Installation And Usage - Bryston 3B3 Owner's Manual

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 temperature of the
amplifier even under loud playback conditions. For
them to work most effectively, 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.
Heat sinks may be up to 100° Celsius! Take
caution to prevent burns! Never operate the
amplifier in a vertical position.
Connecting to A/C Power
Please check the Data Plate on the right rear of the
amplifier 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 ("8. 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 "11. Power Status
Indicator:" on page 9. The amplifier is now ready
to be powered on.
Connecting to Loudspeakers:
2 Channel Mode
Connection to loudspeakers is accomplished by
attaching high quality speaker cable to the Output
Binding Posts (see "Rear Panel" on page 8) per
4
the following instructions.
The RED binding post is connected to the channel
output. Connect this post to the (+) terminal on the
loudspeaker.
The BLACK binding post is connected to signal
ground. Connect this post to the (-) terminal on the
loudspeaker.
The output binding posts provide three different
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 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.
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 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.