Adcom GTP-860 Owner's Manual page 10

switching is independent of the composite/S video signal
and does not support on-screen display messages.
ext 5.1: Selects the multi-channel output signal from
a DVD player or external decoder source (such as DVD-
Audio) connected to the ext 5.1 input as the active input.
NOTE: No ext 5.1 audio signal is available from the headphones
socket, or the Tape, Video 3 or Video 4 outputs.
Tape Monitor: Selects the output from a tape recorder
when playing back tapes or monitoring recordings being
made through the Tape sockets. Press the Tape Monitor
button once to select it and again to return to the normal
input selection.
The Tape Monitor function does not override the current
input selection that is sent to the tape outputs. When the
Tape Monitor is selected, you are listening to the signal
that is coming back into the Tape Input jacks. The cur-
rently selected source is still being sent to the Tape Out
where it can be recorded. This function enables you to
check on a recording that you are making without affect-
ing the recording process. When Tape Monitor is selected,
the button will remain lit until Tape Monitor is
disengaged again.
[ 12 ] Surround Mode Button
With the Surround Mode button the available surround
sound modes can be selected. The selected surround
mode is permanently indicated in the display area and is
also shown for 3 seconds in the large text section of the
display. The Surround Mode button scrolls through the
available surround sound modes when pressed repeatedly.
The surround modes are:
Stereo: The Stereo mode provides straight two channel
listening. With an analog source, it bypasses all process-
ing. With a digital input, only the bass-management
filtering is applied.
Hall: In the Hall Surround mode, a realistic level of
ambiance is added to a normal stereo source such as a
CD or FM radio.
Pro Logic II: Dolby Pro Logic II is the new advanced ver-
sion of Prologic, Dolby's original surround matrix with cen-
ter channel output. Prologic II has enhanced imaging and
wider bandwidth surround signals than original Pro Logic.
10 | ADCOM GTP-860 OWNER'S MANUAL
Dolby Pro logic II is intended for use with most movies and
television programs that are designed to be listened to
using Prologic decoding. In addition to the standard Dolby
Prologic II, the GTP-860 supports three enhanced versions
of Prologic II processing, which were designed for specific
types of programs. "Prologic II Music" mode was designed
for use with regular old stereo recordings and it can utilize
all you speakers in your system when listening to a CD.
"Prologic II Movie" is an enhanced version of Prologic II
decoding with settings optimized for movies and televi-
sion. "Prologic II Panorama" is a version of Prologic II that
is intended for use with Movie playback that spreads the
images from the front left and right speakers around to the
surround speakers. "Prologic II Matrix" creates a surround
sound signal from mono sources.
5 ch Stereo: This mode is designed for use with stereo pro-
gram material. It is designed to get maximum output from
all your speakers. The rear speakers are driven with the
same signal as the front left and right, while the center
speaker is a monophonic summation of the front speakers.
With any of the Digital Inputs, the GTP-860 automatically
recognizes if the selected source carries a Dolby Digital™
or DTS™ signal. Dolby Digital and DTS have six indepen-
dent channels available in total: Left, Center, Right,
Surround Left, Surround Right and an "Effects Channel"
(Subwoofer). With either Dolby Digital 5.1 or DTS digi-
tal input, the Stereo, Dolby Pro Logic and Hall surround
modes cannot be selected.
The Dolby Digital signal allows for several channel
configurations. Most two-channel Dolby Digital recordings
will allow the Pro Logic listening mode to be applied.
[ 13 ] Bass/Treble Controls
The GTP-860 is fitted with Bass and Treble tone controls
to adjust the overall tonality of your system. The 12
o'clock position is 'flat' with no boost or cut and a
detent indicates this position.
Rotate the control clockwise to increase the amount of
Bass or Treble. Rotate the control counter-clockwise to
decrease the amount of Bass or Treble. These controls
affect the Left and Right Front channels. The Tone
controls do not affect recordings made using the Tape or
Video line outputs.