Tascam M-300 Series, Operation & Maintenance Manual

Page: 17 / 167

Ll N E IN Signal Routes
ly high Mic signals or line level signals, insert
the 30 dB Pad.
b. LINE (Tape) TRIM- Lower Knob
Provides variable attenuation for signals from
the LINE INput connector and the TAPE
Return INput jacks.
0 EQualizer
The 300 equalizer or EQ section offers the user
a comprehensive control network for the ad·
justment of the tonal structure of the signal.
The EQ system is divided into three sub·sactions:
High Frequency (controlling all signals above
10 kHz), Midrange (for control over signals from
200 Hz to 4 kHz), and Low Frequency (provid·
ing control over frequencies from 1 kHz down
to 50 Hz and below).
The high frequency section is shelving type and
allows the 12 dB boost or cut at 10kHz.
The midrange section is a quasi-parametric or
sweep-type network. The concentric lower
knob selects the center frequency from 200 Hz
to 4 kHz. The upper knob provides for 15 dB
of boost or cut at the chosen center frequency.
The band width, also known as the
"0",
is fixed
at 7.6 of an octave, or a "Q" of 1.6.
The low frequency section is also a quasi-para·
metric, sweep·type network. The center frequen·
cy range is from 1 kHz down to 50 Hz. The gain
range is 15 dB of boost or cut. The band width
is
7.6
of an octave, corresponding to a Q of
1.6.
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Both the mid and low frequency networks arE
peak-dip designs.
For more information on EO
see
page 44.
0 EO
ON Switch
This switch allows the signal to be sent to,
01
routed around, the EQUALIZER section. Wher
the switch is in the down position, the signa
in the channel is sent to the EO for processing
Use the "up" or "off" position if the signal ir
the channel has already been sent through ar
equalizer or requires no tonal adjustment, it car
be routed to bypass the EO electronics entirely.
0, Ill
AUXiliary
1
& 2 Controls
The AUX systems are non dedicated busse1
which can be used for Headphone Cue, Effect
Send, Echo Send, Monitor/Foldback, Broadca�
Remote Feed, and reference Recording Busses.
These two controls provide identical functions
Each determines the level of signal sent to their
1!