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Boulder 3050 Monoblock Power Amplifier

Power corrupts. Absolute power corrupts perfectly. The Boulder 3050 Mono Amplifier, our flagship, is our most powerful, largest, and most luxurious product in over 30 years of sound system design. These are Boulder’s premier power amplifiers, the unequivocal peak of our abilities. Few people will ever see or hear them and fewer still will be lucky enough to own them. And yet because of their very existence the limits of sound reproduction have been pushed further than ever before. Even Robb Report magazine acknowledged their superiority with their Best of the Best award. At every step of the 3050s development, one fundamental objective was consistent: the pursuit of absolute perfection in sound quality. Mission accomplished.

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Boulder's biggest, most powerful, and highest performing amplifier, each built to order for its new owner Black granite and stainless steel base, cut to match the angles and footprint of both the left and right amplifiers Full Class-A biasing to maximum output, managed with an analog circuit that reduces bias current whenever possible to increase efficiency and reduce heat Circuit boards are installed in aluminum mounting frames precisely machined to fit the board and sandwiched with a layer of damping material Completely designed, manufactured, and hand-assembled at our facility in Louisville, Colorado Intelligent microprocessor control so amplifiers can automatically set proper turn-on sequence via Boulder Link and transmit any necessary information to a Boulder preamp's display 120 output transistors for unequaled damping and power delivery Left and right amplifier chassis are mirror-imaged and feature multiple surface angles to break up any reflected sound 1,500 watt power output into any load means absolute clarity and control of loudspeakers Every 3050 contains two of Boulder's highest performing gain stages, the 99H, available only in 3000 Series products Four transformers per amplifier, each DC filtered, sealed in machined housings, and potted in a proprietary epoxy for silent operation Differentially balanced, instrumentation-style input circuitry for ideal electrical interface with any preamplifier or source component

Specifications

Peak Power, 8 Ohms- 2100W

Peak Power, 4 Ohms- 3000W

Peak Power, 2 Ohms- 6000W

THD, 8 Ohms, 1500W- 20-2 kHz: 0.0005%, 20 kHz: 0.0035%

THD, 4 Ohms, 1500W- 20-2 kHz: 0.0008%, 20 kHz: 0.0045%

THD, 2 Ohms, 1500W- 20-2 kHz: 0.0014%, 20 kHz: 0.0110%

Equivalent Input Noise (EIN), 20KHz BW- 1.5 μV

Magnitude Response, 20 to 20KHz- +0.00, -0.04 dB

Magnitude Response, -3dB at- 0.015 Hz, 200 kHz

Voltage Gain- 26dB

Input Impedance- Balanced: 200KΩ,
Unbalanced: 100KΩ

Common Mode Rejection (Balanced Only)- 60 Hz: 90dB,
10 kHz: 70dB

Inputs- 3-pin balanced (XLR)

Output Connectors- 2 sets of 6 mm/ .250-inch wingscrews

Power Requirements- 220-240 VAC

50-60 Hz, 300W nominal, 6000W at maximum output

Weight- Amplifier: 355 lbs. (161 kg),

Base: 86 lbs. (39 kg),

Shipping: 563 lbs. (256 kg)

Amplifier Topology- Pure Class A to full-rated output

Boulder 3050 Monoblock Power Amplifier

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