WORKING CONDITION: Excellent. All four inputs offer a bold bass sound with plenty of volume on tap. The Bass and Treble controls have a wide swing of cut and boost, and the EQ rocker switches enable enhanced tone shaping. The tubes and speaker in this amp are in great condition and ready to record.

PHYSICAL CONDITION: Very Good. Aside from some discoloration or stains on the front grille, the chassis and valve cage look fantastic, and the speaker, tolex, jacks, pots, and switches are all in top condition. 

Includes Ampeg Plexglass logo for head; no screws

INVENTORY #59074

BRAND: Ampeg

MODEL: B-15N

FUNCTION: Bass Guitar Amplifier

PRODUCT DESCRIPTION: This listing is for a 1977 Ampeg B-15N Fliptop Portaflex Bass Guitar Amplifier. 

The 1977 Ampeg B-15N Portaflex is a later-era iteration of the legendary "flip-top" bass amplifier, valued for its warm, round, and tube-driven tone that defined the sound of recorded bass in the 1960s and '70s. By 1977, the B-15N had evolved from its early 25-watt origins into a slightly more powerful 30-watt unit featuring a Thiele-designed cabinet for improved low-end efficiency.

SPECS:

• Serial # 163773
• Power Output: 30 Watts RMS at 8 ohms.
• Tube Complement:
• • Power Amp: Two 6L6GC tubes.
  • Preamp: Three 6SL7 octal tubes.
  • Rectifier: One 5AR4 tube (restored from earlier solid-state experiments).
• Speaker: CTS 15" Square Magnet
• Channels: Two independent channels, each with a Volume, Treble, and Bass control, plus Ultra High and Ultra Low boost switches.
• Cabinet Design: Features the classic "Flip-Top" mechanism where the amplifier head can be unlatched, flipped over, and stored inside the cabinet for safe transport.

ACCESSORIES INCLUDED: This item comes as seen in photos and does not include any accessories. Includes Ampeg Plexglass logo for head; no screws

UNPACKAGED WEIGHT: 85 lbs.

UNPACKAGED DIMENSIONS: 25" x 15" x 23"