Tweed up your tone! The 12AY7 is famous for its use as stock tube in the legendary tweed amps of the late 1950s. This premium selected TAD 12AY7 is a great choice as an input tube in any tweed, classic low gain or non-master amplifier. It will also bring more warmth and musicality to modern amps while improving the tonal depth of the midrange and providing a sweet top end. With less gain than a 12AX7, you will have more headroom and more control over your tone due to its wider sweet spot.