Vintage Tube Amp

Up for sale, a 1975 Ampeg B-15N Portaflex tube amp in good working order with fresh power tubes. The B-15N is one of the most recorded and highly regarded tube bass amp circuits of all time, and this classic four-input vintage model delivers the goods through the original heavy duty CTS 15 speaker. Manufactured in the USA by Ampeg and recently serviced, the amp is powered by a pair of new and properly biased JJ 6L6 power tubes for a robust 30 watts of output. Surprisingly powerful given its modest power, the B-15N excels at a dynamic and detailed tone that can be extremely warm, or distinct and bright. Paired with a Precision Bass, it’s the perfect recipe for Motown thump. A rare version produced for only a few short years with white rocker switches, this Ampeg has a sleek visual appeal. This head has a couple new caps in the power supply and the circuit is otherwise 100% stock. The stock transformers are both present, and the circuit retains the original CTS pots which date to 1975. The faceplate is notably clean, with all of the original black silkscreened graphics intact on the polished aluminum, and all of the original knobs are intact too. Aside from the new pair of power tubes and rectifier, the rest of the tubes are all vintage valves which work as intended and sound great. The fliptop head secures to the cab with stock latches, and the shockmounts the hold the head to the mounting tray are viable as well. The original smooth black tolex and silver sparkle grillcloth is intact, and the original screw-in trolley is also present. There is some staining on the grillcloth, and wear on the cabinet around the edges, but overall, this is a fine example and a gig-worthy amp, freshly retubed and ready to go with an extremely original circuit and stock speaker. Check out our shop “Mike & Mike’s Guitar Bar, ” and please let us know if we can answer any questions! We use double thick boxes, 1″ foam, and industrial 1/2″ bubble wrap to ensure that your amp arrives safely. International orders will be declared as merchandise, and the value of merchandise will be declared as the amount paid. We cannot declare anything as a gift or for a lesser value. The item “1975 Ampeg B-15N Portaflex Fliptop Vintage Bass Tube Amp 1×15, Serviced” is in sale since Thursday, May 23, 2019. This item is in the category “Musical Instruments & Gear\Guitars & Basses\Guitar Amplifiers”. The seller is “mmguitarbar” and is located in Seattle, Washington. This item can be shipped worldwide.

• Number of Speakers: 1
• Model: B-15N
• Country/Region of Manufacture: United States
• Amplifier Technology: Vacuum Tube
• MPN: Does Not Apply
• Compatible Guitar: Bass Amplifier
• Amplifier Type: Combo
• Brand: Ampeg
• Suitable For: Performance