Used Ampeg B15N, 71-72?

Fair condition, no faceplate, blue line wore off. 2 pring cable, original XLR cable- 4 pin

From Reverb-"In 1960, The Ampeg Company, Inc. introduced the first combination amplifier dedicated to the bass guitar: the B-15. Conceived in 1958 by the late legend Jess Oliver (aka that dude who first put reverb into a guitar amp), the B-15 grew up alongside our modern music industry. Like a lot of the popular sewing machines at the time, the B-15 stored inside of itself, as players moving from gig to gig only had to flip over the amp head to get moving. From its early days as a union-provided amp on the Manhattan Bass Club scene to its storied history inside the world’s elite studios, the Fliptop B-15 is iconic and inescapable.

Bass players of every genre and decade have favored the different flavors of the B-15 as a trusty sidekick in some of the most memorable performances in recorded history. Rick Danko used a B-15 with The Band and even used a B-15S on The Last Waltz. Motown fixture and demigod James Jamerson used a B-15 for all of his live performances as well as the majority of his non-Motown sessions in Los Angeles. As Eddie Kramer recounts, John Paul Jones would wheel his B-15 into their Led Zeppelin recording sessions. Hell, even Jimi Hendrix was known to plug into a B-15 or two, like during this performance on Dick Cavett."