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Operation
Begin with all frequency sliders and the GAIN controls in the centre position (no boost or cut) at 0dB.
Switch the “IN/OUT” button to IN and the respective LED will light.
Adjust each frequency in turn to acquire the best response and reduce any problem frequencies.
Bear in mind that many loudspeakers cannot reproduce frequencies down as far as 20Hz and that the energy from
the amplifier at these low frequencies is wasted as heat in the speaker coil. Therefore, the “LOW CUT” may be
preferred to be on in sound reinforcement scenarios.
Also, with live PA situations, the crossover point between subs and mid-top cabs can generate phase problems
which may be alleviated by reducing frequencies around this point.
Extremely high frequencies are often not feasible for live sound systems, due to the limitations of microphones and
loudspeakers (and most people’s ears) and 20kHz may be reduced to save wasted amplifier energy at these high
frequencies.
For whichever particular application, experimentation and practice will eventually give the best results from your
equalizer.
SPECIFICATIONS
Power supply
115/230Vac 50/60Hz - selectable (IEC)
Frequency response
20Hz - 20kHz
Input impedance : Balanced
40kohms
Input impedance : Unbalanced
20kohms
Output impedance : Bal/Unbal
330ohms
Channel separation
>50dB
Signal to noise ratio
>102dB
THD
0.01%
Dimensions
44 x 482 x 138mm
Weight
2.0kg
Power supply
115/230Vac 50/60Hz - selectable (IEC)
Frequency response
20Hz - 20kHz
Input impedance : Balanced
40kohms
TROUBLESHOOTING
Ensure mains voltage is correct and connected properly
Ensure front panel power switch and mains outlet switch are on
Check XLR and/or jack leads are OK and connected properly
Check that GAIN control and sliders are not set to -12dB
Check that inputs and outputs are connected the correct way around
If overall frequency settings are above zero on average, reduce the Gain
Reduce frequency sliders with very high settings to check which is distorting
If output from mixer is XLR, connect via XLR to equalizer
If input to amplifier is XLR, connect via XLR from equalizer
If output from mixer is jack, connect via jack to equalizer
If input to amplifier is jack, connect via jack from equalizer
Increase Gain control(s) to compensate
Note: for further troubleshooting, refer equipment to qualified service personnel for testing
© Citronic 2011
4


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