Boulder 2150 Manual de usuario
Boulder Ampliers, Inc.
3235 Prairie Ave.
Boulder, CO 80301
(303)449-8220
www.boulderamp.com
2150 Stereo Power Amplier
Owners Manual
7/22/2014
P/N: 91045
Getting StartedOperationRemote ControlBoulderlinkFault ConditionsAppendix
2
3
Congratulations and thank you for selecting the Boulder 2150 Mono Power
Ampliers for your high-performance music system. We are certain they will
provide you with years of listening pleasure.
The 2150s represent the concerted efforts of numerous Boulder craftsmen,
designers, engineers, and technicians working to bring you the very nest
audio playback components in the world. These Ampliers are among the
best that Boulder has to offer.
Please take a few minutes to read through this owner’s manual prior to
using your 2150s. This will help you to understand the basic functions and
outstanding capabilities of the ampliers. It will also allow you to maximize
the exceptional performance for which they were designed.
Your Boulder 2150 Mono Power Ampliers, Serial numbers XX00 (L)
and XX00 (R), have undergone an extensive laboratory tests for safety,
functionality and technical performance. In addition, your ampliers have
been individually subjected to rigourous listening trials in our listening room,
utilizing a wide range of musical material. No amplier ever leaves our
factory until we are totally satised it is capable of achieving its full potential
as designed.
Boulder Ampliers, Inc.
Thank You
Getting StartedOperationRemote ControlBoulderlinkFault ConditionsAppendix
4
5
Getting Started 1-1
Placement of the 2150 Mono Power Amplier 1-1
Connecting To The Mains Outlet 1-1
Connecting to a Balanced Source 1-3
Connecting to an Unbalanced Source 1-3
Polarity 1-5
Connecting Your Loudspeakers 1-5
Operation 2-1
Powering Up 2-1
Input DC Oset Voltage Detection 2-3
Clip Detection 2-3
Thermal Protection 2-3
Maintenance 2-3
Remote Control 3-1
Remote Control Operation 3-1
Boulder Link 4-1
Connecting The Boulder Link 4-1
Setting Boulder Link Switches 4-1
Setting Boulder Link ID Numbers 4-3
Power Up By Boulder Link 4-3
Boulder Link Messages 4-5
Fault Conditions 5-1
Fatal Errors 5-1
Appendix 6-1
Specications 6-1
Troubleshooting 6-3
Notes: 6-5
Table of Contents
1-1
Placement of the 2150 Mono Power Amplier
Your Boulder 2150 Power Amplier is designed to reduce interference
from external magnetic and radio elds (RF). While placement is not critical,
known magnetic elds should be avoided.
Moving these components will require at least four people, as they are
very heavy. Professional movers are recommended.
The 2150 Mono Power Amplier will generate some heat. Therefore,
it should be located in an area with ample air circulation. Specically, be
certain that the heat sinks are unobstructed by objects that could potentially
block air-ow.
You may want to have access to the rear panel for cable changes. It
is recommended that speaker cables be as short as possible, while input
cables can be as long as necessary.
Connecting to the Mains Outlet
Your 2150 Mono Power Amplier is supplied with a mains power cable
suitable to the location where it was purchased. It is constructed of large
enough wire gauge and a plug appropriate for 240v AC line voltage. Do not
substitute another power cable.
Exact voltage and frequency compatibility is stated in the
specications section.
Once the 2150 Power Amplier is connected to a live mains outlet, the
small round LED at the top right of the amplier will become illuminated and
blink for a short time. The LED will then glow white steadily, indicating that
the supervising microprocessor is powered up and the amp is ready to be
turned on.
Getting Started
Getting Started
1-2
Getting Started
Getting Started
1-3
Getting Started
Getting Started
Connecting to a Balanced Source
To fully realize the sonic potential of your 2150 Mono Power Amplier,
use balanced connections. Balanced cables minimize interference from
magnetic and RF sources.
Connect your preamplier output to the input provided on the rear
panel of the 2150.
Connecting to an Unbalanced Source
Although the inputs are of the 3-pin type, an unbalanced source is
easily accommodated by using a special cable. This cable has an RCA type
connector on the source end, and a 3-pin connector for going to the input of
the 2150 Power Amplier.
The negative input (pin 3) should be wired to ground only at the RCA
connector. This brings the negative input reference of the 2150 to the
unbalanced source ground, thus reducing loops.
Another option for accommodating unbalanced sources is that of the
Boulder ABL2 Input Adapter. It converts a balanced input into an RCA input
right at the rear panel of the 2150.
Like the above cable, the negative input of the 2150 is connected
to the ground of the RCA connector. However, this negative side will then
share the shield wire with the chassis ground and will not have very good
hum rejection.
1-4
Getting Started
Getting StartedGetting Started
Getting Started
1-5
Polarity
Please note that the 2150 Mono Power Amplier conforms to the
standard of pin 2 as the “high” or “hot” pin for the balanced input.
The Polarity of the 2150 Mono Power Amplier is such that a positive-
going transition at pin 2 will produce a positive-going transition at the “+”
output terminal.
Connecting Your Loudspeakers
Do not use any wrenches on the loudspeaker binding posts. Tighten
these connectors only by hand.
WARNING: This is a high-power amplier. When driven, there is high
voltage potential at the terminals. Connections should be made with the
mains disconnected.
Select spade terminals which accept 6 mm or .250 inch diameter
binding posts. Two sets of output connections are provided to enable easy
passive biamping.
There is no provision for the use of banana plugs. These plugs
have been proven to come loose over time which increases the contact
resistance and distortion. For the same reasons we also do NOT
recommend the use of banana plugs at the speaker end.
Getting Started
Getting Started
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