06
EQUALIZATION
Markbass amps are designed to faithfully reproduce the natural sound of your bass. If you have a good instrument, very little equalization (EQ) if any should be required. Bass
guitars produce a surprisingly wide range of frequencies from extremely low frequencies that are more felt than heard, to extremely high frequencies that pass through your
cabinet’s tweeter and are barely audible to the human ear. As you experiment with your EQ settings, you will notice that all the different frequency ranges play essential roles
in making up your bass tone:
LOW frequencies constitute music’s sonic foundation they give power to your sound, physically resonating your listeners’ bodies (and yours!), sometimes even causing people
to move and dance!
LOW MIDs (MID LOW or Mid Frequency Low) make your bass sound loud, projecting the sound over long distances, filling the room.
HIGH MIDs (MID HIGH or Mid Frequency High) convey the pitch of the notes that you play. Clarity of this range ensures that the melodies in your bass lines are heard. If detail
is missing in this range, your melodic contribution to the music will suffer.
HIGH frequencies carry the percussive content of your playing, the attack of your notes, the sound of your finger or pick passing over the string, fret noise, and in the case of
slap bass, the ‘tick’ noise produced when the strings bounce off the frets.
If any one of these frequency ranges is neglected or poorly represented by your amp, you are not hearing an accurate representation of the sound that your bass is generating.
Since these amps have been designed to give you clear, detailed and musical sound at all frequencies, when the amp is set ‘flat’ with all EQ knobs at 12 o’clock you should hear
a very true mirror of the sound of your bass.
However, the following circumstances will require you to use equalization:
1. The signal from your bass is lacking output level in one of the frequency ranges described above.
2. The room or venue you’re playing in has poor acoustics and excites a certain frequency. For example, if you’re playing on a hollow stage, certain low frequencies may
sound disproportionately loud or out-of-control, and you may notice that every time you play a certain note, it sounds much louder than all the others. In these cases
the offending frequency needs to be identified and reduced.
3. You’re seeking to alter the basic sound of your instrument in order to achieve a particular musical effect.
Equalization should be treated as fine-tuning. Spend some time listening to your bass through the amp with all the EQ controls in the neutral (12 o’clock) position before you start
changing the settings. You’re likely to need little or no equalization!
However, if and when equalization is required, you will find this amp's EQ controls to be powerful.
The LOW (5) EQ control is set to a center frequency of 80 Hz. This means that it either boosts or cuts the volume of the frequencies around 80 Hz, to a maximum of 12 decibels.
The LOW-MID (MID LOW) (6) EQ control boosts or cuts the frequencies around 400 Hz, by as much as 12 decibels.
The HIGH-MID (MID HIGH) (7) EQ control boosts or cuts the frequencies around 800 Hz, by as much as 12 decibels.
The HIGH (8) EQ control boosts or cuts the frequencies around 3 kHz, by as much as 12 decibels.
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