TEMA TELECOMUNICAZIONI SRL
Audio Amplifier AD301R
MAS-AD301R-REV01EN
Page 5 of 12
1. PRESENTATION OF THE AD301R AUDIO AMPLIFIER
AD301R
is an audio amplifier designed for the audio paging of messages and music. It is housed
in a standard container suitable for DIN rail mounting and has 2 audio inputs and a speaker output.
AD301R
is ideal to realize small paging sound systems suitable for announcements in public
places, hotel lounges, health centres, gyms, meeting rooms, etc.
Since it can be powered at 12V
DC
AD301R
can be used in applications in mobility, boats or
wherever there is a 112V
DC
voltage source as it can be on a vehicle equipped with a normal lead-
acid battery.
AD301R
is designed to guarantee the highest possible reproduction fidelity and is equipped with a
class D final stage amplifier delivering a maximum power of 30Wrms on 4
Ω
when powered with a
voltage of 16V
DC
.
The output amplifier is self-protected against the short circuit on the load and its realization with the
class D technology makes it possible to install the system even directly inside an electrical panel,
given the limited heat production.
AD301R
can also be used as an additional amplifier to extend the audio range of pre-existing
systems or as an auxiliary amplifier to create a PA Paging System by connecting it to one of the
line outputs of a more performing model.
For example
AD301R
is equipped with a mixer, DSP, ducking and 2 audio cascade outputs for
connecting other amplifiers, usually two more
AD301R
.
2. MAIN FEATURES
The main features of
AD301R
are:
•
Extreme simple to install and use.
•
Self-resetting thermal protection in case of hard conditions use.
•
Self-resetting protection against short-circuit on the load (loudspeaker line).
•
Supply voltage between 8V
DC
and 18V
DC
with possibility of 12V
DC
battery operation (the de-
vice is equipped with self-resetting internal fuse).
•
High quality fidelity sound re production.
•
Master volume controls, volume channels and tones realized through trimmer accessible on
the device.
•
Tone control realized with 2-band equalizer with +/- 12dB excursion that allows to solve
most of the problems related to acoustics.
•
Possibility of stereo input source that will be mixed and played in mono.
•
Possibility of use with
AD320/30
, (optional 100V speaker line transformer) for cases where
speakers/horns are more than 30m away from the amplifier.
•
Possibility of migration to more performing systems such as
AD301
or
AD302
thanks to the
positional compatibility of the connections with screw terminals, no need to re-wire the elec-
trical panel in a different way.
•
Immediately ready for use, no configuration jumper to be set.