Boulder has released its 1108 phono preamplifier, which replaces the old 1108 and slots into Boulder’s line-up between the 508 and the 2108. (Click on image to enlarge.)

Although the amplifier looks different, because its cosmetics have been redesigned to match the other components in Boulder’s 1100 Series, and there have been some internal changes, most significantly a newly designed logic control system and a new power supply, the new 1108 has the same features as the previous model, including two inputs, two outputs, automatic servo null of d.c., four different phono equalisation options (RIAA, EMI,  London/Decca and Columbia), a high-pass filter to eliminate low-frequency noise, and two gain options: 70dB (for low-output cartridges) and 44dB (for high-output cartridges).

Because of the recent revisions and success of the 1100 Series, the last remaining component to be redesigned was the 1008 phono preamplifier, whose appearance was a holdover from the previous 1000 Series,’ said Boris Granovsky, of Absolute HiEnd, which distributes Boulder in Australia. ‘The internal changes bring the 1108 up-to-date technologically, while the modernised front panel and casework, with the rounded corners and topographical map on the front panel bring uniformity to the cosmetic appearance, along with the LED colours and the button layout.’

The updated logic control prevents microprocessor noise from being picked up by the high-gain stages, while to address a problem in the previous 1008 with power supply noise, Boulder has increased the operating efficiency of the power supply to reduce noise, and also pushed the remaining supply noise outside the audio band.

Manufacturer’s Specifications: Boulder 1108 Phono Preamplifier

Frequency response: 20Hz–20kHz ±0.1dB
Channel separation: >100dB (20Hz–20kHz)
THD: 0.01%
Noise (MC): 98nV
Maximum Output: 16V
Input Impedance (MC): 1kΩ,
Input Impedance (MM): 47kΩ
Gain at 1kHz: 70dB (MC); 44dB (MM).
Dimensions (WHD): 458×145×403mm
Weight: 14.6kg
Price: $28,500 (RRP)

For more information, contact Absolute HiEnd