Joemeek oneQ2 Master Channel - Manual (Page 11)

Meequalizer
The oneQ 2 "Meequalizer" is a highly effective, versatile and
musically rewarding four-band equalizer, or tone control system.
Each stage allows boost or cut of up to 15dB around the
frequency in question. The 'EQ' switch turns the equalizer on, and
the green LED lights when active.
The LF band is centred at either 80Hz or 120Hz. Cutting can be
used to reduce unwanted low frequency noise, such as hum or
rumble. Boosting can bring out the warmth and body of bass lines
and (especially around 80Hz) kick drums.
The Lower Mid band can be tuned or "swept" anywhere between
200Hz and 2kHz. It may help to think of it as like a graphic
equalizer, only instead of lots of frequency bands, you have just
one, but it can be moved to cover any given frequency band.
Cutting the Lower Mid can reduce boominess or other annoying
resonances. Boosting can bring out the body and warmth of a
vocal, or the harmonics of bass instruments.
The Upper Mid band can be tuned or "swept" anywhere between
600Hz and 10kHz. Cutting the Upper Mid can reduce sibilance or
other annoying resonances. Boosting can bring out the
harmonics of instruments or make vocals more distinct.
Increasing or reducing the "presence" of an instrument or vocal in
this way, can appear to move the sound forwards or backwards in
a mix.
The HF or treble section is centred at either 7kHz or 14kHz.
Boosting the 14kHz band gives a sense of "air" or "sparkle" to
vocals, instruments and mixes, without boosting harsh upper-mid
frequencies. Alternatively with bass instruments, cutting this
band will reduce HF noise such as hiss and crackle. The 7kHz
setting is very effective at controlling sibilance and reducing
harshness, or indeed creating it, for example by boosting the
harmonics of electric guitars.
The EQ 'ON' switch allows comparison between equalized and
unequalized sound (LED lights when the Meequalizer is active).
The Meequalizer is normally after the Preamplifier, the Insert
Point and the Compressor. Pressing the Compressor's 'POST
EQ' switch however, places the Meequalizer before the
Compressor.
Technical stuff
Each section of the Meequalizer has a peaking or "bell" shaped
frequency response, which will be found to be musically more
satisfying than conventional "shelving" equalizers. The use of bell
curves at LF and HF also avoids boosting subsonics and
ultrasonics which can have adverse effects on other studio
equipment, such as recorders, monitor amplifiers and speakers.
The "Q" value of the peaking filters is 0.9 (or 1.6 octaves). Zero
phase distortion ensures the best possible audio coherence.
LF and HF frequency response
Mid frequency response (at 300Hz and 5kHz)
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