Wired Rs232 Remote Control; Bypass Mode; Digital-To-Analog Converter Option; Specifications - Bryston BP17 Owner's Manual

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WIRED RS-232 REMOTE CONTROL
Using the DB9 female connector at the rear of the unit,
the BP17 can receive commands via a null modem
cable at 9600 baud, 8 data bits, no parity and 1 stop bit
(9600,8,N,1). Valid commands will return the ">" charac-
ter indicating that the unit is ready to receive a new com-
mand. An invalid command will return the "!" character.
These serial data commands are as follows:

BYPASS MODE

BYPASS mode (also referred to as Pass Through mode)
sets the pre-amp gain to 1 (unity gain) and locks out the
volume & balance controls for any single analog audio
source. For example, if the Front Left and Front Right out-
puts of a home theater surround sound processer were
connected to the TV input of the BP17, and then BYPASS
was engaged then wherever TV input is selected the vol-
ume and balance controls would be locked at unity gain. If
other inputs were subsequently selected, volume and bal-
ance controls return to normal operation for those other
input sources. Only the TV inputs would be locked at unity
gain. BYPASS mode, therefore, can only be assigned to
one input at a time, but that input can be any one of the
analog audio inputs. BYPASS mode can only be set (or
reset) by sending the 3 digit code "245" to the BP17 either
from the handheld IR remote control or via the RS-232
serial data input. See "Sending Codes to the BP17 via the
IR Handheld Remote Control" & "Wired RS-232 Remote
Control". To reassign BYPASS mode to a different input
source simply select the desired input and re-send the
"245" code to the BP17. To turn the deactivate BYPASS
mode, select the current BYPASS input and then send
the "245" code to the BP17. The "245" toggles BYPASS
mode on and off.
D/A CONVERTER OPTION
The BP17-DA comes equipped with stereo Digital-to-
Analog converter (D/A or DAC) module. This module is
also retrofittable to standard BP17 units.
A unique feature of the BP17-DA is its ability to utilize
up to four independent digital sources (two SPDIF and
two TOSLINK). These four digital inputs can be ac-
cessed by selecting D1, D2, D3 and D4 sources with the
DAC feature enabled (by pressing the DIGITAL4Sel-
ect button on the left end of the front panel).
Activate the DAC feature by pressing the DIGI-
TAL4Select (AUX 2) button on the left side of the
front panel (or A/D on the remote). The LED below the
DIGITAL4Select button will turn Green. Pressing any
of the following four buttons will cause their LEDs to
light green, as well, to indicate a PCM digital source is
present and connected properly.
• SPDIF 1 is accessed by selecting D1 on the front
panel or the remote.
• SPDIF 2 is accessed by selecting D2 on the front
panel or the remote.
• Optical 1 is accessed by selecting D3 on the front
panel or the remote.
• Optical 2 is accessed by selecting D4 on the front
panel or the remote.
The source LED's will turn GREEN when a PCM digital
bit stream is present. If there is no bit stream available
or an incorrect bit stream (non-PCM) the LED will turn
RED.
You may re-select Analog by simply depressing the
DIGITAL4Select (AUX 2) button once more and the
LED will extinguish.
All of the above functions are available from the hand
held remote control as well .
MOVING-MAGNET PHONO OPTION:
The BP17-P contains a moving magnet phono stage.
The Phono Stage is modular and can be added to the
standard BP17 model later if required by your Bryston
dealer.
Bryston's MM Phono section features state-of-the-
art accuracy in equalization, extremely low noise and
distortion, and provides headroom margins sufficient
to prevent overload from any known phono source. To
access the Phono section simply plug your left/right
turntable interconnect leads into the left/right AUX-
1/PHONO inputs on the rear panel of the BP17 and
press the AUX-1/PHONO button on the front panel.
The AUX-1/PHONO LED will turn green. If your turn-
table provides a separate ground lead, system noise
may be minimized by connecting it to the ground lug in
the center of the rear panel.
BP17 SPECIFICATIONS:
Frequency response:
20Hz to 20KHz, ±.05dB
IMD or THD:
<.005%
High Level Sensitivity:
500mV
Noise:
-95dB @ 20Hz to 20KHz (ref: 1V input)
Weight:
16 lbs (7.3Kg) with packaging, 11 lbs w/o
Dimensions:
17" or 19" wide X 4.55" high x 14" deep
433mm or 483mm X 116mm X 353mm)
with packaging approx. 16 lbs (7.3kg.)
Weight:
without packaging approx. 11 lbs (5kg)

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