3060 Stereo Power Amplifier
3060 Stereo Power Amplifier
Owners Manual
10/26/2016
Boulder Amplifiers, Inc.
255 Taylor Ave.
Louisville, CO 80027
(303) 449-8220
www.boulderamp.com
Appendix
2
Fault Conditions
Boulderlink
Remote Control
Operation
Getting Started
Thank You
Congratulations and thank you for selecting the Boulder 3060 Stereo Power
Amplifier for your high-performance music system. We are certain they will
provide you with years of listening pleasure.
The 3060 represents the concerted efforts of numerous Boulder craftsmen,
designers, engineers, and technicians working to bring you the very finest
audio playback components in the world. This amplifier is the pinnacle of
Boulder’s product line which only a select few owners will be privileged to
experience.
Please take a few minutes to read through this owner’s manual prior to
using your 3060. This will help you to understand the basic functions and
outstanding capabilities of the amplifier. It will also allow you to maximize
the exceptional performance for which they were designed.
Your Boulder 3060 Stereo Power Amplifier, serial number XX00 , has
undergone extensive laboratory tests for safety, functionality and technical
performance. In addition, your amplifier has been individually subjected
to rigourous listening trials in our listening room utilizing a wide range of
musical material. No amplifier ever leaves our factory until we are satisfied
that it is capable of achieving its full potential.
Boulder Amplifiers, Inc.
3
Appendix
4
Fault Conditions
Boulderlink
Remote Control
Operation
Getting Started
Table of Contents
Getting Started
1-1
Placement of the 3060 Stereo Power Amplifier
1-1
Connecting to the AC 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 Offset 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 Boulder Link
4-1
Setting Boulder Link Switch
4-1
Setting Boulder Link ID Number
4-3
Power Up By Boulder Link
4-3
Boulder Link Messages
4-5
Fault Conditions
5-1
Fatal Errors
5-1
Appendix6-1
Specifications
6-1
Troubleshooting
6-3
Notes:
6-5
5
Getting Started
Getting Started
Placement of the 3060 Stereo Power Amplifier
Your Boulder 3060 Power Amplifier is designed to reduce interference
from external magnetic and radio fields (RF). While placement is not critical,
known magnetic fields should be avoided.
An granite base is included with the Boulder 3060. The granite base
is intended to serve as a platform on which to place the power amplifier.
Choose a solid stable surface for the granite base and amplifier. The
granite base should be selectively located prior to placing the amplifier on it.
Moving these components will require at least four people, as they are very
heavy. Professional movers are recommended.
The 3060 Stereo Power Amplifier will generate some heat. Therefore,
it should be located in an area with ample air circulation. Specifically, be
certain that the heat sinks are unobstructed by objects that could potentially
block air-flow.
You may want to have access to the rear panel for cable changes.
Although input cables can be as long as necessary, it is suggested that
speaker cables be as short as possible.
Connecting to the AC Mains Outlet
Your 3060 Stereo Power Amplifier is supplied with a mains power
cable suitable for 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
specifications section.
Once the 3060 Power Amplifier is connected to a live mains outlet and
the rear panel switch is moved to the “On” position, an outline of the power
button on the front panel will become illuminated and blink for a short time.
The outline will then pulse white on and off, indicating that the supervising
microprocessor is powered up and the amp is ready to be turned on.
1-1
Getting Started
Getting Started
1-2
Getting Started
Getting Started
Connecting to a Balanced Source
To fully realize the sonic potential of your 3060 Stereo Power
Amplifier, use balanced connections. Balanced cables minimize
interference from magnetic and RF sources.
Connect your preamplifier output to the input provided on the rear
panel of the 3060.
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 3060 Power Amplifier.
The negative input (pin 3) should be wired to ground only at the RCA
connector. This brings the negative input reference of the 3060 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 3060.
Like the above cable, the negative input of the 3060 is connected
to the ground of the RCA connector. However, the negative side will then
share the shield wire with the chassis ground and will not have very good
hum rejection.
1-3
Getting Started
Getting Started
1-4
Getting Started
Getting Started
Polarity
Please note that the 3060 Stereo Power Amplifier conforms to the
standard of pin 2 as the “high” or “hot” pin for the balanced input.
The Polarity of the 3060 Stereo Power Amplifier 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 a wrench or any other tool on the output terminal binding
posts. Tighten these connectors by hand only.
WARNING: This is a high-power amplifier. 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. Banana plugs are
proven to come loose over time which increases the contact resistance and
distortion. We do NOT recommend the use of banana plugs at the speaker
end, for these reasons.
1-5
Getting Started
Getting Started
1-6
Operation
Operation
Powering Up
With all connections made, you are ready to listen to your Boulder
3060 Stereo Power Amplifier.
To turn the amplifier on, slide the rear panel POWER switch to the ON
position, then press the STANDBY button on the front panel. The amplifier
will perform a warm up cycle and the power-button indicator will blink white
and red. This power up sequence is mandatory and cannot be avoided.
Because of the large inrush currents associated with the four large
Toroidal transformers, eight power relays are used to turn on the amplifier.
These are under control of the supervising microprocessor. During the
power up sequence, you will hear four sets of two relay clicks, separated by
intervals of two seconds.
The indicator will then steadily glow white and remain this way to
indicate normal operation.
To turn the amplifier off, press the STANDBY button again. The
indicator will then slowly and continuously change from white, to dark, and
back to white. This indicates that the amplifier is in “Stand-By” mode.
2-1
Operation
Operation
2-2
Operation
Operation
Input DC Offset Voltage Detection
The Boulder 3060 Stereo Power Amplifier is a direct-coupled power
amplifier with a servo for zeroing out any DC voltage offset coming from the
preamplifier or other sources connected to the amplifier’s input.
If this input DC is sufficient to cause three volts or more at the
output, a loudspeaker protection circuit will mute the amplifier output by
electronically disconnecting from the loudspeaker. The power indicator will
also turn red. This condition will continue until the DC is removed.
If the indicator remains red, it is recommended that the user correct
the DC offset of the source device before continuing.
Clip Detection
Clipping of the waveform results when any amplifier is driven at too high a
level. A clip detection circuit is included in the 3060 Stereo Power Amplifier.
The indicator will indicate clipping by momentarily turning from
white to red. Both voltage and current modes of clipping will be detected,
although generally it is only voltage clipping which occurs.
Thermal Protection
A thermal protection circuit prevents high case temperatures which
are unpleasant to touch and potentially harmful to the amplifier. The thermal
cutout circuit will mute the amplifier when the transistor cases reach 85°C,
and the indicator will turn red.
If this happens, more ventilation should be provided for the amplifier.
Maintenance
No routine maintenance is required for the Boulder 3060 Power
Amplifier. However, to keep the operating temperatures at a minimum, do
not block the heat sink fins, and remove any dust buildup that may occur.
2-3
Operation
Operation
2-4
Remote Control
Remote Control
Remote Control Operation
Operation of the Boulder 3060 Stereo Power Amplifier by remote
control is possible by use of a Boulder Link cable to a Boulder preamplifier.
When Boulder Link is connected correctly, the 3060 will turn on and
off with the preamplifier. Moreover, the Boulder 3060 is capable of issuing
on/off commands to all other Boulder equipment attached by Boulder Link.
3-1
Remote Control
Remote Control
3-2
Boulder Link
Boulder Link is a means of interconnecting Boulder products so that
their microprocessors can talk to each other, pass important information,
and issue commands. Among the key features, Boulder Link allows
sequential initiation of power amplifiers and other products. Boulder power
amplifiers can send messages to Boulder preamplifiers and shown on the
preamplifier’s display.
Boulder Link
Connecting Boulder Link
Turn off all Boulder products to be linked before connecting Boulder
Link cables and setting the Boulder Link ID and Master/Slave switches.
Boulder Link cables in various lengths are available as an accessory
from your Boulder dealer. Two connectors are provided on the rear panel of
the 3060 and other Boulder products.
All the chassis are connected together in a “daisy chain” manner. Start
by connecting one chassis to another­—then from that chassis to the next,
until all are connected. The order does not matter.
A special interface may be obtained to enable Boulder Link to be used
with other control systems. Contact your Boulder dealer for more details.
Setting Boulder Link Switch
Every Boulder Link system must have one, and only one “MASTER”
component. This is usually the preamplifier. In the case of the 3060 Power
Amplifier, one channel should be set to “MASTER” if no preamplifier is
connected by Boulder Link. Other Boulder Link products which do not have
a MASTER/SLAVE switch are not eligible to be “MASTER”.
4-1
Boulder Link
Boulder Link
4-2
Boulder Link
Setting Boulder Link ID Number
Every component is required to have a unique Boulder Link ID
number.
Boulder Link
Each Boulder 3060 Stereo Power Amplifier has an amplifier ID switch
on the rear panel. Start by setting the first switch to “0” or “1” by pressing
either button above or below the ID window. Once the first amplifier is
set, assign any other amplifiers numbers, moving up in sequence without
duplication. Use of the lowest numbers will hasten the turn on process, as
each Boulder products is allowed three seconds to initialize before the next.
This spreads out the Mains power inrush current, preventing the house
circuit breakers from unnecessarily tripping. Up to 16 Boulder components
may be connected together in one Boulder Link daisy chain.
Power Up By Boulder Link
With each component connected together via Boulder Link cables,
and individually connected to a mains outlet, pressing the power amplifier’s
or preamplifier’s “STANDBY” button will initiate the turn on sequence of all
components.
The first time a master is powered up, it will search for any connected
“SLAVE” units. As the MASTER finds each SLAVE, the SLAVE’s ID number
will be shown on the display.
If any of the connected SLAVES are amplifiers, then each time the
MASTER is turned on it will display “WAITING FOR AMPS.” Each amplifier
will be turned on in the order of its Boulder Link ID. To minimize turn on
time, the amplifier’s ID should be set to the lowest possible number in the
sequence. For example, use “0”, “1”, and “2”, instead of “13”, “14”, and “15”.
An Amplifier set to ID “15” will take 47 seconds to turn on.
4-3
Boulder Link
Boulder Link
4-4
Boulder Link
Boulder Link Messages
Each component in the system can send a message to the
preamplifier which is then shown on its display. This is particularly helpful
in confirming the operation status of each power amplifier in a multiple
amplifier system. Typical messages on a Preamplifier are as follows:
“AMP 1 Error” means that an internal power supply has failed and the
amplifier has turned itself off to protect the speakers from damage.
“AMP 1 DC” means that it has muted due to a DC offset voltage being
detected at its inputs.
Boulder Link
“AMP 1 HOT” means that the amplifier has muted due to a higher than
normal temperature condition on the heat sinks.
“AMP CLIP” means that the amplifier’s output has momentarily
reached its voltage limitation.
“1 OFFLINE” means that the slave is no longer responding via
Boulder Link. Its Boulder Link cable may have become disconnected, or the
mains power has been disconnected.
“1 ONLINE” means that the slave is now responding via Boulder Link
in a normal manner and has been recognized by the master.
4-5
Boulder Link
Boulder Link
4-6
Fault Conditions
Fatal Errors
Fault Conditions
If the indicator of the 3060 Stereo Power Amplifier blinks white
rapidly for a short time and a series of red flashes follows, a fatal error has
occurred. The indicator will flash red in a specific sequence, defining its
error code to an authorized Boulder technician. If you are experiencing this
problem with your 3060, contact your Boulder dealer immediately.
5-1
Fault Conditions
Fault Conditions
5-2
Appendix
Specifications
Watts
Continuous Power, Each Channel
900
900
900
Ω
THD 20-2kHz
THD 20kHz
8
4
2
0.0008%
0.0009%
0.0014%
0.0035%
0.0045%
0.0090%
Peak Power, Each Channel
Watts
Ω
1000
1650
2000
8
4
2
Equivalent Input Noise (EIN), 20kHz BW
Magnitude Response, 20 to 20KHz
+0.00, -0.04 dB
Magnitude Response, -3dB at
0.015Hz, 200kHz
Voltage Gain
26dB
Input Impedance
Balanced: 200KΩ,
Unbalanced 100KΩ
Common Mode Rejection (Balanced only)
Appendix
Inputs
Output Connectors
Power Requirements
6-1
1.5 µV
60 Hz: 90dB,
10kHz: 70dB
3-pin Balanced
2 sets of 6 mm / .250 inch wingscrews
220-240 VAC
50-60 Hz, 300W nominal, 6000 W at maximum output
Appendix
All specifications taken at 240 VAC mains Power
Weight:
Amplifier: 355 lbs. (161 kg),
Granite Base: 86 lbs. (39 kg),
Shipping: 563 lbs. (256 kg).
Amplifier Dimensions (Inches):
Appendix
6-2
Appendix
Troubleshooting
SYMPTOM
CAUSE
No Power Indication
Rear Panel Power
switch is not on
Turn on power switch
Power amplifier is not
plugged in
Connect to AC Mains
outlet
Home circuit breaker
is tripped
Have line voltage
checked
Low line voltage
Reset breakers on
rear panel
Defective power
cable
Have cable tested
Defective power
supply
Return to dealer for
service
No signal from one
channel of source
Check source
controls, cables, and
connections
One channel is muted
by balance control
Re-center balance on
preamp
No signal out to
power amplifier
Check connections
from preamplifier
Red power indication
Appendix
White power
indication, but no
sound from one
channel
6-3
REMEDY
Appendix
Appendix
6-4
Appendix
Appendix
Notes:
6-5
Appendix
Notes:
Appendix
6-6
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