Boulder 866 Amplificateur Intégré

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.

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

Specs

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)