As one of the oldest of Maestro's Echoplex series, the EP-2, though not as famous as the following EP-3, is one of the most sought-after models. Using vacuum tubes, as well as its significance in the history of music gear, sets the EP-2 squarely in this category. Manufactured only in the early to mid '60s, the EP-2 (along with the original EP-1) is considered by many to be the best of the bunch due to its tubes, though they are infamous for being difficult to service. Regardless, that doesn't diminish the importance or value of Maestro's Echoplex EP-2.