MEASUREMENTS
Sep 10, 2019
4 minutes
—John Atkinson
performed a full set of measurements on one of the Accustic Arts Mono IIs, S/N M2-1JB1258, using my Audio Precision SYS2722 system (see the January 2008 “As We See It”1). I repeated some of the tests on S/N 1259, the sample that Jason Victor Serinus found had developed a hum toward the end of his auditioning. Before doing any testing, I preconditioned the first sample of the Mono II by running it at one-third power into 8 ohms for an hour. At the end of that time the side-mounted heatsinks were hot, at 120.6°F (49.3°C). The top panel was also
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