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Superlux HD 681

Superlux HD 681

See usage instructions for more options and info.

Parametric EQs

In case of using parametric equalizer, apply preamp of -6.4dB and build filters manually with these parameters. The first 5 filters can be used independently. When using independent subset of filters, apply preamp of -6.4dB.

Type Fc Q Gain
Peaking 10 Hz 0.11 6.0 dB
Peaking 4129 Hz 3.6 9.1 dB
Peaking 4776 Hz 0.48 -3.1 dB
Peaking 4868 Hz 5.18 -6.2 dB
Peaking 19610 Hz 0.51 -5.6 dB
Peaking 59 Hz 2.84 -1.4 dB
Peaking 587 Hz 0.79 2.3 dB
Peaking 909 Hz 1.58 -2.5 dB
Peaking 6417 Hz 4.59 1.6 dB
Peaking 7443 Hz 5.34 -2.0 dB

Fixed Band EQs

In case of using fixed band (also called graphic) equalizer, apply preamp of -7.8dB (if available) and set gains manually with these parameters.

Type Fc Q Gain
Peaking 31 Hz 1.41 7.0 dB
Peaking 62 Hz 1.41 1.5 dB
Peaking 125 Hz 1.41 1.9 dB
Peaking 250 Hz 1.41 0.5 dB
Peaking 500 Hz 1.41 2.1 dB
Peaking 1000 Hz 1.41 -1.4 dB
Peaking 2000 Hz 1.41 -1.4 dB
Peaking 4000 Hz 1.41 0.8 dB
Peaking 8000 Hz 1.41 -3.5 dB
Peaking 16000 Hz 1.41 -3.8 dB

Graphs