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REDBACK
Mono 31 Band Graphic Equaliser
®
INTRODUCTION
Congratulations and thank you for choosing the Redback A 5330 31 band graphic equaliser.
Features:
• Constant Q circuit with a 3% centre frequency accuracy.
• Selectable boost/cut range of ±6dB or ±12dB.
• Active balanced and unbalanced input and output connections.
• Variable input level control
• Clip level indication
• Ground lift switch
• Power off automatic bypass function
• 12 month warranty
SOUND REINFORCEMENT APPLICATIONS.
• Patch the equalizer into the effects loop of an instrument amplifier or between a preamp and power
amp to have precise control over the complete sound.
• Putting an equalizer in line with a musical instrument allows you to modify the sound of the
instrument. You can brighten the sound, add body to a thin sounding instrument, or you can give the
sound a totally different character.
• An equalizer allows you to eliminate unwanted sounds, such as 50 Hz hum.
• Shape the sound by changing the frequency response of the track.
SPECIFICATION
Model / Description: ........................................................A 5330, 1 x 31 Band, 1/3 Octave, ISO spacing
Slider travel:..........................................................................................20mm with positive centre detent
Range: ..............................................................................................................±6dB or ±12dB selectable
Input connections: ............................................................................Active balanced XLR and 1/4" TRS
Input impedance: ........................................................................20kΩ (balanced) or 15kΩ (unbalanced)
Maximum input level: ....................................................................................................................18dBV
Output connections:............................................Active balanced XLR and 1/4" TRS, Unbalanced RCA
Output impedance: ........................................................................................................................<600Ω
Maximum output level: ..................................................................................................................16dBV
High pass filter: ..............................................................................................................40Hz (12dB/oct)
Frequency response: ..........................................................................................20Hz to 50KHz at -3dB
THD: ................................................................................0.02% (@ 1KHz, all controls at middle position)
S/N Ratio:..........................................................................................................................93dB (@ 1KHz)
Power Supply: ..........................................................................................................230VAC (±5%) 50Hz
Power Consumption: ..........................................................................................................................7W
Dimensions: ................................................................................................................480 x 220 x 44mm
Weight: ..............................................................................................................................................3.1kg
CONTROLS AND INDICATORS
1. Filter level controls : Each one of these linear potentiometers will boost or cut either 6dB or 12dB of the
selected frequency. When all the sliders are in the centre position, the output of the equalizer has a flat
response.
2. Level control : This control sets the signal level to the equalizer. Its centre position is unity gain (no
boost or cut) . If the clip LED (5) is on continuously, turn down this control
until it only flickers occasionally.
3. High pass filter : This switch electronically inserts a filter into the signal path, which cuts the low fre-
quencies at 40Hz (12dB per octave). The LED (12) indicator lights when the switch is depressed and filter
is in the circuit.
4. Low pass filter : This switch electronically inserts a filter into the signal path, which cuts the high fre-
quencies at 16KHz (12dB per octave). The LED (13) indicator lights when the switch is depressed and the
filter is in the circuit.
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Unbalanced RCA
REDBACK
Mono 31 Band Graphic Equaliser
®
Figure 1: Front and Rear panel layout.
Refer to text for further information.
Page 3
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