Alesis PEQ-450 User Manual

PEQ-450 Reference Manual

The 

 button turns Band 1 into a highpass filter. This button

disables the 

 and 

 knobs for Band 1. When this function is on,

all audio below the Band 1 Frequency setting will be filtered out at a
slope of 12dB per octave.

Think of this function as a severe bass rolloff. It is useful for getting
rid of low-frequency hum, mic bumps, and rumbles.

The 

 button turns Band 5 into a lowpass filter. This button

disables the 

 and 

 knobs for Band 5. When this function is on,

all audio above the Band 5 Frequency setting will be filtered out at a
slope of 12dB per octave.

Think of this function as a severe treble rolloff. It is useful for getting
rid of tape hiss, TV or computer monitor whine, and other high-
frequency noises.

0dB

+3dB

+6dB

+9dB

+12dB

-12dB

-9dB

-6dB

-3dB

40Hz

200Hz

1kHz

10kHz 20kHz

Frequency

Gain