Ecler SAM614T - Manual (Page 7)

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5.2. "REC" Recording outputs
The SAM614T 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
600
Ω). Headphones are connected to the PHONES socket (18) 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 (16) will let you choose which output bus should be sent to the headphones
socket.
5.4. "MUTE" remote control
The
SAM614T Incorporates a REMOTE MUTE (30) feature that mutes all inputs of the unit when a
remote contact is closed (factory adjustment) or open (internally selectable by jumper). See configuration
diagram. Remote MUTE feature has been designed for the connection with fire detection systems or any
other security system. It affects all inputs channels. Internally configurable NO / NC (Normally open /
Normally closed). This remote control can be deactivated for output "B" with an internal jumper.
6. CONSIDERATIONS
6.1. Starting up
You can power up this unit by pressing the power switch (19). 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 SAM614T 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.
For adjusting one channel's input sensibility we recommend you to consider following guideline:
Position the volume potentiometer to position 10 while all other channels are at 0. Start the sound source
at its maximum level and adjust so that the 0dB LED of the output level indicator (OUT A / B section)
sporadically flashes. The +6dB LED should never light up.
Repeat this process with all channels where sound sources will be connected. Make sure that
when all channels are mixed together, the +6dB LED is not permanently lit, but instead sporadically
flashes. Should the former happen, repeat the entire operation attenuating more each channel.