Bryston 7b3 User Manual

8
1. Input Select Switch:
Select either Balanced or Single Ended audio
input.
2. Balanced Audio Input:
This input connector accepts standard XLR (pin
1 = Ground, pin 2 = Positive, pin 3 = Negative) or
1/4” Phone plugs (sleeve = Ground, tip = Positive,
ring = Negative). Use quality, 100% shielded
cables with gold plated connectors.
3. 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
balanced source. This is the typical for single
ended or un-balanced operation. The 29dB
setting provides the most amplier gain and
equates to 100w @ 8 ohms output for a 1V input
(noise -113 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 whenver less gain is required. The 23dB
setting equates to an output of 100w @ 8 ohms
for 2V input (noise -116 dB).
The noise is referenced in dB below rated
output. Dierent input congurations 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.
Rear Panel
O
N
F
F
O
o
I
PUSH
1
2
3
29d B
23d B
MAINS SWITCH & BREAKER
EXTERNAL
LOCAL
IN
OUT
REMOTE TURN-ON
CH 1
+
-
SINGLE
ENDED
BALANCED
GAIN
LEVEL
+
_
_
+
3
G
G
2 1
600W INTO 8Ω
INPUTS
STATUS
INPUTS
BALANCED
SINGLE ENDED
PETERBOROUGH, ONTARIO, CANADA
RISK OF ELECTRIC SHOCK - DO NOT OPEN
CAUTION
PRECAUTION
RISQUE DE CHOC ELECTRIQUE - NE PAS OUVRIR
ATTENTION
CAUTION
MADE IN/FABRIQUE AU CANADA
IEC-320 C14 P
OWER INLET
WARNING
DO NOT CONNECT ANY
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.
1 23 114
5 67 8 9 10

Bryston 7b3 Specifications

General

Brand	Bryston
Model	7b3
Category	Amplifier
Language	English