1964 Ampeg B-15N Portaflex Fliptop Vintage Tube Amp Blue Diamond 1x15 CTS

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Mike & Mike's Guitar Bar
Seattle, WA, United States
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About This Listing

Up for sale, a 1964 Ampeg B-15N "Flip-Top" Portaflex tube amplifier in excellent condition and in perfect working order, freshly serviced and ready for studio use. This clean B-15N is an early example with gleaming chrome, blue diamond tolex, a full set of vintage USA-made tubes, and stock CTS 15" speaker

As the amp that defined the Motown bass sound and a must-have for studios worldwide, the B-15N is the undisputed king of vintage bass tone, with a thick, thumpy sound that is round, detailed, and versatile, bringing out the best in your instrument's natural tonal characteristics. The two channels each have a unique voice, with Channel One being a bit more mellow and smooth, while Channel Two has a touch more grit and bite, also making it an excellent choice for guitar (diming this channel out delivers a particularly nice overdriven roar with a humbucker or P-90 equipped instrument). Just given a checkup by our techs here at Mike & Mike's Guitar Bar, this B-15N is ready for stage and studio use.

The circuit features all of the original capacitors and CTS pots which date to the 21st week of 1964. The stock output transformer is intact, with a genuine vintage power transformer furnished by Fliptops. Fitted between the transformers, a new plexiglass Ampeg badge has been installed, illuminating as it should when the amp powers on. A new multi-pin connection between the head and cab has been installed, and the amp retains the original two-prong power cable. The speaker is the original CTS 15" driver with a clean black frame. This ceramic driver sound clear and powerful, keeping low frequencies rich and focused. The original tube chart is intact inside the cab, with the stamped serial number dating to August of 1964.

Cosmetically, this amp is a particularly nice early B-15N, with clean white silkscreen text on the chrome-plated chassis and a full compliment of original knobs. The stock latches are still mounted to the original tray, and the shockmounts which secure the head to the tray are viable. The enclosure shows modest edge wear, particularly on the tray, yet as the photos show, this B-15N would look great in a studio. A new leather handle of the correct style has also been installed.

This item is sold As-Described

This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.

Product Specs

Listeda day ago
ConditionExcellent (Used)
Excellent items are almost entirely free from blemishes and other visual defects and have been played or used with the utmost care.learn more

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