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Superlux HD 681

Superlux HD 681

See usage instructions for more options and info.

Parametric EQs

You can use filters 1-5 or 1-10. Apply preamp of -5.9 dB or -5.9 dB, respectively.

# Type Fc (Hz) Q Gain (dB)
1 LowShelf 105 0.7 5.8
2 Peaking 174 1.11 1
3 Peaking 496 1.05 2.4
4 Peaking 1105 0.57 -1.8
5 Peaking 5194 4.12 -6.1
6 Peaking 65 2.2 -0.5
7 Peaking 2458 3.46 -1.4
8 Peaking 3826 5.94 3.2
9 Peaking 7758 3.68 -2.3
10 HighShelf 10000 0.7 -3.2

Fixed Band EQs

When using fixed band (also called graphic) equalizer, apply preamp of -7.7 dB (if available) and set gains manually with these parameters.

# Type Fc (Hz) Q Gain (dB)
1 Peaking 31 1.41 6.9
2 Peaking 62 1.41 3.5
3 Peaking 125 1.41 2
4 Peaking 250 1.41 0.6
5 Peaking 500 1.41 1.9
6 Peaking 1000 1.41 -1.7
7 Peaking 2000 1.41 -0.8
8 Peaking 4000 1.41 -0.6
9 Peaking 8000 1.41 -3.1
10 Peaking 16000 1.41 -6.3

Graphs