levels.
At very high volumes the loudness circuit has absolutely no effect, but as
volume is reduced the bass and upper treble are lifted, in order to compensate
for the reduction in sensitivity of the human auditory system at low levels.
MC     Some analogue turntables are fitted with dynamic sound pick-up systems ( MC =
M oving C oil). The amplifier can be fitted with an optional high-quality MC phono
pre-amplifier module whose input impedance and input sensitivity can be
adjusted to match all currently available dynamic pick-up systems.
MM

 
 Some analogue turntables are fitted with magnetic sound pick-up systems ( MM
= M oving M agnet). The amplifier can be fitted with an optional high-quality MM
phono pre-amplifier module whose input impedance and input sensitivity can be
adjusted to match all currently available magnetic pick-up systems.
Source device     The term source device refers to those elements of a Hi-Fi system which
provide a sound signal, such as tuners, CD players, recorders etc. (signal
sources). We have to differentiate between listening sources and recording
sources.
-
A listening source is the device to which you are currently listening. This
device can be remote-controlled.
-
A recording source is a source from which a recording can be made using a
recorder (TAPE). A recording source cannot be remote-controlled.