Manage System:Custom-Filters

The Bass & treble shelf options have been introduced in to Manage systems in the ADVANCED tab (bottom of ADVANCED page). This will allow you to trim the music playback and add/attenuate the Bass and/or treble signals.
This can be used with or without Space Optimisation.

The graph shows you the frequency response graph with showing:

The Gain -5dB to +5dB, in 1dB steps,

versus

The frequency 10⁰=1Hz, 10¹=10Hz, 10²=100Hz, 10³=1kHz, 10⁴=10kHz.

Channel

Front Left + Front Right : by default this is set for these channels, but click to view any other applicable channels in the system.

Show System filters: Show any current filters applied.

[[ {{{2}}} | APPLY TO SYSTEM ]]: Upload change to Linn DS/DSM.

BASS SHELF (For all passive and/or Exakt speakers/Exaktbox channels)

Frequency (Hz): The crossover frequency of the Bass shelf.

Gain (dB): The gain, or attenuation, for this bass crossover point.

TREBLE SHELF (For all passive and/or Exakt speakers/Exaktbox channels)

Frequency (Hz): The crossover frequency of the Treble shelf.

Gain (dB): The gain, or attenuation, for this Treble crossover point.

SUBSONIK FILTER (for non-Exakt systems. I.e. Passive only channels)

[[ {{{2}}} | ADD ]]: Allows you to add a subsonic filter on the channels selected.

Frequency (Hz): Define the cut-off for this filter.

RESET TO SYSTEM: Load currently applied Custom filters values for further fine adjustment.

SET ALL OFF: Disable all Custom Filters

Note

• The Gain and frequency values can be directly entered using the keyboard by clicking on the respective number value.
• The Sub-sonic filter brings immense benefits to midrange performance and improves the overall musicality of the system. By reducing the cone movement at inaudibly low frequencies, the bass/mid-drive unit retains better linearity through the midrange. The filter cut-off should typically be set quite low; about 7-12 Hz for a large loudspeaker, and 20-30 Hz for a small stand-mount speaker.

Do not use a bass heavy track to set this subsonic filter. You may find some recordings have studio noise that adds inaudibly low frequency to the recording. E.g. Bob Dylon's - Subterranean Homesick Blues. This would be an ideal setup track to improve the musicality of the system.