dbx 122 - Page 13

12
Graphic Equalizers
If you use a graphic equalizer with your music system,
the equalization must not be introduced between the dbx’s
RECORD OUTPUTS and the tape recorder’s inputs, or
between the recorder’s outputs and the dbx’s PLAY
INPUTS. Ideally the dbx unit is installed in the preamp’s
tape monitor loop, and the graphic equalizer is installed
between the preamp output and the power amplifier input
(Figure 8). Alternately, install the graphic equalizer in the
preamp’s tape monitor loop and place the dbx unit in the
graphic equalizer’s tape monitor loop, but be sure to set the
equalizer so its effect comes after the dbx unit.
Equalized Speaker Systems
If you have an equalized speaker, such as a Bose system
or Electro-Voice “Interface” series, then the dbx unit can
be connected in the speaker equalizer’s tape monitor loop
and the equalizer should be installed in the preamp’s tape
monitor loop (Figure 9).
NOTE: Never connect any other electronic equipment
between the dbx unit and your tape recorder’s inputs or
outputs. This could cause inaccurate encode/decode tracking
and loss of quality in the recorded signal.
CAUTION: Make sure that the power is OFF on all
equipment when installing the dbx unit. As a precaution,
turn down your amplifier VOLUME control prior to
switching
on
the
dbx
unit
for
the
first
time.
Inadvertent
decoding of non-encoded programs (dbx in PLAY mode)
can create surging to high volume levels.
GRAPHIC EQ
or Similar Unit
Fig. 8 — Where to Connect a Graphic Equalizer, Electronic Cross-
over, Reverb, Matrix 4-Channel Decoder, Etc.
(Special signal processing follows the dbx encode/decode
process.) Setup for dbx 124 on next page.