Audio Research LS25 - User Manual

Key safety directives including preventing exposure to rain/moisture and not operating with covers removed.

Instructions to save original packaging for future shipments to protect the instrument from damage.

Explains electronic volume adjustment and the gain selector for limiting input levels to prevent overloading.

Decreases right channel volume proportionally to shift sonic image left or right.

Details input selection, power, stereo/mono, input configuration (Bal/SE), and operate/mute switches.

Explains the Operate/Mute LED and the unit's default settings upon initial power-up or after interruptions.

Details input impedance, main output connectors (balanced/single-ended), and record output connectors.

Recommends mounting positions, avoiding stacking, ensuring airflow, and keeping covers installed for safety.

Discusses exhaust fans for enclosed cabinets and general rack mounting considerations for heat and airflow.

Details system startup, shutdown, and using the LS25 as a control center for tape recording operations.

Details the 40-second automatic muting on turn-on and the function of the Operate/Mute switch for manual muting.

Advises on minimal routine service, tube life expectancy, and replacement tube specifications.

Instructions for cleaning the unit and details of the Limited Warranty terms and conditions.

Lists key technical data like frequency response, distortion, gain, impedance, input/output levels, controls, and tube complement.