Prelistening (Program-Monitoring); Channel Gain; Channel Equalization; Program Reverse Switch - Ecler HAK320 Manual De Instrucciones

4.2. Prelistening (Program-Monitoring)

The HAK is equipped with a prelistening system that enables the monitoring of the main
inputs through the VU-meter and the headphones. Thanks to the Program-Monitor function (45) and
the Monitor crossfader (31) it's possible to quickly fade between the two prelistening channels.

4.3. Channel gain

All the HAK320 input channels have accessible input sensitivity GAIN (23-37) and ADJ
(17) controls. These controls have the function of compensating for differences of level existing
between the sound sources connected to the table.
All input sensivity adjustments must be done very carefully using the VU-METER and/or
headphones as a reference and avoiding that all the red LEDS of the VU-METER light up, otherwise
input could be clipped (Overload). MIC input gain control is located in back panel (ADJ 17).

4.4. Channel equalization

The tone controls for each of the two main channels provide a +10/-30dB boost/cut at high
and low frequencies and +10/-25dB at the mids. This great attenuation range is specially indicated
for the already famous "kill" effect, which nearly "cuts" the band over which it performs. Following
indications of experienced DJs, we have arrayed the control-knobs of the EQ section horizontally.
This placement enables a more comfortable area to work with. Additionally, the HAK320 offers a
dedicated balance control over each channel.
Moreover MICRO channel has two band (bass, treble) tone control.
ATTENTION: Use equalization carefully, by boosting too much the low frequency range,
you can induce an excessive displacement of the speakers membrane.

4.5. Program Reverse Switch

Program Reverse Switch activation (10) drives sound sources connected to INPUT 1 to
INPUT 2 and vice versa but without changing GAIN adjustments.

4.6. Replaceable components (faders, crossfader and cut)

In addition to an internally modular assembly system, the HAK have mounted in an
easy-to-replace module all the main components that suffer an especially high wear: the two main
faders, the crossfader and the cut switches. All these components can be substituted by just using a
screwdriver because they have multipin connectors.
The HAK320 uses a new generation of faders based on the VCA concept (VCA=Voltage
Controlled Amplifier), offering an exceptional precision and smoothness. This fader can achieve a
lifetime of 300.000 cycles, (30 times more than a high quality mechanical fader). After this time
period, and if the faders have been constantly abused, they will show signs of malfunction. To
replace the crossfader, begin disassembling the silver-plated front panel, having removed the front
buttons first. The crossfader is fitted with two screws and is connected via a multipin connector.
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