Re Break-in: my 300 and 1800 have passed 350 hours. The improvement since 150 hours has been striking. Day by day the image continues to open up. Very impressive.
(Currently in a project to hear all of Haydn in order of composition, so am using the system regularly while Core does its break-in.)
Frank
(Audio Research REF 6, GS150, plus Vandersteen 5Acarbons)