INPUT GAIN SWITCH
The optimum gain setting will depend upon the source pre-amp operating level and/or personal preference.
The
29dB
setting will provide an output of 100 Watts into 8 Ohms (or 28.28Vrms into 8
Ω
) with an input signal of 1Vrms.
The
23dB
setting will provide the same output level with a 2Vrms input signal.
It should be noted that the balanced input, when driven with a balanced signal, will have an inherent 6dB gain increase
relative to the single ended input. Using the lower gain setting of 23dB for balanced inputs and the higher gain setting
of 29dB for single ended inputs thus allows for the same output levels with the same input levels regardless of which
input is used.
LEVEL CONTROL
(PRO models only)
The level control will attenuate the input signal level from 0dB through -14dB.
OUTPUT BINDING POSTS
The
RED
binding post (+) is the
in-phase
amplifier output. Connect this post to the (+) terminal on the loudspeaker.
The
BLUE
binding post (-) is the
inverted-phase
amplifier output. Connect this post to the (-) terminal on the loud-
speaker.
NOTE:
At no time should either output be connected to a ground or chassis.
Failure of the amplifier may result.
Never connect either output in parallel with another amplifier.
The minimum recommended loudspeaker load is 4 ohms.
The Output binding posts provide three different interconnect options. Combinations may be used when bi-wiring. See
figure 2 below. 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.
[a]
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 locking banana
plugs are available from Bryston.
[b] Spade lugs
provide high contact area and secure fastening. Lugs should be gold plated. See
diagram for details. Post diameter is 5/16’ ( 8mm ), lug width 5/8” (16 mm). Gold plated spade
lugs are available from Bryston.
[c]
Stripped bare
wire
up to 3 gage 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 after the initial installation.
MAINS BREAKER/POWER SWITCH
Must be ON for the amplifier to operate and for the amplifier to be turned on remotely
.
This is a combination power
switch and magnetic trip circuit breaker. This switch should be ‘OFF’ during installation. When switched ‘OFF’ all A/C
power is removed from the amplifier, including standby power. 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, lower or remove the ampli-
S
T
Y
O
R
N
B
5/16" 5/8"
