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Superlux HD 681 EVO

Superlux HD 681 EVO

See usage instructions for more options and info.

Parametric EQs

You can use filters 1-5 or 1-10. Apply preamp of -4.4 dB or -5.0 dB, respectively.

# Type Fc (Hz) Q Gain (dB)
1 LowShelf 105 0.7 4.3
2 Peaking 50 0.46 -7.5
3 Peaking 480 0.86 3.2
4 Peaking 4200 3.47 5.6
5 Peaking 10000 0.83 -6.5
6 Peaking 1383 2.89 2
7 Peaking 1966 3.12 -1.3
8 Peaking 2599 2 -2.7
9 Peaking 3775 4.63 2.2
10 HighShelf 10000 0.7 -1.8

Fixed Band EQs

When using fixed band (also called graphic) equalizer, apply preamp of -3.2 dB (if available) and set gains manually with these parameters.

# Type Fc (Hz) Q Gain (dB)
1 Peaking 31 1.41 -1.2
2 Peaking 62 1.41 -3.2
3 Peaking 125 1.41 -1.8
4 Peaking 250 1.41 -0.1
5 Peaking 500 1.41 2.9
6 Peaking 1000 1.41 1.7
7 Peaking 2000 1.41 -3
8 Peaking 4000 1.41 4
9 Peaking 8000 1.41 -5.6
10 Peaking 16000 1.41 -9.3

Graphs