LDM Trumpet - 70 User manual

Trumpet - 70/ Trumpet - Box
Portable active system
Manufacturer: LDM Electronic Sp. z o. o.
Olszewska 35, 09-300 ¯uromin, Poland
tel. [phone]
www.ldm.com.pl, e-mail: [email protected]
ManualManual
SPECIFICATIONS
Wireless operating distance (the wireless
receiver is an optional equipment):
WR-25D - approx. 30 - 50m
KRU-162 - approx. 30 - 100m
Trumpet-70:
SPL(1w,1m) .................................106dB
Frequency range.......... 300Hz - 12,5kHz
RMS power......................................70W
Impedance...................................4 Ohm
Trumpet-Box:
SPL(1w,1m)...................................97dB
Frequency range....... .......80Hz - 20kHz
RMS power.....................................90W
Impedance..................................2 Ohm
Power supply:
- wireless receiver and ampliefier: by
integrated battery
- battery charger: 230V~/50Hz
Type of battery:
- recharchable 12V/7Ah
Max. operating time: ( on 1 battery):
- Trumpet-70: approx. 10h.
- Trumpet-Box: approx. 8,5 h.
Dimensions: 1200x215x250 mm
Weight: 7
GENERAL INFORMATION
The amplifier system Trumpet-70/MobileVoice
is powered by a rechargeable battery and can be
carried as a rucksack during processions, for
example. The amplifier is equipped with mixable
inputs for a micro-phone, a (stereo) audio source
with line level and an (optional) receiver for a
wireless microphone.
It is possible to automatically mute the music,
for example, while speaking into the microphone.
With a fully charged battery, the amplifier system
can be operated for up to 10 hours..
For doubling the operating time, a second
rechargeable battery is separately available. This
battery can be stored in additional compartment
of the box. Additional compartments for items
such as microphones and connection cables are
provided in the rucksack.
To provide sound to larger areas, the wireless
signal of the microphones can be simultaneously
received by multiple Trumpet-70/MobileVoice.
NOTES

10,16 Tone - common sound control TONE for a
micro-phone or audio unit connected to (2) and
for (3)
11 VOICE OVER MUSIC - function of muting
the music from the device connected to (3) while
speaking into a microphone (wireless or
connected to (2))
LED MUSIC will light up when the music is
muted
Control DEPTH to adjust the sensitivity for
muting the music
12 POWER - POWER switch
13 Indicators:
- LIMITER -
- AMP ON - power indicator for POWER
ON
14 BATTERY - LED status indicators for the
rechargeable battery:
- FULL - charging state: full
- OK -
- LOW - the charge level of the
rechargeable battery is less than 25 % - the
battery should
15 CHARGE - will light up during the charge
process
- red - the recharchable battery is during
the charge process
- green - the charge process is finished
will light up when the volume
level limiter is active. It prevents the sound from
distortion
undergo the charge process
the rechargeable battery is
charged more than 75%
OPERATION
1) Prior to initial switch-on, set all volume con-
trols (1, 2, 3) to “0” to avoid an unexpectedly high
volume when the amplifier is switched on..
2) Switch on the the wireless transmitter and
audio sources if any was connected.
3) Use the POWER switch (12) to switch on the
amplifier. The LED power indicator AMP ON (13)
will light up. In addition, the appropriate LED (14)
will indicate the current charging state of the
rechargeable battery. When the LED LOW lights
up, the battery must be recharged.
4) Adjust the volume of the audio sources with
the corresponding control (1, 2, 3).
WARNING Never operate the amplifier when
the speakers are close to anybody’s ears! The
high volume may cause hearing damage. To
avoid acoustic feedback (loud howling), never
position the speaker towards the microphone
and always make sure that there is a sufficient
distance between the speaker and the
microphone..
A level limiter will automatically prevent dis-
tortions at high volumes. The LED LIMITER
(13)will light up when the limiter is active.
5) Use the control TONE (16) to adjust the
desired sound for the microphones or for an
audio source connected to the jack (2); use the
con-trol TONE (10) to adjust the sound for an
audio source connected to the jacks LINE IN.
6) To automatically mute music, for example, of
an audio source connected to the jacks LINE IN
(3) during announcements via the micro-phone
[VOICE OVER (11)], adjust the control DEPTH in
such a way that the LED MUSIC will light up
while speaking into the microphone.
7) To avoid unnecessary discharging of the
battery, switch off the amplifier with the switch
POWER (12) after operation or during longer
pauses.
If the amplifier system is not used for a
longer period of time, completely charge the
battery prior to storage and recharge it
approx. every six months to make up for
normal self-discharge.
RECHARGING THE BATTERY
To recharge the built-in battery and an addi-
tionally connected battery, connect the power
supply unit provided to the low-voltage jack (9)
and to a mains socket (230V~/50Hz). The LED
CHARGE (15) and the LED corresponding to the
current charging state – FULL, OK or LOW – will
light up and the battery will be recharged. The
amplifier may be switched off during recharging..
When the battery has been recharged, dis-
connect the power supply unit from the ampli-
fier and the mains.
Never put defective
rechargeable batteries in the
household waste. To protect
the environment, always take
them to a special waste
disposal, e.g. collection container at your
retailer.
SAFETY NOTES
The units (amplifier system and power supply
unit) correspond to all relevant directives of the
EU and are therefore marked with
WARNING
The power supply unit uses dangerous
mains voltage. Leave servicing to
skilled personnel. Inexpert handling
may result in electric shock.
Protect the unit from high or low tempera-tures
(admissible ambient temperature range 0–40°C).
Never use the unit in heavy rain, and always
make sure that no moisture will get into the unit.
In order to protect the speakers from the rain use
the protective cover included in the set
(MobileVoice).
For cleaning only use a soft cloth, dry or slight-ly
wet; never use chemicals or aggressive de-
tergents.
Never pull the mains cable to disconnect the
mains plug from the mains socket, always seize
the plug.
No guarantee claims for the units and no liability
for any resulting personal damage or material
damage will be accepted if the units are used for
other purposes than originally intended, if they
are not correctly connected or operated, or if
they are not repaired in an expert way.
If the units are to be put out of operation
definitively, take them to a local recycling plant
for a disposal which is not harmful to the
environment.
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14
12
13
15
4
16
1
2
11
10
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PANEL
1 VOLUME - volume control LEVEL for
wireless microphones
2 MIC/LINE INPUT - combined XLR/6.3
mm jack 1MIC/LINE IN to connect a
microphone or an audio source with line level.
3 INPUT 4 - RCA jacks LINE IN to connect
an audio source with line level; when a stereo
audio source is connected, a mono signal will
be mixed in the amplifier
4 LINE OUTPUT - RCA outputs MIX OUT
to record the mixed signal or to route it to
another amplifier system; for stereo recorders,
two jacks are available
5 EXT. SPEAKER - socket designed for
connecting an additional passive speaker
4Ù- min. 60W;
8Ù- min. 40W;
6 SPEAKER SWITCH - switcher giving an
ability of turning off the internal speaker with
the result that only the one connected to (5) will
be audible
7,8 VOLUME - volume control LEVEL for
channels 3 and 1 respectively.
9 Connection jack for the power supply
unit and for charging the battery
9