Boulder 3060 Stereo Power Amplifier

Production of the 3060 is extremely limited and every unit is built to order Each amplifier is shipped with machined aluminum and a polished stainless steel base that is cut to match the footprint and casework angles of the amplifier's 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

Peak Power, 8 Ohms- 1000W

Peak Power, 4 Ohms- 1650W

Peak Power, 2 Ohms- 2000W

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: 0.0012%, 20 kHz: 0.0045%

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

Magnitude Response, 20 to 20 KHz- +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