Ecler SAM614 Manual De Instrucciones página 7

A / B Output assign pushbuttons (2-4): One of the main advantages of the SAM614 mixer
is that the input signals can be directed to any of the two outputs or to both simultaneously. This
feature is particularly useful when you need to send music or spoken messages to specific zones.
The A / B pushbuttons and their associated LED indicators (7-8) let you redirect each input to the
desired output.
ATTENTION: Care should be taken when adjusting the mixer's general output level OUT
VOL (12). The "clip" indicators of the connected power amplifier should never stay permanently lit. It
may however sporadically light up to the rhythm of the lowest frequencies of the music.
Output A additionally features a mono switch (10) that sums both left and right channels on
output BUS A.
Changing input sensibility from 0dBV to +6dBV: Although both main outputs are factory
adjusted for a nominal level of 0dBV, it is possible to individually raise the level to +6dBV by means
of internal connections. To modify the nominal output levels please refer to the configuration
diagram.
5.2. "REC" Recording outputs
The SAM614 features two additional recording outputs that use RCA type connectors.
These outputs REC A (24) and REC B (25) carry the same signal as the respective main outputs, but
lack tone control and are not balanced. Consequently, the REC A output will be affected by the
talkover function.
5.3. PHONES Output
In order to obtain the maximum performance, headphones should have a high impedance
(200 to 600Ω). Headphones are connected to the PHONES socket (17) on the front panel, a
normalized 1/4'' stereo jack socket. The sleeve is ground, the ring is the right channel and the tip the
left one. The associated A / B pushbutton (15) will let you choose which output bus should be sent to
the headphones socket.
6. CONSIDERATIONS
6.1. Starting up
You can power up this unit by pressing the power switch (18). Although powering up noise is
minimum, it is advisable to power up all your devices by following this sequence: sound sources, mixing
unit, equalizer and - finally - power amplifiers. Powering down sequence must be identical but in reverse
order. By following this simple rules you will avoid any peaks or transitories produced by these
sequences to reach the following devices of the chain.
6.2. Input sensibility
The SAM614 has a highly efficient input sensibility adjustment system that allows for
precise adaptation to the varying levels delivered by different sound sources. This system uses a set
of potentiometers only accessible with an appropriate screwdriver offering an adjustment range of
±20dB in respect to the nominal input sensibility. This wide range is more than enough to adapt to
any existent sound source.
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