Boulder 866 Integrated Amplifier

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.  

As a Roon end-point, the 866 Integrated truly becomes the centerpiece of a streaming music system at the highest level of performance and value. The Roon interface provides the user with a very intuitive access to streaming services and/or music stored on a Roon core (Mac or Windows PC or a dedicated server. Roon truly sets the standard as a user interface with an in depth access to details of any album/artist and essentially a Wikipedia of information on everything related to the subject. It is truly the best way we know of to explore and experience new music. It is also a great and convenient way to enjoy the music you love. Providing bit-perfect audio via Ethernet to the 866 it assures you the highest quality playback.

The 866 Integrated shows you album artwork and metadata on the very large front panel display. With 200 watts of continuous power into 8 ohms and 600 watts peak power into 2 ohms it will deliver the music you love with clarity and control. The 866 is designed and built entirely at our Colorado facility. Now with Roon capability, the 866 Integrated is a game changer!

Features

• Two versions are available to suit any system: all-analog for more traditional systems and analog+digital for the streaming digital media listener
• Excellent power, dynamics, and control from 200W of amplifier power into any loudspeaker load
• A full-color touch screen displays all of the available inputs and setup features in addition to the amplifier's status and setup modes
• A dedicated Boulder app controls the 866 and makes custom setup adjustments, including adding photos of your sources to the inputs shown on the 866's front panel, optional RF remote for volume control and switching inputs also available
• In-house manufacturing efficiency improvements have made the 866 an incredible value in comparison to previous integrated amplifiers
• New protection circuitry enables the 866 to deliver greater current at maximum output without fear of damage to the amplifier's electronics
• The analog+digital version of the 866 adds digital inputs for USB, Ethernet, AES3, Toslink, Air-Play, plus Roon integration
• Along with assembly and testing, every circuit board and piece of metalwork is produced in-house at Boulder's dedicated facility for unparalleled quality assurance
• Boulder's traditional 0.25" (6 mm) thumbscrew binding posts are included for secure speaker cable connections and optimal sound quality
• Made in USA

Specifications

• 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 per channel

• PEAK POWER, 8 OHMS

  250W per channel

• CONTINUOUS POWER, 4 OHMS

  400W per channel

• PEAK POWER, 4 OHMS

  400W per channel

• PEAK POWER, 2 OHMS

  700W per channel

• 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)

• WEIGHT

  54 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)

• SHIPPING WEIGHT

  64 lbs.
  (29 kg)

Support

• Datasheet
• Manual (Analog only)
• Manual

About

For over 35 years, Boulder has been building the world’s highest quality audio components near Boulder, Colorado. Early origins in broadcast and recording meant that record producers and recording engineers who listened day after day recognized the neutral and transparent performance that enabled the character of individual recordings to shine through the electronics. Over the years the company has made the gradual transition from professional to home audio. Having worked carefully to improve quality without compromise, all aspects of design, manufacturing, and assembly are now carried out in a purpose-built facility. Boulder’s independent ownership has also remained the same since its founding, meaning that new products will be developed by a team who adheres to the company’s core values for years to come.

With distribution in more than 40 countries, Boulders are cherished by music and film lovers all over the world and are instilled with quality and value that transcend the passage of time.