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SP2 PREAMP/PROCESSOR
resents different mixing coefficients for the centre
and surround channel signals.
These will be detected by the SP2 and used to pro-
duce the downmix if this mode is selected.
12: “THX” BUTTON
THX
This button allows selection of THX post pro-
cessing modes. The default mode, which is
normally Surround-EX, can be selected using
the “EX Control” menu. See Appendix B for
more Information about THX post processing
THX listening modes:
Cinema: re-equalization, timbre matching &
adaptive decorrelation. (only available
with speaker systems of 6.1 of less)
Surround EX: re-equalization, timbre matching &
surround EX (Only available with 6.1 or
7.1 speaker systems, automatically engaged
if input bitstream is a Surround-EX encoded
bitstream)
THX Ultra2 Cinema: re-equalization, timbre
matched matched Speaker Array
(Only available with 7.1 speaker systems)
Music: timbre matching & adaptive decor-
relation (for use with Music source material
with speaker systems of 6.1 or less)
THX Music Mode: timbre matching, adaptive
decorrelation & Advanced Speaker
Array (For use with Music source material
with 7.1 speaker systems)
Games Timbre matching & advanced
Speaker Array (for use with 2.0 and 5.1
Video Game material. Only available with 7,1
speaker systems)
NOTES:
1) Timbre matching is used across all THX listen-
ing modes.
2) Re-equalization is applied for both THX Cinema
& THX Ultra2 Cinema listening modes
3) Advanced Speaker Array is applied for both
THX Ultra2 Cinema & THX Music Mode listening
modes
13: MODE BUTTON:
MODE
This button is used to select one of 13
effects for synthesizing surround sound
with 2 channel source material. Pressing
the button repeatedly will scroll through
the modes:
Available with Surround Listening Mode:
PLII Film Hall
PLII Music Stadium
Pro Logic Club
NEO:6 Cinema Party
NEO:6 Music Theatre
Stereo5 Natural
Church
You can select a Surround Mode for the Surround
or THX listening modes at any time, even if the
effect is not immediately active (such as the case
when a 5.1 channel bitstream is present). Two
Surround Mode settings are memorized for each
input – one associated with the Surround listening
mode, and one associated with the THX listening
mode.
14: BYPASS BUTTON
BYPASS
This button operates as a three way toggle
function. The LED immediately above the
button has two colors - RED and GREEN,
and an OFF mode where it is not illuminat-
ed. The options are Bypass 2ch, Bypass
5.1ch, and Bypass Off.
Press the button once, and the unit goes in the
Bypass 2ch mode. In this mode, the LED will be
GREEN. In Bypass 2ch mode all of the DSP cir-
cuitry, DA and AD converters are bypassed, allow-
ing a completely analog circuit path, identical to
the reference standard Bryston BP26 pre-amplifier.
Only standard format Stereo operation is permitted
in this mode - all other functions are disabled. The
Front Panel Stereo Balance control now becomes
active.
Press the button again, and the unit goes into
Bypass 5.1ch mode. In this mode, the LED will be
ORANGE. In Bypass 5.1ch mode, the signal from
the 5.1 channel analog inputs (RCA) will be routed
through the volume controls and to their respective
outputs, balanced and unbalanced. No bass man-
agement is available with the 5.1ch bypass mode.
To defeat the Bypass mode, press the Bypass
button again, and the LED will go OFF.
15: ANALOG BALANCE CONTROL
This control governs the balance of the analog
bypass circuit. It will only function if the SP2 is in
Bypass 2ch mode.
16: MASTER VOLUME CONTROL
This is the Large Knob located on the far right side
of the front panel. It controls the Master Volume
in all modes. It is fully motorized and can be
operated from the remote control or by hand. It
is the final level setting control on the SP2, and
determines what output level will be supplied to
the connected power amplifiers, but not the tape/
recording outputs. It takes into account any speak-
er level trim adjustments made during the SP2’s
setup.
REAR PANEL INPUT & OUTPUT
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