BRYSTON 9B3 Owner’s Manual

9B3 Amplifier

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. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the

manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or

other apparatus (including amplifiers) that produce heat.

9. 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. Caution: unit weighs in excess of 65 lbs / 29.5 kgs. Please always use two persons
to lift and carry the device.

13. 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.

14. Any terminals marked with the preceding symbol are HAZARDOUS

LIVE and any wiring connected to these terminals must be installed
by an INSTRUCTED PERSON or with ready-made leads or cords.

15. Unplug this apparatus during lightning storms or when unused for long periods of

time.

16. Refer all servicing to qualified service personnel. Servicing is required when the

apparatus has been damaged in any way, such as power-supply 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. NO USER SERVICEABLE PARTS INSIDE

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 return shipping only for the full length of
the specific product's warranty.
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.

Table of Contents

Important Safety Instructions .................................... 2

General.........................................................................4

Installation and Usage ................................................4

Welcome ................................................................ 4

Description ............................................................4

Features ................................................................. 4

Shipping Box and Packing Material ...................... 4

Ventilation .............................................................4

Connecting to A/C Power ...................................... 4

Connecting to Loudspeakers ................................ 5

Balanced vs. Single Ended Input .......................... 5

Power Conditioners ..............................................5

External Control Voltage .......................................6

Front Panel ..................................................................7

Rear Panel .................................................................... 8

Network Connection ................................................. 10

Firmware Update.......................................................10

Remote Control .........................................................11

Serial Protocol ..................................................... 11

Command Format ............................................... 11

Remote Control .........................................................11

9B3 Specifications ......................................................15

Dimensions ................................................................ 15

BRYSTON SERVICE in CANADA: BRYSTON SERVICE in 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

PHONE: [phone]
FAX: [phone]
E-mail: [e-mail]

79 COVENTRY ST., Suite 5
NEWPORT, VERMONT
U.S.A. 05855-2100

PHONE: [phone]
FAX: [phone]
E-mail: [e-mail]

BRYSTON SERVICE outside Canada and the USA:

contact your local distributor or

CHECK OUR WEB SITE: www.bryston.com
E-MAIL BRYSTON DIRECTLY: [e-mail]
FAX BRYSTON DIRECTLY: 01-705-742-0882
PHONE BRYSTON DIRECTLY: 01-705-742-5325

9B3 Amplifier

General

Welcome

Thank you for your purchase of a Bryston 9B3
(Cubed) amplifier! Decades of ongoing research
and development have produced our highest
performing amplifiers yet. Our customers are
a tremendous resource to whom we look for a
measure of success. Please feel welcome to contact
us with feedback and suggestions.

Description

The 9B3 is modular multi-channel audio power
amplifier available in 3, 4, or 5 channel versions
with each channels capable of 200 watts. Robust yet
beautiful machined aluminum enclosures house
our proprietary industry-leading circuit designs
resulting in exemplary performance observed both
in the listening space and in the laboratory.

C-Series variants are available in your choice of 17
inch or 19 inch wide non-rack mountable aluminum
dress panels anodized in clear (silver toned) or
black. 19 wide C-Series amplifiers include front
handles. PRO amplifiers feature 19 inch wide rack
mountable dress panels with handles in a black
anodized front finish and also include individual
channel trims located on the rear panel. All versions
include rear panel handles.

Features

Bryston 9B3 includes the following features:

• Switchable gain: 23dB or 29dB

• Balanced XLR input. Pin 2 positive.

• Single ended (RCA) input.

• SoStart circuitry for managing inrush current
upon initial power up.

• Wired remote control AC/DC trigger input and
passthrough with supplied connector.

• Network connected control and information.

Shipping Box and Packing Material

Please keep the original shipping box and all
packing material. This will ensure the amplifier is
protected in future transport. In the unlikely event
you have a problem and must return it for service,

you must use the proper packing material. Ship
the amplifier only in the original packing material,
as the unit is not insurable by carriers otherwise.
Replacement packing materials consisting of a
shipping carton with plastic foam inserts is available
from Bryston for a small fee.

Installation and Usage

Ventilation

Bryston has deliberately chosen to omit fans from
our amplifiers in an eort to minimize the noise
level in your listening environment. Instead, we use
only passive heat sinks which are fully capable of
maintaining a safe operating temperature of the
amplifier even under loud playback conditions.
For them to work most eectively, air must be
permitted to pass freely through the heat sink fins
and around the amplifier. Maintain a minimum of

3.5 inches of space to each side, top and back of the
amplifier when in use. Do not stack the amplifiers
immediately on top of one another in an enclosed
cabinet. If you must stack the amps, you may need
to utilize fans or another active cooling mechanism
to ensure uninterrupted operation. If you repeatedly
experience channels shutting down due to heat,
rearrange the amplifiers to have more surrounding
free space, or employ an active cooling solution.

Never operate the amplifier in a vertical position.

Connecting to A/C Power

Please check the Data Plate on the rear of the
amplifier adjacent to power entry module to verify
power requirements agree with your location. See
“12. Data Plate:” on page 9. Before plugging
in the power cord, make sure the Master Circuit
Breaker (“7. Master Circuit Breaker:” on page 9)
is switched to the ‘ON’ position. Plug the IEC-320
C14 end of the power cord into the amplifier, then
plug the other end into an approved and grounded
A/C receptacle. The STATUS LED should flash green,
then switch to red indicating A/C power is present in
the unit. See “10. Power Status Indicator:” on page

9. The amplifier is now ready to be powered on.

Connecting to Loudspeakers

Connection to loudspeakers is accomplished by
attaching high quality speaker cable to the Output
Binding Posts (see “Rear Panel” on page 8) per
the following instructions.

The RED binding post is connected to the positive
channel output. Connect this post to the (+)
terminal on the loudspeaker.

The BLACK binding post is connected to the
negative output. Connect this post to the (-)
terminal on the loudspeaker.

Never connect either binding post to a ground!

The output binding posts provide three dierent
interconnect options. Combinations may be used
when bi-wiring. Cables should be kept as short
as practical and should never be terminated with
connectors that may become confused for AC
power connectors. Cables should be dressed away
from input and power cables.

Banana plugs oer a quick disconnect option.
Before inserting a banana plug into the binding
post, be sure to tighten the post nut to avoid rattling
and to provide full insertion of the banana plug.
Gold plated locking banana plugs are available from
Bryston.

Spade lugs provide high contact area and secure
fastening. Lugs should be gold plated. Post diameter
is 5/16” (8mm ), lug width 5/8” (16 mm). Gold plated
spade lugs are available from Bryston.

Stripped bare wire up to 3 gauge can be inserted
through the hole in the binding post and held
in place by tightening the post knob. Additional
tightening pressure can be achieved using a coin
in the slots of the knob. Do not over tighten or the
binding post may become damaged. Note that
copper wire is malleable and may require further
tightening aer the initial installation.

To prevent the risk of equipment damage or
personal harm, use only Class 2 rated loudspeaker

wire properly terminated and
connected securely to the
binding posts.

Connecting Audio Inputs

The Bryston Cubed amplifier can receive analog
audio from any preamp or surround processor with
volume controlled line-level outputs. Balanced
XLR as well as singled ended RCA inputs are both
available and can be selected using the Input Select
switch on the rear panel of the amplifier.

Balanced vs. Single Ended Input

The balanced input requires a balanced pre-amp
source. Balanced systems provide noise rejection
from external electrical interference, so cable
length can be very long—50 meters or longer. The
single ended or unbalanced input is provided for
pre-amps without balanced output. Single-ended
cables should be kept to 20 feet (6 meters) or less.
In general never use longer cables than necessary,
never coil excess cable length, and keep signal wires
away from AC power or speaker cables.

Power Conditioners

Bryston urges caution in choosing a power
conditioner for your audio/video system. Large
power amplifiers can draw very substantial current
from the wall plug, and many so-called power
conditioners can in fact hinder the supply of current
by inserting resistances in series with the line cord.
However, there are now power conditioners that
can reduce or eliminate RF and ‘hash’ from the AC
supply and may actually improve current delivery
to your system. This type of power conditioner
(exemplified by Bryston BIT products) uses the
energy storage in a large toroidal transformer to
provide high instantaneous power and reduce the
substantial AC output resistance of the wall socket
and house wiring. This resistance can be in the
range of 0.5 to 1 Ohm and is typically reduced to
only a few milliohms by the power conditioner.
That in turn considerably reduces voltage drop in
the power line on high current surges and quite
substantially increases the stability of the power line

4 5

improving audio (and video) focus, precision and
clarity.

External Control Voltage

To power-up the amplifier using an external control
voltage, supply a 5V to 12V (AC or DC) control
voltage to the ‘IN’ terminals of connector (fig. 1). Use
paired wire of 22 to 18 gauge between the source
device and the Bryston Cubed series amplifier. The
appropriate mating connector is a 1/8” tip-sleeve
style plug where tip is signal and sleeve is ground.

9B3 Amplifier

1

2

Set the External Turn-On switch to “External” See “9.
Remote Power Up:” on page 9. Place the front
panel switch in the ON position. The amplifier will
now power-up only when the control voltage is
present (on). Immediately following power-up, the
control voltage will appear at the ’OUT’ terminals
of connector for the control of other equipment.
The removal of the control voltage (0v) causes the
amplifier to turn ‘o’, and the control voltage at the
‘OUT’ terminals is interrupted.

In the “Local” setting of the External Turn-On switch
the amplifier will ignore the control voltage and
power up only by using the front panel push-button
power switch. If a control voltage is present at the
‘IN’ terminals, it will still be available at the ‘OUT’
terminals aer the power-up sequence.

Note:

The ‘OUT’ terminals are connected to the ‘IN’
terminals once the amplifier has powered-up.

The control current is determined by the source
equipment. The carrying current of the ‘OUT’ relay
is 2 amps.

The amplifier’s control circuitry itself draws less
than 2 mA from the control current when operating.

Front Panel

LED indicators, which are normally red/green,
may be red/blue instead. When red/blue LEDs are
supplied green is replaced with blue and orange is
replaced with magenta in the below descriptions.

1. Power/Standby Switch:

The front panel features a push-on/push-o
type latching power switch used to apply or
remove A/C line power to the SoStart circuitry.
Note that the rear circuit breaker must be on
for the amplifier to power-up. The front panel
button should be on to enable network control.

2. LED Indicator:

Each amplifier channel has a front panel LED
indicator to monitor the following conditions:

Unlit Amplifier not powered on (OFF

MODE)

Red Channel is muted during power

up or when channel is muted via
soware.

Green Channel operation is normal

Flashing

Orange Thermal protection mode

POWER UP SEQUENCE

Aer pushing the power switch, each channel
LED will turn from unlit to red (mute). When the
power supplies have stabilized, the channel will
come out of mute and the LED will change to
green (normal operation).

Channel is clipping. Reduce input

Red

level!

UNLIT LED (No power)

The amplifier channel LED when unlit indicates
no A/C mains power is present at the channel
power transformer. This usually indicates
that the amplifier probably needs only to be
powered on.

CLIPPING (flashing red)

Clipping occurs when the channel output level
no longer can follow the level increase at the
input (over driven input condition). When a
channel is driven into clipping, the channel
LED will change from green to red then back to
green when the level is reduced. Momentary
clipping can be tolerated, however it indicates
that maximum undistorted power has been
surpassed and potential speaker damage
may result if overload conditions persist. Any
amplifier that is constantly operated into
clipping indicates a more powerful amplifier is
needed for that application.

THERMAL SHUTDOWN (orange)

Each channel has thermal shutdown circuitry
to prevent damage due to overheating. Should
thermal shutdown occur, the channel will mute,
and the channel LED will turn orange. When
the channel has cooled to a safe operating
condition, the channel will return to normal
operation. Persistent thermal shutdown
indicates steps need to be taken to increase
airflow across the channel or channels heat sink.
See “Ventilation” on page 4.

6 7

9B3 Amplifier

89

2

1

3

10 11

7

Rear Panel

1. Input Select Switch:

Select either Balanced or Single Ended audio
input.

2. Balanced Audio Input:

Each channel has a balanced audio input. This
input connector accepts standard XLR (pin
1 = Ground, pin 2 = Positive, pin 3 = Negative).
Use quality, 100% shielded cables with gold
plated connectors.

3. Single Ended Audio Input:

Each channel has a single ended audio input.
This input connector accepts standard ‘RCA’ or
‘Phono’ connectors. Use quality, 100% shielded
cables with gold plated connectors.

4. Gain Select Switch:

The optimum gain setting will depend upon the
source pre-amp operating level, and or personal
preference.

The 29dB setting is used when the source is
single-ended or from a transformer coupled

2 3

14

positive amplifier output. Connect to this post
the (+) terminal on the loudspeaker.

locality. With the circuit breaker ‘ON’ insert the
power cord into the Cubed series amplifier, then
plug the other end to an appropriate A/C outlet.

The BLUE or BLACK binding post is connected to
the negative output. Connect to this post the (-)
terminal on the loudspeaker.

2

1

3

2

1

3

2

1

3

2

1

3

Never connect either binding post to an
electrical ground!

The output binding posts provide three dierent
interconnect options: banana plugs, spade lugs,
and bare wire. Combinations may be used when

9. Remote Power Up:

When in External position, the Power On state
is governed by voltage applied to IN terminals
of the Remote Power Up connector. The front
panel power switch must remain in the ‘ON’
position. “External Control Voltage” on page
6 for instructions regarding connection and
usage.

bi-wiring. Cables should be kept as short as
practical and should never be terminated with
connectors that may become confused for AC
power connectors. Cables should be dressed
away from input and power cables.

10. Power Status Indicator:

Plugging in the power cord applies power to
the amplifier. The status indicator will initially
flash green. The number of flashes indicates the
revision of the so start circuit soware. This

5 6

balanced source. This is the typical for single
ended or un-balanced operation. The 29dB
setting provides the most amplifier gain and
equates to 100w @ 8 ohms output for a 1V input
(noise -115 dB).

The 23dB setting is used when the source
output is actively balanced. This is the typical
setting for balanced operation. Or use this
setting whenever less gain is required. The 23dB
setting equates to an output of 100w @ 8 ohms
for 2V input.

The noise is referenced in dB below rated
output. Dierent input configurations result
in slightly dierent noise readings. The above
noise ratings represent minimum readings.
Actual readings may be better.

5. Channel Level Attenuator (PRO
ONLY):

The level control will attenuate the input signal
level from 0dB through -14dB.

6. Output Binding Posts:

The RED binding post is connected to the

Only use Class 2 Rated Wiring. No other wiring is
permitted for use.

7. Master Circuit Breaker:

The Cubed series amplifier uses a magnetic­trip circuit breaker to protect the amplifier.
This breaker is not an on o switch and must
be in the ‘ON’ position during the installation
and normal operation. Use the front panel
push-button power switch or an external
control voltage to power-up or power-down
the amplifier. Should the breaker trip, or switch
“OFF”, lower or remove the amplifier input
signals. Remove the AC power by disconnecting
the power cord from the amplifier for 20
seconds. Switch the breaker to the ‘ON’ position.
Reconnect the power cord, then power the unit
up normally. The circuit breaker must be ‘ON’
at all times for the Cubed Series amplifier to
operate.

8. A/C Power Input:

An IEC-320 C14 power inlet provides for
connection of an IEC-320 C13 equipped power
cord. Before connecting the power cord to the
amplifier, check that the voltage rating on the
data plate or ratings label conforms with your

puts the amplifier in Standby mode and the LED
turns red indicating power is present.

Engaging the front panel on/o switch initializes
the startup sequence. During the so start ramp
up operation, the status led will turn orange
when connected to 60Hz power or red when
connected to 50Hz power. The Status LED
switches to green when the ramp up sequence
ends then turns o ten seconds later. Turning
o the front panel on/o switch returns the
amplifier to the Standby mode.

11 . RS232 / USB / Ethernet

Connect the 9B³ to an appropriate control
system to view status and control the unit. See
“Network Connection” on page 10 for further
instructions.

12. Data Plate:

Unit specific information is printed here
including model number, operating voltage,
frequency, and serial number.

9B3 -17-SIL-120
~120V 60Hz 1770W
Serial No: 9B3-000000
Date: 1915 REV:1234

8 9

9B3 Amplifier

Network Connection

You may connect your 9B³ to your local area
network using CAT5 or better cable to facilitate use
of the built in web-based user interface or to control
and monitor the unit using an automation system.
Once connected to the network, you may access the
web user interface with a web browser by entering
the host name into the address bar. The host name
is formatted like so where the last 6 digits are the
serial number of your unit: http://9B-000000

Some web browsers and networks ignore NetBIOS
names such as above. In this case, you will need to
use the numerical IP address of your unit to access
the web user interface. You can find the IP address
by logging into your network router or with popular
network information apps on iOS and Android such
as Fing or by going to http://my.bryston.com

Click or tap and hold a channel to view an event
log for that channel or to rename the channel. Log
events are expressed Hours:Minutes:Seconds since
the log view was opened.

Firmware Update

As with many other Bryston products, the 9B³ may
receive occasional firmware updates to ensure
reliable operation and add new features. Check your
installed version and for any new updates by using
the MENU on the 9B³ web user interface. Internet
connection must be available to show correct
information.

Remote Control

The 9B³ can be controlled and monitored through
a variety of mechanisms including TCP/IP when
connected to your local area network, USB, RS232,
and DC trigger.

Serial Protocol

The 9B³ can receive commands and can send
responses to each command. It can also (optionally)
broadcast automatic responses to certain system
events such as front panel button presses.
Commands can be sent over RS232, RS485 (with an
RS232 to RS485 interface) and TCP/IP using HTTP
cmd.cgi.

Following the command name are the arguments
or parameters for that command. These are two or
more ASCII characters.

The command is always terminated with a carriage
return character. For RS232, this is ASCII code 13.
TCP/IP commands are terminated with a
period (.)

Example:
#80MPWRQS<CR> command: query power status

Responses are returned in the same format as
commands. Note that responses may contain up
to 320 characters. All characters preceding the # or
%23 and following <CR> or . are ignored. Do not
insert #, spaces, <LF>, <TAB> or other non-ASCII
characters inside the command string.

The RS232 input is a 3.5mm mini-jack configured as:

Tip Ring Sleeve

Transmit Receive Ground

Command Format

RS232 # 8 D2 C1 C2 C3 C4 P1 P2

TCP/IP %23 8 D2 C1 C2 C3 C4 P1 P2

The command format always begins with a
command start character.

The next two digits are the Device ID. The first of
which is always “8” for 9B³, and the second will be
“0” except when using RS232/RS485 in a multi-drop
configuration.

Next are C1 through C4 which comprise the
command name. These are typically uppercase
ASCII letters.

... CR

... .

For each installed channel, a rectangular section is
shown providing data about that channel including
the channel name, current temperature in Celsius,
status, and warning lights for clipping and thermal
protection. Click the loudspeaker icon in a channel
to mute that channel, or click the loudspeaker
icon in the blue header to mute all channels
simultaneously. Place the unit in standby or toggle
out of standby by clicking the power icon in the blue
header.

To update the firmware:

1. Download the new firmware file by clicking
“Click here to download firmware.bin”

2. Click “Browse...” or “Choose File” to locate the
newly downloaded file on your computer.

3. Click Update Firmware to initiate the update
procedure. The amplifier will place itself in
standby, update firmware, and the amp will
reboot into standby. Do not remove power or
otherwise interfere with the firmware update
procedure.

10 11

9B3 Amplifier

%2380GETDQS.
%2380GETDxxx.

%2380GETHxxx.

%2380GETSxxx.

%2380INFOQS.

%2380INITQS.
%2380INIT?.
%2380INITnn.

list all parameter names

display decimal value of a parameter
named xxx

display hex value of a parameter
named xxx

display text value of a parameter
named xxx

list system information in 15 lines:

Product Name

01

Serial Number

02

Manufacture Date

03

Firmware Version

04

Bootloader Version

05

Non-volatile Flash1 mem ID

06

Non-volatile Flash2 memID

06

Non-volatile user config EEPROM ID

08

Temperature Sensor ID

09

Microcontroller CPU ID

10

Main system board rev.

11

Ethernet chip ID

12

MAC address

13

NETbios name

14

Current IP address

15

display locked/unlocked status

display list of available options

nn is the command option selection

redefault user configuration

00

(EEPROM)
erase Web GUI files (Flash1)

01

redefault USB file system (Flash2)

02

force reprogram using hex file in

03

Flash1
force reprogram using hex file in

04

Flash2
calibrate all modules T osets to

T1

ambient
clear GUI files and redefault all

fa

parameters to factory
erase & blank-out all non-volatile

fb

memory

222

%2380IPADQS.
%2380LEDSQS.

%2380LISTQS.
%2380LISTnn.

00
01

02

03

04

05

%2380MPWRQS.

%2380MPWR00.

%2380MPWR01.

%2380MMUTQS.

%2380MMUTnn.

%2380MMUTxn.

unlock & allow execution of the
above options note: 00 does not
need unlocking!

Returns current IP address

display channel LEDs status as 4
char string each char representing
color: r=red,y=yellow,g=green,0=o

(or ?) list command options

nn are command options:

list Web GUI and other files in Flash1

list backup Web GUI and other
backup files in Flash1

list FAT12 master boot rec & partition
in Flash2 (USB)

list FAT12 file directory in Flash2
(USB)

verify uploaded user hex file in
Flash1

verify factory backup hex file in
Flash1

display power status
(00=standby,01=ON)

power o (front power key must
be on or remote sw must be set if
enabled, or else no eect!)

power on (front power key must
be on and the unit must have been
switched o remotely prior to
issuing this command.

display status of mute or unmute
as string ggabcde where gg is the
global mute status gg=00

if any of the channel is unmuted,
gg==01

if all channels are muted. abcde
flags mute status of channels 1..5,
respectively. Flag codes are M,U
or X where M=muted, U=unmuted,
X=uninstalled

mute(01) or global unmute(00) all
channels

mute or unmute selected channel,
x=M(mute) or x=U(unmute),
n=channel number 1..5

%2380STATQS.

%2380TEMPQS.

%2380TRIGQS.

%2380TRIG00.
%2380TRIG01.

%2380____ aaa.

display the status and alert flags
of the unit encoded as string
of 5 characters, one per each
channel module:

1 module is in normal powered up

state

t presently overheated

T was overheated in the recent past

(past 60 sec.)

m muted

c presently clipping

C was clipping recently (past 60 sec.)

x module is not installed, fuse blown

or status unknown

0 in standby and front power switch

is o

s in standby by remote, power

switch is on

B breaker open and power button is

on (all modules)

b breaker open and power button is

o (all modules)
display 5 channel temperatures

(in C) followed by the temperature
of the system board. 6 groups of 6
characters are returned as follows:
TEMP sxx.x sxx.x sxx.x sxx.x sxx.x
sxx.x

display signal detected by the
external trigger 00=no signal,
01=12V signal detected

disable external trigger output port

enable external trigger output port
(default)

null command, no action. Any
character string aaa (up to 128
chars) may serves as a comment

COMMANDS SENT THROUGH RS232:
Commands format is the same as above except
the prefix %23 is replaced by # and the end
character . (dot) is replaced by carriage return (\r
= code 13), for example #80INFOQS\r

Special Diagnostic Commands. No end .

or \r needed). Must first unlock by sending

#80INIT222. or %2380INIT222. INIT223 to lock.

Display help text

?

clear all overtemp and clipping

.A

alerts
display overtemp and clipping

.a

alerts
clear all error messages

.c

clear terminal window

.C

display error messages

.e

close terminal window

.E

reboot

.r

dump all system parameters

.s

special test

.t

display current IP address

.i

12 13

9B3 Amplifier

19” / 48.3 cm

17” / 43.2 cm

17.5” / 44.5 cm

19” / 48.3 cm

9B3 Specifications

Power Output

Per Channel

Gain High: 29dB

Sensitivity

(into 8Ω)

Input

Impedance

IMD 60Hz+7kHz 4:1 <0.006%

THD+N 20Hz-20kHz @ 200W, 8Ω <0.005%

Noise (input

shorted, 22Hz-

22kHz)

Slew Rate >60V / µS

Bandwidth <1Hz to >100kHz -3dB

Damping 20Hz, 8Ω >300

Weight Pounds:

Power

Consumption

(Watts)

All ch. 200W 8Ω:

CH1 8Ω Load: 200W

CH1 High: 1.0V

High: 1.4V

Individual Mode

Single Ended

Balanced +

SE: High: 29dB

Low: 23dB

Bal: High: 29dB

Low: 23dB

Kilograms:6529.5

Standby:

All ch. 30W 8Ω:

Low: 23dB

Low: 2.0V
Low: 2.8V

Balanced -

<-108dB
<-113dB
<-110dB
<-116dB

2

Idle:

140
1770
800

28.28 V/V

14.14 V/V
100W

200W
100W
200W

≈30kΩ
≈30kΩ
≈6kΩ

Dimensions

17” C Series 19” C Series (includes front handles)

Heat Load

(BTU/Hour)

All ch. 200W 8Ω:

All ch. 30W 8Ω:

Idle:

≤478
6039
2790

Minimum recommended
clearance for heat dissipation

14 15

Bryston Limited | 677 Neal Drive | Peterborough, Ontario K9J 6X7

Canada | Phone: [phone] | www.bryston.com

300074-5 06/24/2019