Bryston BP6P - Manual (Page 5)

BP6 Preamplifiers
INTRODUCTION
Thank you for choosing a Bryston Preamplifier. Bryston
welcomes any suggestions you may have, or comments
regarding the operation of your amplifier. We consider you,
our customer, to be Bryston’s most important resource,
and your opinion is very much appreciated.
There are three different variations of the BP6 preamp:
● BP6 this is the base model
● BP6DA includes a D/A converter with an SPDIF input
● BP6P includes Bryston’s discrete moving-magnet
phono equalization stage
N.B. We recommend that you keep all original packing materials in the event
that your Bryston preamp may need to be returned for servicing. Any of the
original packaging materials that Bryston needs to supply in order to safely return
serviced equipment may be chargeable.
SETUP
Bryston BP6 pre-amps with the remote-control option,
should be placed where there is a direct line-of-sight
between the hand-held remote and the remote infra-red
sensor eye located on the left side of the pre-amplifier’s
front panel.
If you purchased the BP6P, which includes a Phono
section, avoid placing the preamplifier directly on top of
your power amplifier. Power amplifiers usually employ
large power supplies and the transformers) in the power
supplies can cause interference (hum) with the sensitive
phono section inside the pre-amp.
ANALOG AUDIO CONNECTIONS to OTHER
EQUIPMENT
All inputs and outputs employ fully discrete active circuitry
and all input and output connectors have gold plated con-
tact surfaces. Only cables with high quality gold plated
connectors should be used with your pre-amp to avoid
noise and distortion from the corrosion that will eventually
appear on poorly plated cable connectors.
Connect the pre-amplifier’s left and right outputs to the
appropriate left and right input jacks on your power ampli-
fier. Connect your CD player, tuner, tape deck, video
recorder, or laser disc, etc. to the specific left/right pre-
amplifier inputs. With the phono stage equipped model
(BP6P) connect your phono cables to the phono input
jacks. If your turntable leads have a separate ground wire,
it may be connected to the ground post adjacent to the
phono inputs on the rear panel.
The tape loop may be used to insert a surround sound
processor, cassette tape deck or video tape recorder into
your system. Plug your tape deck or external processor’s
input cables into the “To Tape” jacks, and the processor or
deck’s output cables into the “From Tape” jacks at the rear
of the pre-amp. The tape or processor loop may be oper-
ated via the “Tape/normal” toggle switch located on the
front panel of the preamplifier.
HEADPHONE JACK
A quarter inch stereo (3 conductor) headphone jack is locat-
ede on the front panel of all BP6 pre-amps. We recommend
the use of headphones with input impedances between
50 ohms and 600 ohms. Headphones with an impedance
above 600 ohms may experience some problems attaining
sufficient volume levels. The main outputs will be muted
when a phone plug is inserted into the headphone jack.
TAPE outputs are not muted. You can adjust the volume
setting of the headphones by using the volume control on
the front of the BP6 or by utilizing the remote control if your
unit is so equipped. The headphones cannot be muted with
the remote control unit. Use caution when disconnecting the
headphones as the loudspeakers will be immediately re-
connected at the volume level indicated by the front panel
volume control.
ANALOG AUDIO INPUTS
BP6 preamplifiers are equipped with 4 pairs of RCA input
connectors and one pair of RCA tape input jacks. All RCA
jacks are gold plated. Input sensitivity is 500mV and input
impedance is 50K ohms. See also PHONO EQUALIZATION
MODULES for Phono input details.
ANALOG AUDIO OUTPUTS
There are two pairs of parallel RCA main outputs and one
pair of RCA tape output jacks. They are capable of driving
up to 15 volts into any load of 600 ohms or greater.
TAPE LOOP
Tape Outputs: The “TO TAPE” outputs are selected
by the rotary ‘SELECTOR” knob and are provided as a
recording output. This feed is unaffected by the operation
of other front panel controls.
Tape Inputs: The “FROM TAPE” (unbalanced RCA)
inputs are useful for monitoring tape playback or pro-
cessed signals. Moving the “Tape/Normal” toggle to Tape’
(up) position monitors the recorded signal on recorders
equipped with a separate playback head, or the processed
signal when using a signal processor. Input sensitivity is
500mv, input impedance is 10K ohms.
REMOTE CONTROL (optional)
The BP6 preamplifiers are available with
an optional hand held infra-red remote
control unit with the following functions:
VOLUME is remotely controlled via the
▲ (up) and ▼ (down) arrow buttons. A
motorized volume control ensures the
lowest distortion with maximum long term
reliability. It is also manually accessible on
the front panel.
MUTE attenuates the main outputs of
the preamplifier, but not the tape outputs
(labeled “To Tape”).
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