1967 Ampeg B-15N Portaflex Tube Amplifier Flip-Top 

Located At IVG Sherman Oaks

In Good Overall Condition (Please See Photos)

Surface Shows Normal Cosmetic Wear, Such As Various Small Nicks, Marks, And Scratches Throughout

Tested And Functional, Pots Are Scratchy In Some Positions

Several Electronic Modifications Including:

Replaced Schumacher Power Transformer Dating To 1960, Chassis Has Been Slightly Enlarged To Accommodate

Replaced Output Transformer Dates To 7th Week Of 1967

Preamp Tubes And Sockets Modified To 12AX7

Rectifier Tube Modified To 5U4GB

Currently Running Vintage GE Preamp, And RCA Black Plate 6L6 Power Tubes And Rectifier

Re-Wired On Non-Original Circuit Board With Some Non-Original Wire

Polarity Switch Has Been Disconnected

Added Choke Transformer

Original CTS Speaker Dates To 39th Week Of 1967

2-Prong Power Cord

Comes As Shown, Available For Local Pickup In Our Store

Please Note: We Do Not Offer Shipping On Amps Through This Site, Please Contact Our Store Directly For Shipping Info

The 1967 Ampeg B-15N Portaflex is a legendary all-tube bass amplifier renowned for its warm, rich tone and innovative flip-top cabinet design. Delivering approximately 30 watts through a single 15-inch speaker, the B-15N became a studio favorite thanks to its deep low end, smooth midrange, and exceptional recording character. Finished in Ampeg’s distinctive blue-check covering and built in Linden, New Jersey, the 1967 model represents one of the most sought-after versions of the classic Portaflex series, prized by bassists, collectors, and recording engineers alike.