Genelec 8250A, 8240A manual Treble Tilt control

This feature is designed to compensate for the boost often occurring at this frequency range when the loudspeaker is placed upon a meter bridge, table or similar reflective surface.

Treble Tilt control

Treble Tilt control (switches 6 and 7) allows adjusting the treble response above 5 kHz by +2 dB, -2 dB or -4 dB, which can be used for correcting an excessively bright or dull sounding system or to compensate for high frequency level loss if the loudspeaker is placed behind a screen.

An acoustic measuring system such as MLSSA or WinMLS is recommended for analyzing the effects of the adjustments, however, careful listening with suitable test recordings can also lead to good results if a test system is not available. The table below shows some typical settings in various situations.

Always start adjustment by setting all switches to "OFF” position. Measure or listen systematically through the different combinations of settings to find the best frequency balance. See table below for some typical settings in various situations. Please note that the GLM Loudspeaker Controller allows a much more versatile and precise set of controls to be used, and supports the fully automatic system alignment feature, the Genelec AutoCal.

Loudspeaker Mounting Position	Treble Tilt	Bass Tilt	Bass Roll-Off	Desktop
Flat anechoic response	None	None	None	None
Free standing in a damped room	None	-2 dB	None	None
Free standing in a reverberant	None	-4 dB	None	None
room
Near field on a reflective surface	None	-2 dB	None	-4 dB
In a corner	None	-4 dB	-4 dB	None

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