Page 2 - Multi-channel Amplifier; IMPORTANT SAFETY INSTRUCTIONS
© 2007 by Krell Industries, Inc. All rights reserved P/N 309582-F S –1500 Multi-channel Amplifier Instructions for Use v 07.0 This product is manufactured in the United States of America. Krell ® is a registered trademark of Krell Industries, Inc., and is restricted for use by Krell Industries, Inc....
Page 3 - Contents; Page
Contents Krell S –1500 Multi-channel Amplifier 3 INTRODUCTION 5 DEFINITION OF TERMS 6 UNPACKING 7 PLACEMENT 8 AC Power Guidelines FRONT PANEL DESCRIPTION 10 BACK PANEL DESCRIPTION 11 CONNECTING THE S –1500 AMPLIFIER TO YOUR SYSTEM 13 Input and Output Connections OPERATING THE S –1500 AMPLIFIER 15 On...
Page 4 - FIGURE 1; Illustrations
4 Krell S –1500 Multi-channel Amplifier FIGURE 1 The S –1500 Multi-channel Amplifier Front Panel 9 FIGURE 2 The S –1500 Multi-channel AmplifierBack Panel 9 Illustrations Page
Page 5 - Introduction
Krell S –1500 Multi-channel Amplifier 5 Thank you for your purchase of a Krell S –1500 Multi-channelAmplifier. The S –1500 amplifier is a flexible design that delivers five, six, or seven channels of amplification. All three configurations includeinput and output connections for all seven channels. ...
Page 6 - Definition of Terms
6 Krell S –1500 Multi-channel Amplifier Following are the definitions of key terms used in this owner’s ref-erence. Balanced A symmetrical input or output circuit that has equal impedancefrom both input terminals to a common ground reference point.The industry standard for professional and sound rec...
Page 7 - Unpacking
Unpacking Krell S –1500 Multi-channel Amplifier 7 1. Open the shipping box, and remove the top layer of foam. The following items are visible: 1 S –1500 Multi-channel Amplifier 1 Accessory Kit containing: 1 AC power cord 1 12 VDC output (12 V trigger) cable 1 12A 1/4-inch slow-blow fuse for 100 –120...
Page 8 - Placement
8 Krell S–1500 Multi-channel Amplifier Before you integrate the S –1500 Multi-channel Amplifier into yoursystem, review the following guidelines to choose the location forthe component. This will facilitate a clean, trouble-free installation. The S –1500 amplifier requires at least two inches (5 cm)...
Page 9 - Figure 1 The S –1500 Multi-channel Amplifier Front Panel; Figure 2 The S –1500 Multi-channel Amplifier Back Panel
POWER 1 2 Figure 1 The S –1500 Multi-channel Amplifier Front Panel Power 1 Power Button 2 Stand-by and Power LED Krell S –1500 Multi-channel Amplifier 9 INPUT 1 INPUT 2 INPUT 3 INPUT 4 INPUT 5 INPUT 6 INPUT 7 OUTPUT 1 OUTPUT 2 OUTPUT 3 OUTPUT 4 OUTPUT 5 OUTPUT 6 OUTPUT 7 NO USER SERVICEABLE PARTS IN...
Page 10 - The LED flashes red when the protection circuit is activated.; Front Panel Description
The S –1500 Multi-channel Amplifier front panel provides power onand indicates operating status. 1 Power Button Use this button to switch the S –1500 amplifier power between thestand-by and the operational modes and also to switch the 12 VDCoutput (12 V trigger) on and off. 2 Stand-by and Power LED ...
Page 11 - Back Panel Description; BALANCED INPUTS; 12 VDC Remote Power Out
Back Panel Description See Figure 2 on page 9 The S –1500 Multi-channel Amplifier back panel provides connec-tions for all inputs and outputs, remote connection input and out-put links, and the AC power supply. 3 Inputs 1-7 The S –1500 amplifier has seven channel inputs for output deviceswith balanc...
Page 12 - 12 VDC Remote Power In; Fuseholder; WARNING
Back Panel Description, continued 7 12 VDC Remote Power In The S –1500 amplifier is equipped with an input that receives12 VDC power on/off (12 V trigger) signals from other Krell compo-nents and other devices that incorporate a 12 V trigger. This allowsyou to turn the S –1500 on and off using a Kre...
Page 13 - Connecting the S –1500 Amplifier to Your System; The XLR pin configuration is described below:
Connecting the S –1500 Amplifier to Your System The S –1500 Multi-channel Amplifier is equipped with balancedand single-ended inputs. Krell recommends using balanced interconnect cables. Balancedinterconnect cables not only minimize sonic loss, but are alsoimmune to induced noise, especially with in...
Page 14 - Connect the loudspeaker cables to the S –1500 amplifier chan-; Plug the other end of the AC power cord into the AC wall outlet.
Connecting the S –1500 Amplifier, continued 4. Connect the loudspeaker cables to the S –1500 amplifier chan- nel output binding posts (5) located on the back panel. The S –1500 / 5 uses only outputs 1-5, and has caps on theloudspeaker binding posts of channels 6 and 7. The S –1500 / 6uses outputs 1-...
Page 15 - Operating the S –1500 Amplifier; Plug the other end of the AC power cord into the AC wall outlet.
Operating the S –1500 Amplifier When powering up your system, turn the amplifiers on last. Whenpowering down your system, turn amplifiers off first. The proce-dures for operating the S –1500 Multi-channel Amplifier follow. 1. Plug the AC power cord into the amplifier’s IEC connector (8). 2. Plug the...
Page 16 - Troubleshooting System Noise
Troubleshooting System Noise When you mix and match high-performance audio components,each with its own ground potential, a low frequency hum mayoccur in one or all loudspeakers. If this happens when you placethe S –1500 Multi-channel Amplifier into your system, follow thesesimple troubleshooting st...
Page 17 - Questions and Answers; Operating the S –1500 Amplifier,; Troubleshooting System Noise,; on page 16. If the connections; Connecting
Questions and Answers Q. Should I turn the S –1500 amplifier off (unplug the amplifier)when not playing music? A. No. Leave the S –1500 amplifier in the stand-by mode whennot playing music. The stand-by mode avoids cold starts aswell as minimizes heat output and power consumption. Turnthe amplifier ...
Page 18 - Warranty
Warranty Krell products have a limited warranty. Amplifiers, preamplifiers, preamp/processors, and receivers carry a limited warranty of five years for partsand labor on circuitry. Loudspeakers carry a limited warranty of fiveyears for parts and labor. CD and DVD players carry a limited warrantyof f...
Page 20 - before; SERIAL NUMBER
Return Authorization Procedure If you believe there is a problem with your component, please con-tact your dealer, distributor, or the Krell factory to discuss the prob-lem before you return the component for repair. To expedite service, you may wish to complete and e-mail the Service Request Form i...
Page 21 - Specifications
Specifications S –1500 / 7 S –1500 / 6 S –1500 / 5 FREQUENCY RESPONSE 20 Hz to 20 kHz 20 Hz to 20 kHz 20 Hz to 20 kHz +0, -0.2 dB +0, -0.2 dB +0, -0.2 dB <0.2 Hz to 95 kHz <0.2 Hz to 95 kHz <0.2 Hz to 95 kHz +0 dB, -3 dB +0 dB, -3 dB +0 dB, -3 dB SIGNAL TO NOISE RATIO WIDEBAND, UNWEIGHTED R...
