Abbingdon Music Research LS-77 Reference Class - Manual (Page 11)

11
Never use aggresive
or abrasive cleaners!
Section 3 - Care & Maintainance
3.1 Care and maintenance
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
gently removed with a fine furniture brush.
As any form of cloth or foam cover or metal grille interferes significantly with sound reproduction, no grill is
included.
3.2 Running-in the monitors
A newly unpacked pair of AMR professional monitors requires more than 500 hours of running-in or playing to
reach its optimum performance capability. After that period, a short period of playing time before every listening
session will be helpful to ‘warm up’ the monitors.
3.3 Power rating
If you find that your system continuously lacks the necessary sound pressure level for your liking, despite using a
high-quality, high-powered amplifier (> 120W RMS into 8 Ohm) please consider upgrading to one of AMR’s Opti-
Array® configurations (see Appendix B - LS-77 OptiArray) and/or the use of AMR’s Reference Class amplifiers
using active crossover bi-amplification. Be sure to consult your authorised AMR retailer for advice and a demon-
stration.