Channel Gain; Channel Equalization; Long-Life Crossfader With Vca; Changing The Crossfader - Ecler SMAC PRO20 Notice D'emploi

4.3. Channel gain

All the SMAC input channels have accessible input sensitivity GAIN (2) controls. These
controls have the function of compensating for differences of level existing between the sound
sources connected to the table.
The gain controls have a variation margin of ±15dB (channels 1-2) and ±20dB (channel 3).
All GAIN adjustments must he done very carefully using the VU-METER as a reference and avoiding
that all the red LEDS of the VU-METER light up, input could be cliped.

4.4. Channel equalization

Inputs 1 and 2 are provided with a 3-way tone control (6-7-8) of wide range of operation,
-30 to +10dB for bass and treble and –25 to +10dB for medium. This wide range enables a
progressive KILL effect instead of the sharpness of the ISOLATOR switch (11).
Channel 3 is provided with a conventional two-way tone control with a ±15 dB range.

4.5. Long-life Crossfader with VCA.

The addition of the Voltage Controlled Amplification (VCA) control to the fineness,
precision and mechanical strength of the crossfader has resulted in an operating life greater than
300,000 operations. That means that the SMAC PRO20 crossfader operating life is 30 times greater
than a high-quality mechanical crossfader.

4.6. Changing the crossfader.

Once the operating life of the crossfader has ended, it can be changed very easily.
Replace the old crossfader by a new one and the system will operate as the PRO20 day. To change
the potentiometer proceed as follows:
1.-Remove the screws from the cover.
2.-Disconnect the multipin connector.
3.-Remove the crossfader screws.
4.-Replace the crossfader by a new one.
5.-Fix the crossfader screws.
6.-Connect the multipin connector.
7.-Place the cover and fix the screws.
Always use original ECLER GENUINE SPARE PARTS for your SMAC.
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