Audio Research LS3 - User Manual

Advises against rain/moisture, operating with cover removed, defeating ground plug, and improper fuse replacement.

Details the function of GAIN, BALANCE, MODE, INPUT SELECTORS, POWER, MUTE, LED, DIRECT/NORMAL, and MONITOR/SOURCE controls.

Describes the various input and output connectors, including balanced outputs for the LS3B model.

Provides guidance on mounting, ventilation, placement, and rack mounting for optimal performance and safety.

Guides through the initial power-on sequence, connection of sources, and basic adjustments for listening.

Explains how to use the LS3 as a control center for recording signals to a tape deck.

Details automatic and manual muting features to protect amplifiers and speakers from signal transients and warm-up surges.

Explains how to reduce overall gain by 10dB if needed, with instructions to consult dealer or customer service.

Recommends minimal routine service and advises against tampering due to high voltage, referring to authorized technicians.

Provides instructions for cleaning the unit's exterior surfaces using a soft, damp cloth and mild soap.

Outlines warranty conditions, limitations, remedy, duration, and specific clauses for vacuum tubes and demo equipment.

Explains how to obtain warranty service through authorized distributors or directly from the factory.

Lists detailed technical parameters including frequency response, distortion, gain, input/output impedance, power, dimensions, and weight.