background image

The lightning flash with arrowhead symbol within an equilateral triangle, is 
intended to alert the user to the presence of un-insulated “dangerous volt-

age “ 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. 

 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 

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.

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

time.

15.   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.

16. 

Heat sinks may exceed 100

°

 Celsius! 

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.

Postal address: 

P.O. BOX 2170, Stn.  Main

 

PETERBOROUGH, ONTARIO

 

CANADA  K9J 7Y4

Courier address: 

677 NEAL DRIVE

 

PETERBOROUGH, ONTARIO

 

CANADA  K9J 6X7

PHONE: 705-742-5325

FAX: 705-742-0882

E-mail: [email protected]

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

PHONE: 802-334-1201

FAX:  

802-334-6658

E-mail: [email protected]

BRYSTON SERVICE in CANADA:

BRYSTON SERVICE in the USA:

contact your local distributor or
CHECK OUR WEB SITE: 

  www.bryston.com 

E-MAIL BRYSTON DIRECTLY: 

[email protected]

FAX BRYSTON DIRECTLY: 

01-705-742-0882

PHONE BRYSTON DIRECTLY: 

01-705-742-5325

BRYSTON SERVICE outside Canada and the USA:

Important Safety Instructions

Содержание 28B3

Страница 1: ...28B3 Amplifier Owner s Manual ...

Страница 2: ...AIN 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...

Страница 3: ...Description 4 Features 4 Shipping Box and Packing Material 4 Installation and Usage 4 Ventilation 4 Connecting to A C Power 4 Connecting to Loudspeakers 5 Balanced vs Single Ended Input 6 Power Conditioners 6 Front Panel 7 Rear Panel 8 28B3 Specifications 10 Dimensions 11 ...

Страница 4: ...ise 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 effort 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 ...

Страница 5: ... 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 offer 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 lockin...

Страница 6: ...ision 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 supplied with each amplifier Set the External Turn On switch to External See 7 ...

Страница 7: ...ccurs 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 ove...

Страница 8: ... wire 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 Only use Class 2 Rated Wiring No other wiring is permitted for use 5 Master Circuit Breaker The Cubed series amplifier uses a magnetic trip circuit breaker ...

Страница 9: ...n 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 8 Power Status Indicator Plugging in the power cord applies power to the amplifier The status indicator will initially flash green The number of flashes ind...

Страница 10: ...nded Balanced Balanced 15kΩ 15kΩ 15kΩ IMD 60Hz 7kHz 4 1 0 005 THD N 20Hz 20kHz 1000W 8Ω 0 005 Noise input shorted 22Hz 22kHz Single Ended Balanced 116dB 117dB Slew Rate 65V µS Bandwidth 1Hz to 100kHz 3dB Damping 20Hz 8Ω 300 Weight Pounds Kilograms 93 42 Power Consumption Watts Standby Idle 1000W 8Ω 166W 8Ω 0 5 225 1790 810 Heat Load BTU Hour Idle 1000W 8Ω 166W 8Ω 768 6108 2764 ...

Страница 11: ...28B3 Amplifier 11 8 1 in 7 8 in 7 in 4U 17 in 19 in 19 in 18 4 in 16 8 in Dimensions Minimum recommended clearance for heat dissipation 17 C Series 19 C Series includes front handles ...

Страница 12: ...Bryston Limited 677 Neal Drive Peterborough Ontario K9J 6X7 Canada Phone 705 742 5325 www bryston com 300046 2016 02 04 ...

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