The Boulder 1110 stereo preamplifier is the second release in the new 1100 Series, following the US company’s release earlier this year of the 1160 stereo power amplifier.
Rich Maez, of Boulder, told Australian Hi-Fi Magazine that the 1100 Series is a substantial advancement over the previous 1000 Series. ‘Vast improvements have been made in sound quality through the use of better ground paths, thermal management, circuit topology, and lowering of the static noise floor,’ he said. ‘The increased use of surface-mount technology has also yielded improvements in noise radiation, propagation delay, parasitic capacitance and the elimination of lead inductance in selected circuits. It also offers improvements in unit-to-unit quality and consistency with the added benefit of long-term reliability.

The new 1110 has five sets of balanced (via XLR) line-level inputs plus fixed line-level auxiliary outputs. The volume control is an adaptation of the CMOS-actuated stepped volume control used on Boulder’s 3010 preamplifier and is fully-balanced to reduce noise, increase resolution, and eliminate step noise. The control can be programmed for different step resolutions, start-up level, maximum output level, and volume scale. New on the 1110 is a 64-bit, multi-core ARM (Advanced RISC Machine) processor that controls all functions including management of turn-on/turn-off sequences, input selection and user interface, error notification, display driver, web page generation, and HTML- or IP-based external control. ‘The ARM processor also enables the use of Boulder Net, an IP-based unit-to-unit detection, system layout, control, and communication architecture available to external control systems such as Savant or Crestron and application-based control systems,’ said Maez. ‘For units that are network connected, an HTML setup and control page is available by simply entering the preamplifier’s IP address into a browser and if connected to the Internet, the 1110 will announce when software updates are available and will automatically download and install those updates when instructed.’

The most obvious external change when comparing the new 1110 with the older 1000 are the use of softer, rounded edges that include radii and curves and the fact that the front panel features a reproduction of the topographical map of Flagstaff Mountain, a geographical feature near Boulder’s headquarters in Colorado. The front panel display is a full-colour LCD type that shows all current function settings and is also used when setting up the 1110. Available in Australia now through Absolute Hi End, the Boulder 1110 preamplifier retails for $31,500.

Manufacturer’s Specifications: Boulder 1110 Preamplifier:
Maximum Input Level: 7V
Maximum Output Level: 28V
THD+N: 0.0008%
Maximum Voltage Gain: 20dB
Volume Steps (0.5dB, 1.0dB): ±0.01 dB 
Frequency Resp: 0.02Hz–300kHz –3dB
Input Impedance: 333kΩ
Output Impedance: 100Ω
Dimensions (WDH): 457×389×146mm
Weight: 6.3 kg
Australian RRP: $31,500

For further information, please contact Absolute HiEnd