Boulder – 866D integrated amplifier + digital for the streaming
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 866D 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.
This integrated amplifier version are analog+digital for the streaming digital media listener.
A dedicated Boulder app controls the 866D and makes custom setup adjustments,
including adding photos of your sources to the inputs shown on the 866’s front panel.
The analog+digital version of the 866D adds digital inputs for USB, Ethernet, AES3, Toslink,
plus Roon integration and wireless streaming via Apple’s AirPlay to the standard three pairs of analog inputs.
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.
In-house manufacturing efficiency improvements have made the 866D an incredible value in comparison to previous integrated amplifiers.
New protection circuitry enables the 866D to deliver greater current at max. output without fear of damage to the amplifier’s electronics.
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.
866D – 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
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 – 44 cm W x 39 cm D x 19 cm H
WEIGHT – 24.5 kg
SHIPPING DIMENSIONS – 61 cm H x 59 cm D x 36 cm H
SHIPPING WEIGHT – 29,5 Kg.
To download the 866 control app for Android devices, click here.
To download the 866 control app for Apple devices, click here.