How do you follow up one of the most successful products in the history of a company? With a product that improves upon the original in every way, and the Boulder 866 Integrated does just that.

Power is up to 200W per channel. Manufacturing is substantially more efficient. Weight has been reduced. New circuitry gives you greater current output at maximum power. External IP control has been added. There are versions for traditional systems as well as modern streaming media users. And a dedicated Boulder app easily enables you to manage everything.

And here’s the best part: the sound is everything you would expect from a Boulder. It’s powerful, clean, clear, quick, and true to the sound of the original recording and the intents of the artists involved. In fact, there’s absolutely no reason not to take home an 866. It’s everything you could want and more.

Two versions are available to suit any system: all-analog for more traditional systems and analog+digital for the streaming digital media listener. 

  • INPUTS: 3 pairs balanced analog via 3-pin XLR
  • DIGITAL INPUTS: Ethernet, USB x 4, AES3 (adaptable to S/PDIF), Toslink (optical), WiFi
  • OUTPUTS: 0.25" (6 mm) binding posts
  • CONTINUOUS POWER: 8 OHMS - 200W
  • PEAK POWER:  8 OHMS - 250W
  • INPUTS: 3 pairs balanced analog via 3-pin XLR
  • DIGITAL INPUTS: Ethernet, USB x 4, AES3 (adaptable to S/PDIF), Toslink (optical), WiFi
  • OUTPUTS: 0.25" (6 mm) binding posts
  • CONTINUOUS POWER, 8 OHMS: 200W
  • PEAK POWER, 8 OHMS: 250W
  • CONTINUOUS POWER, 4 OHMS: 400W
  • PEAK POWER, 4 OHMS: 400W
  • PEAK POWER, 2 OHMS: 700W
  • DISTORTION, THD: 0.01%
  • EQUIVALENT INPUT NOISE (EIN), 20 KHZ: 2 μV
  • INPUT IMPEDANCE: 100k ohms, balanced
  • MAXIMUM ANALOG GAIN: 40.4 dB
  • FREQUENCY RESPONSE, 20-20 KHZ: 0.00, -0.04 dB
  • FREQUENCY RESPONSE, -3 DB: 0.015 Hz, 150 kHz
  • POWER REQUIREMENTS: 100V, 120V, 240V, 50-60 Hz
  • POWER CONSUMPTION: 1000W maximum
  • DIMENSIONS: 17" W x 15.4 D x 7.25" H
    (44 cm W x 39 cm D x 19 cm H)
  • WEIGHT54 lbs.
    (24.5 kg)
  • SHIPPING DIMENSIONS: 24" W x 23" D x 14" H
    (61 cm H x 59 cm D x 36 cm H)

Considering how much of an improvement the 866 offers over the 865, Boulder could be charging much more for the privilege. Not only does it sound better, but it's more powerful, stylish and affordable than its predecessor, and with the option to add a DAC, this is a real winner.