9
2. FREQUENCY SLIDERS
Each slider controls the amount of boost or cut to be applied to the associated
frequency band, over a range of ±6dB or ±12dB, as selected by the Range
Selector. The center detent indicates flat response.
In the
Q-2151
or
Q-2152V
, the interval between adjacent slider frequencies is 2/3
octave.
In the
Q-1311
,
Q-1312V
and
Q-2312,
the interval between adjacent slider
frequencies is 1/3 octave.
3. RANGE SELECTOR and RANGE INDICATORS
A range selector switch is provided on all of the Q-Series models, to select a
resolution of ±6dB or ±12dB for the EQ sliders. The ±6dB setting allows greater
resolution in situations where large amounts of boost or cut are not needed.
A yellow light indicates a boost and cut of +12 dB; a green light indicates a boost
and cut of + 6 dB.
4. BYPASS SWITCH and INDICATOR
The Bypass Switch is useful for quick comparison of the original sound with EQ’ed
sound, allowing the equalization signal to be bypassed for a quick “before and
after” comparison of the EQ effects. When the Bypass LED is lit the EQ is in bypass
mode. The stereo Q-2151, Q-2152V, and Q-2312 have two of these buttons
allowing either channel to be bypassed independently. Note that when the
Bypass button is activated, the Level Control is bypassed as well.
5. OVERLOAD INDICATOR
This LED lights if any of the equalizer’s circuitry approaches 5dB before clipping.
Occasional blinking of this indicator is acceptable, but if it lights continuously it is
necessary to reduce the input level, frequency boost, or the output level.
6. LOW CUT CONTROL (Q-1311, Q-1312V, and Q-2312 only)
Most audio systems cannot reproduce subsonic sounds, nor can the human ear
hear them. Yet they are often present in audio signals. If allowed to reach power
amplifiers or recording devices, they can rob power and cause distortion while
adding little, if anything, to sound quality.
The Low Cut knob allows the cutoff frequency to be set anywhere in the range
of 10Hz to 250Hz. This also makes it useful for the removal of some types of RF-
induced hum. Roll off beyond the cutoff point is at 12 dB per octave.
7. HIGH CUT CONTROLS (Q-1311, Q-1312V, and Q-2312 only)
Most audio systems cannot reproduce supersonic sounds, nor can the human ear
hear them. Yet they are often present in audio signals. If allowed to reach power
Содержание Q-1311
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