Boulder 861 Stereo Amplifier. Unit is in excellent physical and functional condition with original box, packing and accessories. Unit sells as new for $9,450. Demo unit with full warranty.

There is a solution for those in smaller living spaces, for those that have efficient systems, or for those who like the 866 Integrated sonically but prefer separates. The 861 Stereo Power Amplifier checks all these boxes. The 861 being the newest expansion of the 800 series is the same exact size as the 812 DAC Preamplifier it makes for an attractive combo both visually and audibly. All the boards and chassis are still made in Boulder’s dedicated facility in Colorado. You get the high performance, the expertise and craftsmanship in a manageable package.

The 861 is Boulders first amplifier in its size and it punches well above its weight class. Don’t believe us? You should really listen for yourself.

• Continuous Power, 8 Ohms

  50W

• Peak Power, 8 Ohms

  75W

• Continuous power, 4 Ohms

  90W

• Peak Power, 4 Ohms

  110W

• Peak Power, 2 Ohms

  200W

• Balanced Analog Inputs

  1 pair balanced via 3-pin XLR

• Outputs

  .25" (6mm) Binding posts

• Distortion, THD

  0.01%

• Equivalent Input Noise (EIN), 20 kHz

  2.6 μV

• Input Impedance

  100kΩ Balanced

• Frequency Response, 20 Hz to 20 kHz

  +0.00, -0.04 dB

• Frequency Response, -3 DB

  0.015 Hz, 150 kHz

• Maximum Analog Gain

  26 dB

• Power Requirements

  100V, 120V, 240V, 50-60 Hz

• Power Consumption

  550W Maximum

• Dimensions

  12"x12"x3.5"

• Weight

  22 lbs

Original Accessories:

• Box, Packing, Manual, Accessories