1010

Stereo Preamplifier

Every high-performance sound system needs a preamplifier for control. Ideally, this preamp would be completely programmable and there would be no loss of realism when asked to do its job. It would also address every technical and connection issue. Just like the 1010 Stereo Preamplifier.

Features

  • Complete microprocessor control of input switching, volume control, and programmable settings

  • Four pairs of analog inputs; three pairs for line-level sources and one pair for phono (both MC and MM)

  • Chassis panels interlock with dovetail joints, a process usually reserved for fine furniture

  • Boulder's own precision-stepped, analog volume control for superior clarity

  • Surface-mount circuit board design means better space efficiency with reduced connection resistance and inductance

  • Boulder 983 gain stages for excellent resolution and current drive into long cable runs

  • Two pairs of analog outputs for use in bi-amplified systems

  • Full balanced inputs and output connections

  • Stainless steel buttons and volume disk are hand-polished in a nine step process for a mirror finish to match the display window

Specs

1010
Stereo Preamplifier
  • Input Connections

    3 pairs balanced line level, 1 pair MC/MM phono

  • Output Connections

    2 pairs balanced main, 1 pair balanced record

  • Phono Gain Settings

    High (MC) / Low (MM)

  • Volume

    100 dB range in 0.5 dB steps (200 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, Line Input

    20 dB

  • Maximum Voltage Gain, Phono (MM)

    60 dB

  • Maximum Voltage Gain, Phono (MC)

    80 dB

  • Record Path Gain, Balanced Output

    8.5 dB

  • Frequency Response, 20 Hz - 20 kHz

    +0.00, -0.03 dB

  • Frequency Response, - 3dB 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

    Boulder Link

  • Weight

    35 lbs. (15.9 kg),
    Shipping: 49 lbs. (22.2 kg)

  • Power Requirements

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

  • Power Consumption

    75W maximum