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Table of Contents
Related Manuals for Krell Industries Theater Amplifier Standard
Summary of Contents for Krell Industries Theater Amplifier Standard
- Page 1 THE LEADER IN AUDIO ENGINEERING...
- Page 2 Krell Industries, Inc., and is restricted for use by Krell Industries, Inc., its subsidiaries, and authorized agents. Multi Amp Throughput™ and Krell Current Mode™ are trademarks of Krell Industries, Inc. All other trademarks and tradenames are registered to their respective companies.
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Page 3: Table Of Contents
UNPACKING PLACEMENT AC Power Guidelines FRONT PANEL DESCRIPTION: THEATER AMPLIFIER STANDARD BACK PANEL DESCRIPTION: THEATER AMPLIFIER STANDARD CONNECTING THE THEATER AMPLIFIER STANDARD TO YOUR SYSTEM Input and Output Connections AMPLIFIER OPERATION On/Off and Operation Using a Dedicated Wall Switch TROUBLESHOOTING SYSTEM NOISE... - Page 4 FIGURE 3 The Theater Amplifier Standard Input Circuit Board Factory Default Settings FIGURE 4 Reconfiguring the Theater Amplifier Standard for MAT Operation FIGURE 5 Reconfiguring the Theater Amplifier Standard for Bridged Operation FIGURE 6 Reconfiguring the Theater Amplifier Standard for Combined MAT...
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Page 5: Introduction
Introduction Thank you for your purchase of the Krell Theater Amplifier Standard Multichannel Amplifier. The Theater Amplifier Standard provides substantial five-channel output power that delivers realistic music reproduction at an exceptional value. The amplifier channels can be customized quickly through a series of switches. Optional system configurations include bridged operation and a multi-power mode using the Multi Amp Throughput (MAT) feature. -
Page 6: Definition Of Terms
Use care when using single-ended connections as the ground connection is made last and broken first. Turn the system off prior to making or breaking single-ended connections. Single-ended connections are not recommended for connections requiring long cable runs. Krell Theater Amplifier Standard... - Page 7 A proprietary Krell circuit topology in which the audio gain stages of a component operate in the current rather than the voltage domain. This unique technology provides the component with exceptional speed and a wide bandwidth. Krell Theater Amplifier Standard...
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Page 8: Unpacking
Krell dealer, distributor, or Krell for assistance. Save all packing materials. If you ship your amplifier in the future, repack the unit in its original packaging to prevent transit damage. See Return Authorization Procedure, on page 29, for more information. Krell Theater Amplifier Standard... -
Page 9: Placement
(5 cm) of clearance above and below the component to provide adequate ventilation. The Theater Amplifier Standard does not require any type of special rack or cabinet for installation. For the dimensions of your amplifier see Specifications , on page 30. -
Page 11: Front Panel Description: Theater Amplifier Standard
The Theater Amplifier Standard front panel provides power on and indicates operating status. 1 Power Button Use this button to switch the Theater Amplifier Standard power between the stand-by and the operational modes and also to switch the 12 VDC output (12 V trigger) on and off. -
Page 13: Back Panel Description: Theater Amplifier Standard
The Theater Amplifier Standard has five channel inputs for output devices with balanced XLR connectors. Single-ended Inputs 5 Inputs 1-5 The Theater Amplifier Standard has five channel inputs for output devices with single- ended RCA connectors. Multichannel Input 6 Multichannel Input The Theater Amplifier Standard has one DB-25 input, for connecting to the DB-25 output of a preamp/processor. - Page 14 (12 V trigger) signals from other Krell components and other devices that incorporate a 12 V trigger. This allows you to turn the Theater Amplifier Standard on and off using a Krell or other component in a custom installation.
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Page 15: Connecting The Theater Amplifier Standard To Your System
When level matching is critical, please keep this gain value in mind. The Theater Amplifier Standard is shipped with shorting pins in the XLR inputs. These pins should remain in the XLR inputs if the amplifier is operating in the single-ended mode. - Page 16 Amplifier Standard into your system: Connect the DB-25 output on your preamp/processor to the DB-25 multichannel input (6) on the back panel of the Theater Amplifier Standard. The DB-25 cable simultaneously transmits audio outputs and Trigger 1 signals from the DB-25 output of the Krell Home Theater Standard Surround Preamp/processor to all inputs and to a 5 VDC (5 Volt trigger) on the Theater Amplifier Standard via the DB-25 input.
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Page 17: Amplifier Operation
USING A DEDICATED WALL SWITCH The Theater Amplifier Standard can also be powered on from an AC wall receptacle with a dedicated switch, rather than from the front panel power button. Please contact your authorized Krell dealer, distributor, or Krell for more information before you connect the Theater Amplifier Standard to a dedicated AC wall outlet with a switch. -
Page 18: Troubleshooting System Noise
When you mix and match high-performance audio components, each with its own ground potential, a low frequency hum may occur in one or all loudspeakers. If this happens when you place the Theater Amplifier Standard into your system, follow these simple troubleshooting steps: 1. -
Page 19: Reconfiguration Options For The Theater Amplifier Standard
Reconfiguration Options for the Theater Amplifier Standard The Theater Amplifier Standard offers a number of options for configuring your amplifier output and is unique in that it allows you to bridge and use Multi Amp Throughput at the same time. -
Page 22: Amplifier Factory Default Settings
4. For input switch bank 4: switch 4 up (on), other switches down (off). 5. For input switch bank 5: switch 5 up (on), other switches down (off). RECONFIGURING THE THEATER AMPLIFIER STANDARD FOR MAT OPERATION Send One Input Signal to All Five Output Channels via Input 1... - Page 23 Not illustrated 1. Push switch 5 up (on) for all input switch banks. 2. Push switches 1, 2, 3, and 4 down (off) for all input switch banks. Connecting the Theater Amplifier Standard Reconfigured for MAT (Scenario 1) IMPORTANT Do not use the multi-channel (DB-25) input if you have reconfigured the Theater Amplifier Standard for MAT operation.
- Page 24 (off). IMPORTANT Make sure all bridging switches are down (off) unless you are bridging amplifier channels. Connecting the Theater Amplifier Standard Reconfigured for MAT (Scenario 2) IMPORTANT Do not use the multichannel (DB-25) input if you have reconfigured the Theater Amplifier Standard for MAT operation.
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Page 26: Reconfiguring The Theater Amplifier Standard For Bridged Operation
3. Push bridge switch up (on) between input switch banks 4 and 5. Note Input 4 is selected in the above example. Connecting the Theater Amplifier Standard Reconfigured for Bridged Operation 1. Connect the cable from your source device to the balanced or single-ended input you have selected to receive the signal. -
Page 28: Reconfiguring The Theater Amplifier Standard For Combined Mat And Bridged Operation
Reconfiguration Options, continued RECONFIGURING THE THEATER AMPLIFIER STANDARD FOR COMBINED MAT AND BRIDGED OPERATION MAT Channels 1, 2, 3 and Bridge Channels 4 and 5 See Figure 6 on page 23 This feature allows you to use MAT and bridging features at the same time. Channels 1, 2, and 3 are connected via MAT, while channels 4 and 5 are bridged. -
Page 29: Example Of A Connection Scenario: Multi-Power Mode
When the Theater Amplifier Standard is reconfigured for MAT, each channel powers an individual loudspeaker, with one Theater Amplifier Standard dedicated to driving outputs to the left loudspeakers and one Theater Amplifier Standard driving outputs to the right loudspeakers. - Page 30 The diagram below illustrates this connection scenario: Patio (R) Kitchen (R) Patio (L) Kitchen (L) — — — — — — — — — Input 1 Input 4 Krell Theater Amplifier Standard...
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Page 31: Questions And Answers
Q. When I connect the amplifier to my system using the single-ended inputs, a loud buzz comes from my loudspeakers. What is it? A. Check that the shorting pins for the Theater Amplifier Standard are inserted into the XLR inputs (the unit is shipped with the pins in place). When using the single-ended inputs, the shorting pins must be inserted between pins 1 and 3 to keep external noise from corrupting the signal. -
Page 32: Warranty
All operational features, functions, and repairs required after the product has been returned to original factory specifications will be specifications and policies are subject charged to the customer, at current parts and labor rates. to change without notification. Krell Theater Amplifier Standard... -
Page 33: Return Authorization Procedure
HOW TO PURCHASE To purchase additional packaging, please contact your authorized ADDITIONAL PACKING Krell dealer, distributor, or the Krell Service Department for assis- tance. SERIAL NUMBER Your Theater Amplifier Standard product serial number is: Krell Theater Amplifier Standard... -
Page 34: Specifications
17.3w x 9.8h x 17.0d in. 43.8w x 24.8h x 43.2d cm WEIGHT SHIPPING 110 lb., 50 kg UNIT ONLY 100 lb., 45.5 kg All operational features, functions, specifications, and policies are subject to change without notification. Krell Theater Amplifier Standard... - Page 36 Krell Industries, Inc. Theater Amplifier 45 Connair Road Standard Orange, CT 06477-3650 USA Multichannel Amplifier TEL 203-799-9954 v 02.0 FAX 203-891-2028 E-MAIL krell@krellonline.com WEBSITE http://www.krellonline.com...