Boulder 866 Integrated Amplifier

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.

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)