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ReQ·131 Instruction Manual
v1.2
A brief guide of the ReQ·131
The ReQ·131 is based on most hardware 31-ISO band equalizer units.
The Front Panel (folded & unfolded views)
FOLD-UNFOLD [1] – To allow the RE to be maximized or minimized
BYPASS SWITCH [2] – To determine signal flow (BYPASS effect, effect ON, or effect OFF)
HEAR EQ button [3], to isolate and examine your EQ effect (see ‘
HEAR EQ mode and how it works’)
SIGNAL PATH AND DB MODE dropdown/selector knob [4], to select audio signal mode & db range
PATCH NAME and PATCH BROSWER [5] buttons; for loading & saving presets.
MINI OUTPUT LEDs [6] to indicate signal output signals when ReQ131 is folded.
TAPE STRIP [7] – Used to identify the RE. Double click to edit.
GAIN [8] – A trim control to boost / cut overall volume by +/-15dB.
DRY/WET [9] – A mix control between affected audio and original signal.
LOW PASS FILTER [10], HI PASS FILTER [12] knobs; to remove frequencies at 12dB / octave roll off.
Frequency setting determines the point where the roll off begins.
LOW PASS BYPASS [11], HI PASS BYPASS [13] buttons; to bypass the filters.
INPUT LEDs and OUTPUT LEDs [14] to indicate signal input & output, for re-balancing aid.
dB RANGE UNIT displays [15] indicating the min / max dB level of the scale (set by the SIGNAL PATH
AND DB MODE selector)
FREQUENCY BAND faders [16] – boost or cut at the set frequency (fixed Q of 1/3
rd
octave)
The GAIN knob can attenuate between -15dB through to +15dB. This allows you to decrease the gain if
you raise the fader bands, or increase the gain if you lower the bands (see ‘Working the ReQ·131 in
practice’).
The DRY/WET knob can be used to mix between wet and dry affected signals. This can be used creatively,
to scale the amount of unprocessed signal with the processed signal (pre-filter mix control).
The LOW PASS and HIGH PASS knobs are high pass and low pass filters. These attenuate certain
frequencies depending on the setting at a rate of -12dB per octave. These are used to ‘cut away’ the high
frequency content (Low passing) of the audio and the low frequencies (High passing). If you set the Low
Pass dial to 10 kHz, this would mean that at 20 kHz the audio signal at that point in the frequency range
would be reduced by 12dB (think simply using the dials as precise ‘bass’ and ‘treble’ reducers).
NOTE: 1 octave range is exactly half or exactly double the current frequency setting, so if 500Hz is the
chosen frequency, 1 octave down is 250Hz, and 1 octave up is 1000Hz. This applies to all frequencies.