Ampeg B-15 Features:, Table of Contents:, Introduction

• 96 lb / 43.5 kg w/dolly

4

• 4” voice coil

• 109 oz ceramic magnet

• Aluminum dust cover

• External amplifier out

• Removable dolly with casters

• Custom-designed 15” US-made Eminence driver

• Selectable bias modes for ultimate tone control

• 1964 – cathode bias (25W @ 4 or 8 )

• 1966 – fixed bias (30W @ 4 or 8 )

• High-grade new and N.O.S. tubes

• Preamp – 3 x 6SL7

(N.O.S. JAN Philips ECG 6188)

• Rectifier – 1 x 5AR4 (GZ34S)

• Power amp – 2 x 6L6GC

• Legendary Baxandall bass/treble tone stack on both channels

•

Heritage B-15 Bass Amplifier

Features:		Table of Contents:
• Hand-built in the U.S.A.		Important Safety Instructions		2
• Limited edition production		Introduction / Features		3
•	Only 50 units available	Heritage B-15 Front Panel		5
•	Numbered and matched heads/cabs	Heritage B-15	Rear Panel	6
• Classic Ampeg flip-top design		Important Information About Tubes		7
•	Chrome-plated chassis	Heritage B-15	Block Diagram	10
•	Rugged cabinets made with Baltic	Heritage B-15	Specifications	11
	birch and poplar	Heritage B-15	Service Information	12

•Legendary double-baffle cabinet design delivers classic tone

•Two distinct, hand-wired preamp circuits

•Channel 1 – 1964 (B-15NC)

•Channel 2 – 1966 (B-15NF)

Introduction

Hand-built and hand-wired in the U.S., the Ampeg Heritage B-15 delivers legendary tone in a design that truly lives up to the iconic standard set by inventor Jess Oliver 50 years ago. The Heritage B-15 features circuit paths of both a 1964 and 1966 B-15, including classic Baxandall EQ controls and premium 6SL7 octal preamp tubes along with a bias switch, recreating each years’ distinctive bias methodology.

The extremely high-quality flip-top cabinet

Dual inputs per channel (0 dB and –15 dB) features the legendary double-baffle design and houses a highly-researched, custom-

designed 15” Eminence driver. The Heritage B-15 is no mere tribute; it meets and exceeds the performance, look and tone of the legendary original, down to each and every component.

In order to get the most out of the Heritage B-15, please read this manual before you begin playing.

• Dimensions (H x W x D): 27” x 21” x 14”

w/dolly

And thank you for choosing Ampeg.