Avsl 953.214UK Посібник користувача - Сторінка 5
Переглянути онлайн або завантажити pdf Посібник користувача для Підсилювач Avsl 953.214UK. Avsl 953.214UK 9 сторінок. Rackmount 100v mixer-amplifiers with bluetooth
Друкувати сторінкуSpeaker switching zones (RM240S and RM360S)
The RM240S and RM360S have 4 separate terminals for 100V speakers. Any 100V speakers connected to the
terminals labelled 100V or ZONE 1 / ZONE 2 / ZONE 3 / ZONE 4 (+) and COM (-) will be governed by 4 front
panel speaker switches (12)
(e.g. a speaker connected to ZONE 1 + COM will be enabled if Zone 1 button is depressed on the front panel)
There is also a switch labelled "ALL" on the front panel which enables output to all zones 1 to 4.
Low impedance systems
Alternatively, RM series amplifiers can be used to drive low impedance speakers by connecting the "4 - 16Ω"
terminal (17) to the positive (+) speaker connection and "COM" terminal (16) to the negative (-) speaker
connection.
It is important to ensure that the total combined speaker load is no less than 4Ω and that the combined power
handling of the speakers is equal to or greater than the output power of the amplifier.
(e.g. a pair of 8Ω speakers connected in parallel combine to make a 4Ω load)
Do not use 4 - 16Ω and 100V at the same time.
Emergency mute function
RM series mixer-amplifiers are equipped with a Euroblock connector for a 24V mute function (26).
These contacts can be wired to an emergency panel (such as a fire alarm) which has a 24V trigger output.
When the alarm is activated, the RM mixer-amplifier will mute all channels except for MIC1, which remains
active for emergency announcements.
Operation
When all connections to the amplifier are made, turn all rotary controls down and switch on the power (11)
and a power "ON" LED will illuminate.
Turn BASS and TREBLE controls (7, 8) to the 12 o'clock position (pointing straight up) and turn the MASTER
rotary control (9) up part way for testing.
Ensure a signal is being fed to one of the line inputs 2, 3, 4 or 5 and gradually increase the volume control for
that channel until the output is heard through the speakers.
Turn up the MASTER to the maximum required volume level and reduce the channel volume control if
necessary.
Repeat this process for any other line inputs connected to channels 2, 3, 4 or 5.
Note: If a line input is not connected to an RM series mixer-amplifier, the initial test can be made
using the built-in media player. See the "Media player" section for instructions.
Both the media player output and LINE 5 input are governed by the LN5/USB volume control.
The output of the amplifier is represented on the VU meter LEDs (10) and care should be taken that the red
"0" LED is only lit momentarily during use. Anything longer than a short flash of this LED may be indicating
distortion or clipping of the output signal and the MASTER volume control or channel volume control should be
turned down.
RM Series User Manual