Ampeg Portaflex Series User Manual

2
PF-20T / PF-50T Bass Guitar Amplifier
What’s in the Box
Ampeg PF-20T or PF-50T Amplier, Power Cable, Quick Start Guide.
Introduction
The Ampeg Portaex
®
series bass ampliers brought legendary Ampeg tone in a
powerful, lightweight design that bass players around the world, from beginners to
professionals, have made the most popular bass ampliers in history. The PF-20T and
PF-50T ampliers deliver legendary Ampeg all-tube tone and warmth, in the same
portable, powerful, and aordable design.
Designed to be compact and match perfectly with existing Portaex cabinets, the
PF-20T and PF-50T are perfect for small to medium sized shows, studio recording, or
even a rehearsal studio.
Like all Ampeg products, your Portaex series bass amplier is designed by musicians
and built using only the best of components. Each amp is tested to conrm that it meets
our specications, and we believe that this amp is the absolute best that it can be.
In order to get the most out of your new amp, we recommend fully reading and
understanding this Owner’s Manual, as well as the Important Safety Instructions included
with your Portaex amplier, before you begin playing. Best of luck in all of your musical
endeavors!
And thank you for choosing Ampeg.
TABLE OF CONTENTS
What’s in the Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
PF-20T / PF-50T Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Front Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Rear Panel Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Suggested Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Favorite Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Changing the Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Setting Tube Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PF-20T Technical Specications & Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 12
PF-50T Technical Specications & Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 13
Warranty and Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Ampeg Portaflex Series Specifications

General

Brand	Ampeg
Model	Portaflex Series
Category	Amplifier
Language	English