Mackie Spike User Manual page 41

Overview screen continued
The Overview Screen
HP/LP Filter section
The high pass (HP) and low pass (LP) fi lters are active when the HP and LP lights are on. You can
turn the LP fi lters on and off here, and change the fi lter corner (cutoff) frequency.
• The HP fi lters can only be enabled by pressing the front panel HIGH PASS fi lter buttons. (They
cannot be turned on by clicking the HP lights in the software screen.) HP fi lters are useful for re-
ducing low frequency rumble or loud Tuba solos, or if your speakers or neighbors can't handle it.
The high frequencies pass through unhindered, and the lower frequency range is attenuated.
• The LP fi lters can be enabled or disabled by clicking the LP buttons in the Overview screen. LP
fi lters are useful for reducing high frequency effects like hiss and screechy violins. The low fre-
quencies pass through, and the higher frequency range is attenuated.
• The corner frequencies can be changed in the frequency windows to the right of the HP/LP but-
tons. Click in the window and drag up or down to increase or decrease the frequency.
Note: An HP/LP fi lter display appears in the Parametric EQ screen (see page 52). Howev-
er, the fi lters and display are independent of the EQ section. The fi lters are always pre-DSP,
and are not affected by any DSP settings, or the DSP module order.
HP/LP Filters
Frequency
User's
41
Guide