What is it that makes the 1110 preamplifier so special? It is something rare, an overachiever, a unique combination of reference-level performance and compact, convenient design. It is at once familiar in size and shape and yet completely new in aesthetic design detail. Perhaps what makes it so special is that it takes such amazing sight, sound, use, and feel and packs them all into a single chassis. It is the perfect mix of traditional function and cutting-edge technology, earning more than 10 international product awards from media around the world.

It is, after all, a Boulder, and every Boulder is special.


  • Five pairs of programmable, differentially-balanced inputs

  • Balanced version of Boulder's own analog volume control, descended from the 3010 Preamplifier, for superior clarity and noise elimination

  • Each input can be configured for Theater Mode when integrated into home cinema systems

  • Large, easy-to-read, LCD display

  • Available IP control connection for simple use connection to home automation systems

  • Unique front panel design displays the topographical map of Flagstaff Mountain, located near Boulder, Colorado

  • Full surface-mount circuit board architecture manufactured on Boulder's own precision pick-and-place machine

  • Comprehensive setup and options programming for all inputs and preamplifier functions

  • Automated online software management for worry-free updating

  • Boulder's own 983 gain stage means excellent buffering and current drive for long cable runs

  • Embedded ARM processor controls all preamplifier functions and setup options

  • Dual-mono audio boards isolate left and right channels for perfect stereo separation in a single-chassis design


  • Input Connections

    5 pairs balanced line level

  • Output Connections

    2 pairs balanced main, 1 pair balanced auxiliary

  • Volume

    100 dB range in 0.5 dB steps (200 steps) or 1.0 dB steps (100 steps)

  • Maximum Input Level

    6.0 Vrms

  • Maximum Output Level

    14.0 Vrms

  • THD+N, 2V Output, 20 Hz - 20 kHz

    0.0015% (-96.5 dB)

  • Output Loaded with 150 ohms

    Less than 1 dB distortion change, 20 - 10 kHz

  • Maximum Voltage Gain

    20 dB

  • Auxiliary Path Gain, Balanced Output

    8.5 dB balanced
    2.5 dB unbalanced

  • Frequency Response, 20 Hz - 20 kHz

    +0.00, -0.03 dB

  • Frequency Response, -3 dB at

    0.02 Hz and 250 kHz

  • Clip to Noise Ratio

    118 dB

  • Crosstalk, L to R or R to L

    -101 dB or better, 20 Hz to 20 kHz

  • Crosstalk, Adjacent Inputs

    -115 dB or better, 20 Hz to 20 kHz

  • Input Impedance

    100k ohms, balanced
    50k ohms, unbalanced

  • Output Impedance

    100 ohms, balanced
    50 ohms, unbalanced

  • Control System

    IP (Ethernet), IR, Boulder Net

  • Weight

    36 lbs. (16.3 kg),
    Shipping: 49 lbs. (22.2 kg)

  • Power Requirements

    100, 120, 220-240 VAC, 50-60 Hz

  • Power Consumption

    75W maximum