BP26
OWNER’S MANUAL
IMPORTANT SAFETY INSTRUCTIONS
The lightning flash with arrowhead symbol within an equilateral triangle, is intended to alert the user to the presence of un-insulated
“dangerous voltage “ within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to
persons.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance
(servicing) instructions in the literature accompanying the product.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Read these instructions.
Keep these instructions.
Heed all warnings.
Follow all instructions.
Do not use this apparatus near water.
Clean only with dry cloth.
Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A
grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the
apparatus.
11. Only use attachments/accessories specified by the manufacturer.
12. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is
used use caution when moving the cart/apparatus combination to avoid injury from tip-over.
13. Unplug this apparatus during lightning storms or when unused for long periods of time.
14. Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as powersupply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or
moisture, does not operate normally, or has been dropped.
WARNING: TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE.
DO NOT EXPOSE THIS EQUIPMENT TO DRIPPING OR SPLASHING AND ENSURE THAT NO OBJECTS FILLED WITH LIQUIDS, SUCH AS VASES, ARE
PLACED ON THE EQUIPMENT.
TO COMPLETELY DISCONNECT THIS EQUIPMENT FROM THE AC MAINS, DISCONNECT THE POWER SUPPLY CORD PLUG FROM THE AC
RECEPTACLE.
THE MAINS PLUG OF THE POWER SUPPLY CORD SHALL REMAIN READILY OPERABLE.
BRYSTON LIMITED WARRANTY
Bryston analog audio products are warranted to be free from manufacturing defects for twenty (20) years from the original date of manufacture. The
warranty includes parts and labour.
Bryston Digital products and cables are warranted for five years from the original date of manufacture. The warranty includes parts and labour.
Bryston products having motorized moving parts, excluding motorized volume controls, are warranted for three years from the original date of manufacture. The warranty includes parts and labour.
Bryston will remedy the problem by repair or replacement, as we deem necessary, to restore the product to full performance. Bryston will pay shipping costs one way (usually the return portion) during the first three years of warranty coverage.
In the event of a defect or malfunction, contact Bryston’s repair centers for return authorization. Products must be returned using original packaging
material only. Packing material may be purchased from Bryston if necessary. This warranty is considered void if the defect, malfunction or failure of the
product or any component part was caused by damage (not resulting from a defect or malfunction) or abuse while in the possession of the customer.
Tampering by persons other than factory authorized service personnel or failure to fully comply with Bryston operating instructions voids the warranty.
This warranty gives you specific legal rights and you may also have other rights which may vary from province to province and country to country.
As of 2006-02-22 Bryston will only warranty Bryston products purchased through authorized Bryston dealers. Bryston products with a date code
of 0608 or higher (date code format is “yyww”, where “yy” is the two least significant digits of the year and “ww” is the week of the year) must be
accompanied by a copy of the bill-of-sale from a Bryston authorized dealer to qualify for warranty service. The warranty is transferable from the original
owner to a subsequent owner as long as a copy of the bill-of-sale from the original authorized Bryston dealer accompanies the re-sale. The copy of the
bill of sale to any subsequent owner need ONLY include the Name of the Bryston Authorized Dealer and the Model and Serial number of the Bryston
product The warranty will only be honored in the country of the original purchase unless otherwise pre-authorized by Bryston.
BRYSTON SERVICE in CANADA:
BRYSTON SERVICE in the USA:
BRYSTON SERVICE outside Canada and the USA:
Postal address: P.O. BOX 2170, Stn. Main
PETERBOROUGH, ONTARIO
CANADA K9J 7Y4
Courier address: 677 NEAL DRIVE
PETERBOROUGH, ONTARIO
CANADA K9J 6X7
79 COVENTRY ST., Suite 5
NEWPORT, VERMONT
U.S.A. 05855-2100
contact your local distributor or
PHONE:
FAX:
E-mail:
705-742-5325
705-742-0882
cdnser@bryston.com
PHONE:
FAX: E-mail:
802-334-1201
802-334-6658
usaser@bryston.com
CHECK OUR WEB SITE:
E-MAIL BRYSTON DIRECTLY:
FAX BRYSTON DIRECTLY:
PHONE BRYSTON DIRECTLY:
www.bryston.com
cdnser@bryston.com
01-705-742-0882
01-705-742-5325
BP26 PREAMPLIFIER
TABLE of CONTENTS
Safety Instructions, Warranty and Contact Information ............Opposite
Technical Specifications................................................................ Page 1
General Information.................................................................. Page 2
Introduction
Setup
Analog Audio Input & Output Connections
Headphone Jack
Tape Loop........................................................................ Page 3
Remote Control (optional)
Phono Equalization Modules (optional)
Digital Audio Input Module (optional)
LED visual indicators
Front Panel Controls..................................................................... Page 4
Mute Switch
Polarity Switch
Volume Control
Balance Control
Source Selector Switch
Mono/Stereo Switch
MC/MM Phono Select Switch
DAC-1/DAC-2 Select Switch
Tape/Source Switch
Front & Rear Panels Illustration .................................................. Back Page
BP26MM with 17” Black Dress Panel.
See back page for other model variations
GENERAL SPECIFICATIONS:
ADDITIONAL SPECIFICATIONS FOR BP26DA:
Frequency Response:
20Hz-20kHz +/- .05dB
Input Sample Rate:
16kHz to 108kHz.
Word Length:
16, 18, 20, 24 Bit
Maximum Output:
15 volts unbalanced, 30 volts balanced
Data format:
SPDIF standard
Distortion:
< 0.002%, 20Hz-20kHz
Signal to Noise Ratio:
> 100dB
Frequency Response:
20Hz-20kHz +/- .1dB
IMD/THD:
<0.0015% at 3 volts out
Sensitivity:
Balanced inputs:
UnBalanced line level inputs:
1.00 V
500 mV
Rated Noise:
-100dB (Ref. 500mV unbalanced input, 20-20kHz)
-103dB (Ref. 1 volt balanced input 20-20kHz)
ADDITIONAL SPECIFICATIONS FOR BP26P:
Phono Inputs:
Distortion:
<
0.005%, IM or THD, any frequency
or combination of frequencies from
20-20kHz, at rated output or below.
XLR Connector Pin out (Balanced I/O):
Pin 1 ground, pin 2 positive, pin 3 negative
Rated Noise: P
hono: -80dBA referred to an input of 5
millivolts RMS @ 1kHz
Features:
 2 pair balanced female XLR inputs
 1 pair balanced male XLR outputs
 5 pair RCA inputs
4 pair RCA + 1 pair phono inputs (BP26P & BP26MC only)
 4 pair RCA + 2 SPDIF digital inputs (BP26 DA only)
 2 pair RCA outputs
 1 tape loop
20-20kHz inclusive
Input sensitivity: 5mV
Options:
 Silver faceplate & hand held remote (std. is black)
 19” x 1.75” Rack mount faceplate (std. 17” long)
 Moving magnet RIAA phono equalization module
 Moving coil & moving magnet RIAA phono EQ
module
 Digital audio input (SPDIF) module
Dimensions:
Standard version:
Rack mount version:
17” (or 19”) x 2.25” x 11”
43.18cm x 5.7cm x 28cm
19” x 1.75” x 11”
48.26cm x 4.44cm x 28cm
Weight:
actual:
12.4 lb. (5.62Kg)
shipping: 16 lb. (7.25Kg)
RIAA Accuracy: Within less than +/- 0.05dB from
ADDITIONAL SPECIFICATIONS FOR BP26MC
Phono Inputs:
Distortion: <
0.005%, 20-20kHz, with preamplifier driven
to full rated output
Noise:
Equivalent to approximately 1000 ohm metal
film register (Thermal noise greater than 85dB
below 0.6mV input, unweighted)
Gain:
16.5 or 22.5dB (internally reconfigurable)
Frequency Response: B
elow 5Hz to above 30kHz, within less than +/- 0.5dB
Input sensitivity:
350uV (0.35mV)
SERIAL NUMBER, DATE CODE, ELECTRICAL RATINGS
ATTENTION: To obtain the model number and serial
number of this product please refer to the label attached
to the bottom cover.
This label also contains electrical ratings and the date
code (date of manufacture). The date code is a 4 digit
code wherein the first 2 digits are the two least significant
digits of the year (e.g. “05” means the year 2005) and the
last two digits are the week of the year (numbered from
01 to 52)
Although all of the above specifications can be met regardless of whether the BP26 preamplifier is positioned immediately above or below the MPS2 power supply, optimum performance will be achieved when the power supply is positioned above the preamplifier.
BP26 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.
SETUP
The Bryston BP26 pre-amps, with remote-control,
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 BP26P or BP26MC, both of
which include 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.
Next, insert the 6-pin XLR cable from the outboard
power supply into the “Power Supply” input connector
(6 pin XLR) located on the rear of the preamplifier. Then
plug the power supply into an appropriate AC power
outlet. The preamplifier is powered up turning on the
MPS2 Power Supply via its Power switch ~ a toggle
switch located on the front of the MPS2 external power
supply. The “green” LED on the outboard power supply
and the preamplifier front panel indicates power-on.
MPS2 POWER SUPPLY
The BP26 preamp is powered by the MPS2 power
supply. Please refer to the MPS2 POWER SUPPLY
OWNERS MANUAL for more information.
A power supply cable, for the sole purpose of connecting the BP26 preamp to the MPS2 power supply, is
supplied with your BP26 preamp. Do not dissassemble
or attempt to modify this cable in any way as it may be
unsafe to do so.
WARNING! Main output 1, 2, 3 & 4 connector terminals on the MPS2 Power Supply rear panel are
HAZARDOUS LIVE and present a risk of electric
shock. Use only preassembled power interconnect
cables provided by Bryston for connection of these
terminals.
ANALOG AUDIO CONNECTIONS TO OTHER EQUIPMENT
All inputs and outputs employ fully discrete active circuitry and all input and output connectors have gold
plated contact surfaces. Only cables with high quality
gold plated connectors should be used with your preamp 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 from either
the RCA or Balanced XLR connectors to the appropriate
left and right input jacks on your power amplifier. Balanced
cables are an advantage if you are using long runs of cable,
(greater than 10 feet), between your preamplifier and power
amplifier. Connect your CD player, tuner, tape deck, video
recorder, or laser disc, etc. to the specific left/right preamplifier inputs. With phono stage equipped models, (BP26P &
BP26MC) 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 Bryston BP26 pre-amps also feature two pairs of balanced XLR input jacks. Many signal sources, including
CD-players and separate D/A converters are now available
with Balanced outputs for minimum noise pickup on the
cables.
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 operated via the “Tape/Source” toggle switch located on the front
panel of the preamplifier.
HEADPHONE OUTPUT
It is recommended that you use headphones with an
impedance of greater than 50 ohms for optimal performance. The main outputs, both balanced and single-ended, will be muted when a phone plug is inserted into the
headphone jack (TAPE outputs are not muted). The front
panel indicator LED will not turn red, however, as is does
when the outputs are muted via the MUTE toggle switch or
the hand held remote control.
ANALOG AUDIO INPUTS
BP26 preamplifiers are equipped with five pairs of RCA input
connectors: two pairs of balanced XLR input connectors,
and one pair of RCA tape input jacks.
Balanced inputs use 3 pin XLR female connectors with pin
1 being ground, pin 2 as positive signal, and pin 3 as negative signal. Input sensitivity is 1 volt and input impedance is
15K ohms.
Single-ended (or unbalanced) inputs employ gold plated
RCA (Phono) jacks. Line 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. One pair of balanced outputs,
using 3 pin male XLR jacks, are also provided.
Balanced Outputs: As with the input XLR jacks, pin 1 is
ground, pin 2 is positive and pin 3 is negative. These outputs
are capable of driving 30 volts into any load of 600 ohms or
greater. Do not short any of these three pins together!
Single-ended or unbalanced outputs: As with unbalanced inputs, these connectors are gold plated RCA
(phono) jacks. They are capable of driving 15 volts into any
load of 600 ohms or greater.
TAPE LOOP
Tape Outputs: The “TO TAPE” outputs are selected by
the rotary ‘SOURCE” 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 processed signals. Moving the “Tape/Source” 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.
OPTIONAL REMOTE CONTROL
The VOLUME, MUTE & output PHASE
of the Bryston BP26 preamplifier
can be remotely controlled with the
BR2 multi-model hand held infra-red
remote control. This remote features
a backlit panel and a solid machined
aluminum enclosure and buttons.
Volume is remotely controlled
via the ▲ (up) and ▼ (down) arrow
buttons. A motorized volume control
ensures the lowest distortion with
maximum long term reliability. Volume
is also manually adjustable from the
front panel.
The Phase button (or the
“Polarity/Invert” toggle switch on the
front panel) allows you to invert the
absolute phase of the audio signal (not
to be confused with the left-versusright channel phase), because polarity
reversal can occur in the recording
chain. It is desirable to maintain absolute phase as originally played in the
recording hall as that will provide the
most accurate representation of the
original wave front. This may be audible in some cases as a
more realistic rendition of musical transients when the preamplifiers maintain non-inverting polarity at the Main output
for all inputs when the pilot light (or status LED) is green.
The polarity is inverted when the status LED is yellow. The
“To Tape” outputs are always non-inverted.
The Mute button mutes the main outputs (both balanced and unbalanced) of the preamplifier, but not the tape
outputs (labeled “To Tape”). Refer also to the Power Supply
section earlier in this manual for information regarding
remote amplifier control (on/off) via the mute switch.
PHONO EQUALIZATION MODULES (OPTIONAL):
Bryston’s optional phono equalizer circuitry features highly
accurate equalization, extremely low noise and distortion and provides headroom margins sufficient to prevent
overload from any known phono source. If your turntable
provides a separate ground lead system noise may be minimized by connecting it to the ground post adjacent to the
phono inputs on the rear panel.
Moving Magnet Phono Cartridge Input (MM):
This is Bryston’s standard RIAA phono equalization stage. It
is found in both the “-P” and “-MC” versions of the BP26 preamp. Input impedance is 50K ohms and sensitivity is 5mV.
Moving Coil Phono Cartridge Input (MC):
Moving coil phono cartridges require much more gain than
the more common moving magnet types. To accommodate
moving coil cartridges Bryston offers the BP26MC pre-amp
which include specially designed, custom made step-up
transformers in addition to Bryston’s standard RIAA phono
equalization stage found in the “-P” versions of the BP26
pre-amp. Which phono equalization stages are engaged
is determined by the front panel toggle switch labeled “MC
Phono / MM Phono”. This switch is not present on the
BP26P model; it is replaced, instead with a “Mono / Stereo”
switch. Please note that it is important that your phono cartridge is connected to the correct inputs in order to achieve
proper performance.
Input impedance is 180 ohms and sensitivity is 350uV
DIGITAL AUDIO INPUT MODULE (OPTIONAL):
The BP26DA model contains two SPDIF compatible digital
audio inputs. To select either the DAC-1 or DAC-2 digital
audio input, first set the rotary SOURCE selector to DAC,
and then select between the two SPDIF inputs with the
DAC-1/ DAC-2 toggle switch. The digital-to-analog convertor can handle input sample rates from 16KHz to 108KHz,
and word lengths of 16, 18, 20 or 24 bits.
VISUAL INDICATORS:
MPS2 Power Supply: The LED on the front panel of the
MPS2 lights GREEN when power is on.
BP26 Preamp: The three colour LED (light emitting
diode) located on the front panel lights RED when the
output is muted, GREEN when the output signal is noninverting polarity and YELLOW when the output signal is
BP26 PREAMPLIFIERS
inverted with respect to the input. When the LED is unlighted, the power is off.
FRONT PANEL CONTROLS:
MUTE/NORMAL TOGGLE SWITCH: Mutes or releases
mute at the main outputs, (not ‘To Tape’ outputs), without
changing the volume control setting, each time pushed.
POLARITY/INVERT TOGGLE SWITCH: Reverses polarity at main outputs each time pushed. (GREEN LED indicates positive polarity, YELLOW LED indicates inverse
polarity).
VOLUME CONTROL: Rotary control varies the output
level to the ‘MAIN OUTPUTS’, (does not effect ‘TO TAPE’
outputs). BALANCE: Rotary control adjusts the left-versusright channel levels.
BALANCE CONTROL: is a tailored-inflection type which
has very gradual action near the center of rotation allowing fine adjustments to the stereo image. For convenience
the electrical center of the control is detented.
SOURCE SELECT SWITCH: Rotary switch determines
which input will appear at the “TO TAPE” outputs for
recording or processing, as well as determining which program is available at the Main outputs. (When the “TAPE/
SOURCE” switch is in “Tape” position, “FROM TAPE”
inputs appear at Main Outputs).
MONO/STEREO SWITCH: “Stereo” position provides
two-channel stereo at the Main outputs. ‘Mono’ position
sums the main outputs to monaural. The ‘TO TAPE’ outputs are always stereo. (Switch not present on “-MC” or
“-DA” models).
MC/MM PHONO SWITCH: This switch is present on the
BP26MC models only. It allows the selection of either
Moving-Magnet or Moving-Coil phono equalization. This
switch takes the place of the “Mono/Stereo” toggle switch
on other BP26 models.
DAC-1/DAC-2 TOGGLE SWITCH: Only on BP26DA models, this switch determines which of the two SPDIF digital
audio inputs is processed and then sent to the tape and
main outputs. The SOURCE select switch must also be in
the “DAC” position to monitor the digital audio inputs.
TAPE/SOURCE SWITCH: “Source” position monitors
whichever input is selected at the rotary SOURCE selector rotary switch. “Tape” position provides monitoring of the
“FROM TAPE” input for A/B comparison with the source.
Should an external processor or equalizer be connected in
the tape loop, the ‘TAPE / SOURCE” switch will act as an
in/out switch for the external equipment.
300 018-2
Bryston Ltd., Peterborough, Ontario, Canada
2010-07-26