All images and text copyrighted and property of Greg Gagliano.

FACTOIDS & TRIVIA

There is little doubt that the most popular amp ever produced by Ampeg was the B-15N. From its introduction in 1960 to its demise in 1980 to its resurrection in the near future by St. Louis Music, the B-15N was successfully used for both recording and live performance. A true testament to its greatness, no other Ampeg enjoyed a production run as long as the B-15N's. At 25 to 30 watts, the B-15N is not a very loud amp, but its very efficient cabinet designs made good use of the available power. The B-15N's sound is a benchmark by which all other bass amps are compared. The bass tones are full, round, and focused. It is even amenable to modern bass techniques such as slapping and tapping. The B-15N pictured here uses a Thiele design cabinet, introduced in 1968, that many players prefer over the other port designs used on previous B-15Ns.

AMPEG B-15N PORTAFLEX AMP (1975)




 Power Amp:
Tube; 2 x 6L6GC, 30 watts RMS @ 8 ohms

 Preamp: Tube; 3 x 6SL7

 Rectifier: Tube; 1 x 5AR4

 Speakers: 1 x 15" Eminence (square ceramic magnet)

 Channels: 2; 2 inputs per channel (Normal, Bright)

 Effects: None

 Controls: Bass, treble, volume, ultra high boost, ultra low boost for each channel

 Dimensions: 24 H x 21 W x 14 D inches

 Weight: 88 lb


















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