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1050 Mono Power Amplifier
Boulder is the ultimate combination of elegance and performance
Only Boulder has the rare combination of technical
and creative skills required to design this visually
stunning and most musical power amplifier.
Superior sonic performance is assured by the low
distortion, low noise design. Boulder’s proven widebandwidth, two-stage signal path allows the powerful
output section to deliver more musical realism than
ever before.
Today’s loudspeakers can be a difficult load to
drive, demanding very high levels of power and
control. The Boulder 1050 provides high amounts of
both continuous and short term power, capable of
making even the most difficult speaker perform to its
fullest potential.
The output stage uses fifty-six output transistors
and forty-eight power supply capacitors per chassis to
assure stable, high power output into any load while
maintaining detail and clarity unusual for these high
power levels.
The precision, elegant chassis features interlocking
parts for audible dampening and mechanical rigidity.
The heatsinks are machined from solid aluminum,
providing both optimum heat dissipation and large
instantaneous peak power without distortion. Feet
use special constrained layer vibration dampening.
The attractive appearance is conservative enough
to work with any decor assuring a lasting satisfaction
in your investment. The heritage of Boulder’s nearly
20 years of experience in amplifier design is evident
in every aspect of the Boulder 1050 Mono Power
Amplifier.
Your newest listening experience awaits.
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Boulder 1050 Mono Power Amplifier…the inside story
Dampened heatsinks
are an integral part of
Boulder’s machined, quiet
chassis
56 Output transistors
provide stable operation
with any loudspeaker
Multiple gain stages
provide most of the gain
in the first stage thus
maximizing bandwidth
Encapsulated and
magnetically shielded
power transformers for
quietest performance
Boulderlink allows
multiple 1050s to be
sequentially turned on,
and transmit their status
to the display on a
Boulder preamplifier
Easy to connect, rugged, high current, speaker terminals
require no tools
Ultra-high current power connector
Supervising
microprocessor oversees
all functions and
communicates with other
Boulders
48 filter capacitors
(beneath the PCA)
assure a low impedance,
distributed power supply
SPE CIFICATION S
OUTPUT POWER 500W / 8,4,2 Ohms
PEAK POWER 1000W / 4 Ohms, 2000W / 2 Ohms
THD & NOISE 20 to 2kHz: .001% , 20kHz: .005%
FREQ RESPONSE -3 dB @ 0.015Hz, 150kHz
VOLTAGE GAIN 26 dB
S/ N RE : 500W/ 8 129 dB, Unweighted 20 to 20kHz BW
INPUT IMPEDANCE
INPUT CONNECTORS
SIZE 18.0 wide, 9.5 high, 22.5 deep (in.)
(Add 12 in. for power connector)
WEIGHT 140, Shipping: 220 Pounds
POWER 120 VAC, 50 - 60 Hz, 3000 W Max
32 35 P rai rie Ave. • Boulder, CO 8 030 1
30 3-4 49- 822 0 • www.boulderam p.com
Bal: 50k, Unbal: 25k Ohms
3 Pin Balanced
Bo uld er A mpl ifi ers, Inc.
Advanced protection
circuits provide troublefree operation
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