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Preamplifiers — Audio Research LS28SE

Description, images, technical data and specifications

Audio Research LS28SE
Image source — © Audio Research

The LS28SE differs from its predecessor by more precise synchronization of the amplification stages and higher precision of the signal settings. The preamp is an improved version of the LS28 model from the same manufacturer. The new model differs from the standard version with improved elements and proven technologies. For example, gold capacitors were used in the preamp, as in the REF6SE model.

What is it?

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Specifications

  • Model name

    LS28SE

  • Analog inputs (balanced)

    4

  • Analog inputs (single-ended)

    4

  • Analog outputs (balanced)

    3

  • Analog outputs (single-ended)

    2

  • Gain (dBu)

    18.5

  • Input sensitivity (mV)

    N/A

  • Output voltage (V)

    N/A

  • Input impedance (balanced) (Ω)

    100 000

  • Input impedance (single-ended) (Ω)

    50 000

  • Output impedance (balanced) (Ω)

    600

  • Output impedance (single-ended) (Ω)

    300

  • Maximum output level (balanced) (dBu)

    N/A

  • Maximum output level (single-ended) (dBu)

    N/A

  • Volume control range (dBu)

    N/A

  • Frequency response low +/- 3dB (Hz)

    0.4

  • Frequency response high +/- 3dB (Hz)

    200 000

  • Signal to Noise Ratio (SNR, unweighted) (dB)

    N/A

  • Total Harmonic Distortion + Noise (THD+N) (%)

    <0.007%

  • Dimensions (mm)

    480 × 137 × 348

  • Weight (kg)

    7.2

  • Official link

    https://audioresearch.com/new_website/audio-research-ls28se-line-stage/

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