Fostex LM16 - Manual (Page 29)

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Model LM16 [Mixer basics]
You can tailor the sound using the channel
equalizer. For best results, the equalizer
should be used to make the sound natural.
<Note>: You can equalize the pre-fader signal
which is not affected by the channel fader.
<Memo>: In general, the range of frequency
of sound that human beings can hear is about
20 Hz to 20 kHz. The following shows the fre-
quency ranges of instruments and vocals.
10 20 60 100120 250 500 1k 2k 4k 8k 10k15k 20k (Hz)
Piano
Bass
Baritone
Tenor
Alto
Soprano
VOCAL
Bass
Guitar
Violin
Trumpet
Tenor saxophone
Soprano saxophone
Bass drum
Snare drum/Tom tom
Hi-hat
Electronic organ
Synthesizer
LOW BOOST
LOW CUT
HIGH BOOST
HIGH CUT
MID CUT
MID BOOST
FLAT
<Tips for equalizing>
If the mixed sound is not clear, we recom-
mend to find the channel which makes the
mixed sound unclear and slightly cut the
frequency range of the channel. To much
boosting may make the mixed sound un-
clear.
Listen to the mixed sound repeatedly, com-
paring with the original (non-EQ) sound,
and challenge to make your favorite sound.
Using of low-cut filter may be effective
when you use a microphone.
<Gain adjustment while monitoring>
To adjust the gain while monitoring an in-
put signal, connect headphones to the
[PHONES] jack (or connect a powered moni-
tor speaker to the [MONITOR OUT] jacks) and
rotate the [PHONES] control (or [MONITOR]
control) little to the right from the leftmost
position. In this condition, perform the fol-
lowing.
1) Press the [SOLO] switch on the mixer
channel to solo the channel.
2) Input the source sound (from a microphone
or line).
3) Rotate the [PHONES] control (or [MONITOR]
control) clockwise gradually.
4) Adjust the [TRIM] control to get the optimum
gain.
5) After adjusting the gain, press the [SOLO]
switch to de-solo the channel.
• Low-cut filter
The low-cut filter is often known as a high-
pass filter. It passes high frequencies and elimi-
nates low frequencies.
By pressing the [LOW CUT] switch to set to
"ON" (
), the ultra low frequencies under
80 Hz are eliminated with a -12 dB/octave
slope.
The low-cut filter helps prevent wind noise,
mic handling noise, etc. It is recommended
to enable the low-cut filter when you connect
a microphone.
• Limiter
The limiter can be used to prevent clipping
when a too hot signal is input.
The limiter is does not work as far as an input
signal is below the threshold level.
When the input signal exceeds the threshold
level, it reduces or attenuates the input sig-
nal thereby holding the output signal level
too high.
The output limiter provided in the master
section is effective to prevent damaging the
main speakers in live or PA applications.
Equalizer