The Ampeg B-12-XY is a rare 50-watt Portaflex combo from the mid-1960s. The amp is known to have lush pitch-shifting vibrato, and deep reverb. Featuring a 12 speaker with an added high-frequency horn, the B-12-XY delivers warm bass with clarity and crisp high-end. Powered by 7027A output tubes and housed in Ampeg’s signature blue-check covering, it stands out as both a functional stage amp and a collector-grade piece of vintage Ampeg history.
This example is in solid condition, showing the kind of honest wear you’d expect from a well-loved vintage amp. It retains its original capacitors and resistors—an appealing detail for collectors seeking originality. For a player planning to use it regularly, a routine service with fresh components could be considered, but as it stands, it’s a great piece of Ampeg history.
