5.1 Care and maintenance
To maintain the aesthetic quality of the LS-77 Reference Class Professional Monitors for the long term, placing them into a very warm, very cold, or very humid environment should be avoided. Direct sunlight or excessive brightness can affect the drivers but will have no effect on the Aluminum Enclosure..
The cabinet and other plain parts should be cleaned with a soft dry or slightly damp cloth. Please avoid any aggressive cleaning fluids or abrasive cleaners. Dust on the woofer diaphragms or the tweeters waveguide may be removed with a fine furniture brush.
For safety reasons, please switch off all the components of your system when cleaning any of these components. As any form of cloth or foam cover or metal grille interferes significantly with sound reproduction, no grill is included.
All materials used by AMR are integrated into the LS-77 Reference Class Professional Monitors with exceptional care. By taking care of your LS-77 Reference Class Professional Monitors, you will preserve the finish and build quality for a very long time.
5.2 Running-in the loudspeakers
The moving parts of a newly manufactured LS-77 Reference Class Professional Monitors have been acoustically checked after production, but nevertheless are not as flexible as they need to be for optimum performance results to be realised. The higher the quality of any driver system, the more demanding the loudspeaker will be regarding time for running-in the system. A newly unpacked pair of AMR speakers therefore requires several weeks of running in or playing to reach its optimum performance capability. After that period, a couple of minutes before every listening session will be helpful to ‘warm up’ the loudspeakers.