Boulder 1110 Preamplifier

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.

Features

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

Specs

1110 Preamplifier
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