Bryston PowerPac 120, PowerPac 250, PowerPac 60 Owners manual
BRYSTON
OWNER’S MANUAL
Instructions For Bryston
PowerPac 60/120/250
Monaural Amplifiers
GENERAL INSTRUCTIONS
General Information:
Thank you for choosing a Bryston
product. We would welcome any comments
or suggestions you may have regarding the
operation of your amplifier. We consider our
customer to be Bryston,s most important resource and your opinion is very much appreciated. In the unlikely event you have a problem with your amplifier and must return it for
service please keep the original box and all
packaging material.
The Bryston PowerPac 60/120/250
are high quality modular single channel
60/120 /250 watt power amplifier intended for
Setup Recommendations:
We recommend that you do not place
the amplifier in a totally enclosed area. Allow
some space at the top, sides as your Bryston
amplifier relies on convection cooling and
some air flow is desirable.
Make sure the power switch on the
front panel of the amplifier is in the off (out)
position. Plug the power cord into the front
panel of the amplifier, then insert the male
end into the wall outlet.
All Bryston amplifiers contain high
quality, dedicated circuitry in the power supplies to reject RF, line spikes and other
power-line problems.
use in applications where portability, quality
and flexibility are of prime importance.
The PowerPac is a perfect choice for
use as a modular power amplifier which can
be attached directly to the rear of your loudspeaker . It can also be bolted on the wall, or
in the wall, for utilization in audio/video surround systems (left/right/center/rears) where
a non-conspicuous power module is required.
Another application would be in multi-room
audio systems where single or multiple amplifiers are needed to provide music to other
rooms.
Bryston power amplifiers do not require specialized power line conditioners.
Plug the amplifier directly into its own wall
socket.
Connect your loudspeakers ensuring
that the positive (red) and ground (black) terminals on your amplifier are connected to the
positive and ground terminals on your loudspeakers.
Note: Make sure that the front panel
switch for choosing balanced or nonbalanced is in the correct position.
Description:
The Bryston PowerPac 60 monaural
amplifier consist of two of Bryston’s custom
power transistors as output devices. The
power output is 60 Watts @ 8 Ohms.
The Bryston PowerPac 120 monaural
amplifier consist of four of Bryston’s custom
power transistors as output devices. The
power output is 120 Watts @ 8 Ohms.
The Bryston PowerPac 250 monaural
amplifier consist of eight of Bryston’s custom
power transistors as output devices. The
power output is 250 Watts @ 8 Ohms.
Dimensions PP60: (LHW) 12 X 1.8 X 7.1 Inches,
30.5 x 4.6 x 17.9 cm.
Weight 5.7 Lbs/2.6Kg.
Dimensions PP120: (LHW) 12 X 4.3 X 7 Inches,
30.5 x 10.9 x 17.8 cm.
Weight 10.6 Lbs/4.8Kg.
Dimensions PP250: (LHW) 17 X 4.5 X 8.4 Inches,
43 x 11.5 x 21 cm.
Weight 23 Lbs/10.5Kg.
BRYSTON POWERPAC 60/120/250
Input and Output Connectors:
Bryston PowerPac amplifiers come
standard with two input connectors: one unbalanced RCA/phono connector and a balanced combination XLR - 1/4-inch jack with
fully discrete active input circuitry.
All input connectors are gold-plated
and should only be used only with highquality, gold-plated interconnect cable as a
poorly plated connector will eventually corrode through the gold flash.
Bryston offers interconnect cables
with heavily gold plated, quality connectors
available through any Bryston authorized
dealer or directly from Bryston.
Grounding and Ground LIft Switch (except PP250):
A ground lift switch is located on the
front panel of the amplifier. It is connected
between the chassis ground (including the
third prong on the power cord) and the signal
ground.
This switch is normally left in the connected (up) position. Occasionally a multiamplifier installation or an unusual grounding
situation with another component (CD player,
video recorder, television etc.) will cause a
Output connectors consist of one
pair of five-way binding post terminals (1
red and 1 black) that can accept either
standard banana plugs, spade lugs, pins or
bare wire. Since the binding posts are goldplated, we recommend gold plated connectors also be used on the speaker cables.
All Bryston amplifiers will accept balanced or single-ended (RCA) input connectors. The balanced inputs use combination
3-pin XLR (pin-1-ground), (pin-2-+) and
1/4-inch tip-(+), ring and sleeve (ground)
input connectors.
ground loop between the signal ground and
the chassis ground. This switch will reduce
the resultant hum in many cases without resorting to a “ cheater plug ” by switching to
the separated (down) position.
Note: this switch does not disconnect the
chassis from the third prong on the power
cord which must be left intact for safety
reasons.
POWERPAC 60/250 ONLY
Dual colour LED pilot lights indicating GREEN at normal level, flashing RED at clipping.
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