Bryston 14B3 Owner'S Manual Download Page 7

14B

3

 Amplifier

7

1. Power/Standby Switch:

The front panel features a push-on/push-off 

type latching power switch used to apply or 

remove A/C line power to the SoftStart circuitry. 

Note that the rear circuit breaker must be on for 

the amplifier to power-up.

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

Green

Channel operation is normal

Flashing 

Red

Channel is clipping. Reduce input 

level!

Orange

Thermal protection mode

POWER UP SEQUENCE

 

After 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).

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.

In some markets the 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 above descriptions.

Front Panel

17.00"

7.50"

19”

19.00”

1

2

Summary of Contents for 14B3

Page 1: ...14B3 Amplifier Owner s Manual ...

Page 2: ...E 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 exclu...

Page 3: ...on 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 6 Power Conditioners 6 Front Panel 7 Rear Panel 8 14B3 Specifications 10 Dimensions 11 ...

Page 4: ...e 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 effort to minimize the noi...

Page 5: ...become damaged Note that copper wire is malleable and may require further tightening after 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 vol...

Page 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 9 ...

Page 7: ...urs 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 overl...

Page 8: ...Y TERMINALS TOGETHER OR TO GROUND RISK OF HAZARDOUS ENERGY MAKE PROPER SPEAKER CONNECTIONS USE CLASS 2 WIRING AVERTISSEMENT NE PAS BRANCHER LES BORNES ENSEMBLE OU À LA TERRE RISQUE DE ÉNERGIE DANGEREUSE FAIRE CONNECTIONS ENCEINTE ADÉQUAT UTILISATION CÂBLAGE DE CLASSE 2 WARNING DO NOT CONNECT ANY TERMINALS TOGETHER OR TO GROUND RISK OF HAZARDOUS ENERGY MAKE PROPER SPEAKER CONNECTIONS USE CLASS 2 WI...

Page 9: ...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 locality With the circuit breaker ON insert the power cord into the Cubed series amplifier then plug the other end to an ...

Page 10: ...ingle Ended Balanced Balanced 7 5kΩ 5kΩ 5kΩ IMD 60Hz 7kHz 4 1 0 005 THD N 20Hz 20kHz 600W 8Ω 0 005 Noise input shorted 22Hz 22kHz SE High 29dB Low 23dB Bal High 29dB Low 23dB 115dB 119dB 116dB 120dB Slew Rate 60V µS Bandwidth 1Hz to 100kHz 3dB Damping 20Hz 8Ω 300 Weight Pounds Kilograms 91 41 3 Power Consumption Watts Standby Idle 600W 8Ω 75W 8Ω 0 5 170 2200 875 Heat Load BTU Hour Idle 600W 8Ω 75W...

Page 11: ...in 18 4 in 16 8 in 7 8 in 7 in 4U 17 in 19 in 19 in Mounting Depth 16 1 in Total Depth 18 1 in 18 4 in 16 8 in Dimensions Minimum recommended clearance for heat dissipation 17 C Series 19 C Series includes front handles 19 PRO Series includes front handles ...

Page 12: ...Bryston Limited 677 Neal Drive Peterborough Ontario K9J 6X7 Canada Phone 705 742 5325 www bryston com 300045 2016 01 19 ...

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