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Koss QZ900

See usage instructions for more options and info.

Parametric EQs

In case of using parametric equalizer, apply preamp of -6.8dB and build filters manually with these parameters. The first 4 filters can be used independently. When using independent subset of filters, apply preamp of -5.9 dB.

Type Fc Q Gain
Peaking 42 Hz 0.34 -8.4 dB
Peaking 180 Hz 0.87 -5.2 dB
Peaking 2567 Hz 1.02 -13.4 dB
Peaking 3410 Hz 0.32 10.4 dB
Peaking 15 Hz 0.69 -4.9 dB
Peaking 1806 Hz 5.2 -2.3 dB
Peaking 4650 Hz 1.64 2.3 dB
Peaking 5375 Hz 6.85 -7.5 dB
Peaking 11226 Hz 3.55 2.9 dB

Fixed Band EQs

In case of using fixed band (also called graphic) equalizer, apply preamp of -8.2dB (if available) and set gains manually with these parameters.

Type Fc Q Gain
Peaking 31 Hz 1.41 -11.8 dB
Peaking 62 Hz 1.41 -5.8 dB
Peaking 125 Hz 1.41 -7.2 dB
Peaking 250 Hz 1.41 -4.6 dB
Peaking 500 Hz 1.41 0.3 dB
Peaking 1000 Hz 1.41 4.2 dB
Peaking 2000 Hz 1.41 -4.2 dB
Peaking 4000 Hz 1.41 2.8 dB
Peaking 8000 Hz 1.41 8.0 dB
Peaking 16000 Hz 1.41 -4.8 dB

Graphs