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Audio Research LS-2

Hybrid Vacuum Tube/FET Stereo Line Pre Amplifier (1991-95)

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Audio Research LS-2

Description

Audio Research engineers were given a simple mission in designing the LS2: create the best line-stage preamplifier ever, but skip the frills. The remarkably successful outcome also happens to be affordable.

Approaching the theoretic ideal of a straight wire with gain, the LS2 maintains optimal signal purity by offering only the most essential control functions: a precision four section, 41 detent attenuator and a gold contact input selector switch.

For ultimate sonic fidelity, the LS2 owner may select the Direct Gain Path - a separate set of inputs which routes the incoming source signal directly to the attenuator and on to the gain stage.

Additional controls include manual muting (complementing a sophisticated auto muting circuit) and switch defeatable tape outputs, used to prevent adverse loading effects when some tape recorders are connected to the tape outputs.

Like other Audio Research pre amplifiers and line stages, the LS2 is a true Class-A circuit, capable of swinging 50 volts at the output, peak-to-peak. It provides 18dB of overall gain - perfect for today's line level sources, and ideal for use with the Audio Research PH1 phono preamplifier.

Specifications

  • Frequency response: 0.1Hz to 300kHz

    Total harmonic distortion: 0.01%

    Signal to noise ratio: 100dB (line)

    Output: 2V (Pre out)

    Valve complement: 1 x 6DJ8/ECC88

    Dimensions: 480 x 134 x 260mm

    Weight: 5.9kg

    Year: 1991

  • Frequency response: 0.1Hz to 300kHz

    Total harmonic distortion: 0.01%

    Signal to noise ratio: 100dB (line)

    Output: 2V (Pre out)

    Valve complement: 1 x 6DJ8/ECC88

    Dimensions: 480 x 134 x 260mm

    Weight: 6kg

    Year: 1991

Downloads

Comments

Technical Manual for Audio Research LS2B

Gracias por el servicio que presetan ya que de lo contrario no podria reparar mi aparato.
Saludos

thank

so much

ARC LS2B Manual - English

Hi
Just bought one of these, is there an english version?
Thanks
Phil
Nova Scotia, Canada

This website is not affiliated with or sponsored by Audio Research. To purchase LS-2/LS-2 mkII/LS-2B mkII spares or accessories, please contact the company via their website or visit an authorised retailer.