Quote:
Originally Posted by BMWCCA1
I hope you found one in good working order. They seem to have quite a high failure rate. Instead, decades ago, I went with US-made Crown "D" and more recently "PS" series amps and a Studio Reference-II. I have several other US-made amps (Soundcraftsmen, Carver, JBL/Urei, Adcom, etc) but the Crowns still get the most use.
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The Hafler is in great shape. I only had to replace a thermal link that was flaky thankfully the driver boards are updated units with both Bias and idle current adjust. the true simplicity of these circuit makes them a joy to work on. I really liked the Crowns when they came into the shop. As nice as the Carvers where I dreaded working on them when they had a failure they became so unstable they tended to go up in balls of fire and if you missed one bad part they would eat all the parts right in fount of your eyes in a spectacular manner