Graphic equalisers can be invaluable for counteracting poor room or venue acoustic problems such as feedback and reverberation. The audio spectrum is divided across 31 notch bands each adjustable plus or minus 6 or 12dB from centre or flat position. Feedback or reverberation can be reduced or eliminated by notching out ie. reducing the system frequency response at the offending frequency sector. Usually connected between the pre amp out and power input of the sound system amplifier. An earth lift switch helps eliminate mains earth loop hum and buzz. High pass and low pass selectable filter switches provide filters of 12dB per octave below 40Hz and above 16kHz respectively. Three different types of connectors are provided for connection to the amplifier. 3 pin XLR and 6.35mm sockets offer balanced connections, whilst RCA sockets provide unbalanced operation. A switch is provided to bypass all control settings. Overall output is controlled by the level control.
Removal of AC power in the ON position puts unit into bypass mode making this suitable for 24V backup systems
Features:
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1U 19" rack mount
31 bands of adjustment
Ultra low distortion
Balanced inputs and outputs
Unbalanced inputs and outputs
Earth lift switch
±6 or ±12dB on each band
High & Low pass filter
Master level control
EQ bypass switch
Suitable for 24V DC backup systems
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Specifications:
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Input impedance: 20K Ohm (bal.) 15k Ohm (unbal.)
Maximum input level: 18dBv
Frequency resp: 20Hz - 15kHz (-3dB)
Input/output connections: Balanced XLR, 6.35mm jack, Unbalanced RCA
Output impedance: <600 Ohm
Maximum output level: 16dBv
Load impedance: >10K Ohm
High pass filter: -12dB/octave below 40Hz
Low pass filter: -12dB/octave above 16kHz
Frequency response: 20Hz to 50KHz at -3dB
THD + N %: 0.02% (@ 1KHz, all controls at middle position)
S/N ratio: 93dB (@ 1KHz)
Power supply: 230 Vac (±5%) -50Hz
Dimensions: 480W x 220D x 44H
Weight: 3.1Kg
*Specifications subject to change without notice
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