General Technical Description; Safety Considerations - Trigon Monolog Owner's Manual

2. General technical description

Monolog
The
This power amplifier is configured as a monobloc, therefore two components are
needed for stereo applications. One of the significant advantages of this concept is
the possibility to install each amplifier physically close to the corresponding
loudspeaker and therefore minimize the length of the speaker cable. The use of short
speaker cables along with longer line-level signal cables minimize loss of detail and
maximizes control of the speakers by the amplifiers. This concept further enhances
channel separation and therefore optimizes the rendering of the spatial qualities of
sound reproduction. This principal also ensures that each amplifier has its own
independent power supply which excludes any interference between channels
through a shared power supply. Each monobloc amplifier has two 500 VA power
transformers and over 80000µF storage capacity to ensure that sufficient energy is
available to supply the output stages with ample current and stable voltages
throughout the amplifiers entire design envelope.
The output stage is realized in bridged topology, which means that there are two
completely independent amplifiers are contained within one monobloc amplifier
housing. These amplifiers are configured in fully differential mode, with one amplifier
driving one phase of the signal while the other is driving the opposite phase. The load
is connected between the two amplifiers and acts as a "bridge" to complete the
circuit. The advantage of this configuration lies in the fact that each pole of the
loudspeaker is actively controlled by the electronic circuitry. This allows a much
tighter control of the individual drivers to achieve a more linear impulse response and
better contouring of the sound.
The amplifiers rear panel has two inputs, balanced and single-ended, switch able via
an input selector "BAL/UNBAL". The amplifier can be remotely turned on or off via a
trigger input (RJ-45 connector, ca. 4-10V DC). This function is enabled via the
"AUTO" switch also located on the rear panel.
A digital voltmeter on the front panel indicates the current mains input voltage. This
function can also be switched off by a rear panel disabled switch.
A large VU-meter on the front panel displays the current output power. This meter is
LED-based and very quick. This display can also be changed and/or disabled by a
dedicated switch on the rear panel.

2.1 Safety considerations

Trigon Elektronik GmbH
improper handling or by lack of observing the following safety instructions and
warnings.
Monolog
The
heaters, radiators, light fixtures, fireplaces, stoves or open fire.
is a high-performance audio component for domestic indoor use.
amplifier must not be installed close to heat sources such as
will not be liable for any damage caused by