Table of Contents
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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.
D.
Installation: Cautions, unit location guidelines, and connection of inputs
and speakers
E.
F.
G.
KRELL,
1
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Related Manuals for Krell Industries Power Amplifier KSA 150 / 250
Summary of Contents for Krell Industries Power Amplifier KSA 150 / 250
- Page 1 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.
- Page 2 A. GENERAL INFORMATION The latest generation of high-resolution source components and speakers places new demands on the power amplifier. The Krell KSA 150 and KSA-250 meet these challenges with fresh design sophistication and long-term value. Both products can drive any speaker with an effortless quality that makes their power seem endless.
- Page 3 protective action exists for a wide range of problematic conditions. Collectively, the protection circuitry is designed to avoid damage caused by other defective components, faulty wiring, mishandling of the system or amplifier failure. Krell is committed to balanced operation in all products. Balanced systems have long been standard in professional audio applications and the same advantages apply to home audio equipment.
- Page 4 D. INSTALLATION 1. CAUTIONS: These are important points of which you should always be aware. Do not connect the power cord into the AC mains before completing the entire installation. The unit must always be turned off while making connections. Krell XLR and custom RCA connectors are made to very exacting standards.
- Page 5 The input that is not connected to the preamplifier may be used as an output to a second amplifier for power bi-amp applications. Before proceeding with such an installation, you should consult your dealer or Krell. The KSA-150 and KSA-250 are shipped with shorting pins in the XLR inputs. These pins must remain in the XLR inputs if the units are to operate in the single- ended mode.
- Page 6 closing. At this pint the amplifier’s outputs are not connected to the speakers. After the protection circuits detect that the unit has completely stabilized, the speaker relays will engage. Another click will be heard at this point. The amplifier is now ready to use. The amplifier will be at temperature and sound its best after approximately 15 minutes.
- Page 7 IMPORTANT NOTES REGARDING PROTECTION CIRCUITRY 1. When the Output Protection circuitry has been engaged, allow at least 20 seconds before turning on the amplifier again. Repeated fast cycling of the On/Off switch can damage the amplifier and void the warranty. 2.
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