These are fully Active speakers with electronic crossovers and separate MOSFET power amplifiers for for each drive unit, and deliver an outstanding sound quality.
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There are many comments/reviews on the web regarding these loudspeakers, which are much favoured by music professionals.
They are fitted with the SEAS tweeters, as the ATC tweeters were not introduced until 2013-2014
You will see from the photos that the cabinets and grilles are completely free of any blemishes.
2008 ATC SCM50ASL Studio Speakers in mint, excellent condition.