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Boulder 3060 Stereo Power Amplifier

There are projects like the Boulder 3060 Stereo Amplifier that contradict conventions and redefine striving for perfection. Attempts are made to push the boundaries of what is thought to be possible. These projects involve countless hours of research, experimentation, and hard work, with each step along the way creating small improvements. When accumulated, each of these small improvements mean big leaps forward. They embody the concept of what it takes to be the very best and the results are breathtaking. Just like the Boulder 3060.

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Production of the 3060 is extremely limited and every unit is built to order Each amplifier is shipped with a machined aluminum and polished stainless steel base that is cut to match the footprint and casework angles of the amplifier 60 bipolar output transistors per channel mean unmatched control of any loudspeaker system All assemblies are completely designed, manufactured and hand-assembled at our facility in Louisville, Colorado Contains four (two per channel) of Boulder's highest performing gain stage, the 99H 48 massive filter capacitors are part of an ultra-responsive, low-impedance power supply 900W per channel power output into any loudspeaker load Bias operation is Class-A to full rated output power and managed with an analog circuit that minimizes heat and power consumption Five power transformers, housed in machined cases and potted to absolutely eliminate any noise, vibration or hum

Specifications 3060 STEREO POWER AMPLIFIER

PEAK POWER, 8 OHMS 900W
PEAK POWER, 4 OHMS 1650W
PEAK POWER, 2 OHMS 3000W THD, 8 OHMS, 900W 20-2 kHz: 0.0006%, 20 kHz: 0.0025% THD, 4 OHMS, 900W 20-2 kHz: 0.0008%, 20 kHz: 0.0030% THD, 2 OHMS, 900W 20-2 kHz: 0.0008%, 20 kHz: 0.0030% 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 FREQUENCY RESPONSE, 20 HZ TO 5 KHZ +0.00, -0.03 dB FREQUENCY RESPONSE, -3 DB 0.02 Hz & 300 kHz 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: 335 lbs. (161 kg), Granite Base: 86 lbs(39 kg), Shipping: 563 lb. (256 kg)

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