dbx 128 - BRIEF OPERATING INSTRUCTIONS; Playing dbx-Encoded Discs; Making dbx-Encoded Tapes; Playing dbx-Encoded Tapes

BRIEF OPERATING INSTRUCTIONS
To Play a dbx-Encoded Phonograph Disc
1. Set your preamplifier’s INPUT SELECTOR Switch to
PHONO, and the TAPE MONITOR Switch to TAPE.
2. Press the 128’s DISC, PLAY and POST Switches,
and set the COMPRESS/EXPAND Control to the ‘’1.0’
Position.
3. Play the disc and adjust the preamplifier’s VOLUME
Control for the desired listening volume. If the volume is
considerably louder or quieter than normal, adjust the
128’s PLAY LEVEL MATCH Control.
To Make a dbx-Encoded Tape
1. Set your preamplifier’s INPUT SELECTOR Switch
to the appropriate source (i.e. PHONO, TUNER or AUX),
and the TAPE MONITOR Switch to TAPE.
2. Press the 128’s TAPE, REC and POST Switches, and
set the COMPRESS/E XPAND Control to the ‘1.0’
Position, Do not switch the 128 while recording.
3. With your tape machine in the Record Ready (Pause)
mode, set recording levels for peaks typically 3 to 6 VU
lower than the levels normally used. (With dbx processing,
significantly lower recording levels are often required to
avoid tape saturation, particularly in cassette recording.
Experiment during the initial setup to find the appropriate
levels.)
To Play a dbx-Encoded Tape
1. Set your preamplifier’s TAPE MONITOR Switch to
TAPE.
2. Press the 128’s TAPE, PLAY and PRE Switches,
and set the COMPRESS/EXPAND Control to the ‘1.0’
position.
3. Play the tape. If the volume is considerably louder
or quieter than normal, adjust the 128’s PLAY LEVEL
MATCHControl.
Fig. 3 — Basic Hook-Up Diagram