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KRELL,
THE LEADER IN AUDIO ENGINNERING
KSA – 150 / 250 OWNER’S MANUAL
INTRODUCTION
Thank you for your purchase of the new Krell KSA-150 or KSA-250 Power
amplifier. The KSA-150 and 250 represent the absolute latest evolution in
amplifier technology. They have many innovative design features in addition to
Krell refined Class A power and direct-coupled circuitry from input to output.
There are several aspects of the KSA-150 and KSA-250’s operation that require
your special attention before installation. Because of the high level of
performance capabilities of the KSA-150 and 250, careful placement and
installation are crucial. Your thorough understanding of the operation and
interrelation of your new amplifier with your audio system will ensure its
maximum performance and long life.
ABOUT THE OWNER’S MANUAL
The Owner’s Manual is divided into various groups of information. The purpose
of the manual is to familiarize you with the product and guide you through its set-
up, installation and operation in a logical progression.
TABLE OF CONTENTS
A. General Information: A description of the basic design and
performance features of the KSA-150 and KSA-250
B. Power Considerations: Your new power amplifier and its electrical
requirements
C. Unpacking
D. Installation: Cautions, unit location guidelines, and connection of inputs
and speakers
E. Operation
F. Protection Circuitry
G. Warranty and Service Information