Classic Rewind: Humminbird's legacyBetween 1979 and 1991, the official sonars used in the Bassmaster Classic were made by Humminbird. One of the Classic's longest sponsors started an electronics revolution that redefined now bass were caught offshore.
Source: Classic Rewind: Humminbird's legacy (https://www.bassmaster.com/news/classic-rewind-humminbird-s-legacy)
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