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Koss Pro4AA 1975

See usage instructions for more options and info.

Parametric EQs

In case of using parametric equalizer, apply preamp of -6.7dB and build filters manually with these parameters. The first 5 filters can be used independently. When using independent subset of filters, apply preamp of -7.0 dB.

Type Fc Q Gain
Peaking 37 Hz 0.4 6.9 dB
Peaking 336 Hz 0.6 -9.8 dB
Peaking 695 Hz 1.11 9.6 dB
Peaking 2452 Hz 0.8 -10.8 dB
Peaking 4384 Hz 0.6 11.2 dB
Peaking 63 Hz 5.3 1.3 dB
Peaking 3901 Hz 4.55 3.0 dB
Peaking 4144 Hz 1.27 -1.5 dB
Peaking 8004 Hz 2.75 1.8 dB
Peaking 10252 Hz 2.23 -1.0 dB

Fixed Band EQs

In case of using fixed band (also called graphic) equalizer, apply preamp of -7.5dB (if available) and set gains manually with these parameters.

Type Fc Q Gain
Peaking 31 Hz 1.41 6.6 dB
Peaking 62 Hz 1.41 5.0 dB
Peaking 125 Hz 1.41 -0.4 dB
Peaking 250 Hz 1.41 -7.8 dB
Peaking 500 Hz 1.41 -0.6 dB
Peaking 1000 Hz 1.41 4.1 dB
Peaking 2000 Hz 1.41 -7.3 dB
Peaking 4000 Hz 1.41 5.8 dB
Peaking 8000 Hz 1.41 5.5 dB
Peaking 16000 Hz 1.41 1.1 dB

Graphs