Krell Industries S1500 manual Connecting the S-1500 Amplifier to Your System

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Connecting the S–1500 Amplifier to Your System

INPUT AND OUTPUT

The S–1500 Multi-channel Amplifier is equipped with balanced

CONNECTIONS

and single-ended inputs.

 

Krell recommends using balanced interconnect cables. Balanced

 

interconnect cables not only minimize sonic loss, but are also

 

immune to induced noise, especially with installations using long

 

cables. Balanced connections have 6 dB more gain than single-

 

ended connections. When level matching is critical, please keep

 

this gain value in mind.

 

The S–1500 amplifier 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. When the shorting pin is

 

inserted, pins 1 (lower left) and 3 (top) are shorted together.

 

Remove the shorting pins to connect the amplifier for balanced

 

operation.

 

The XLR pin configuration is described below:

 

Pin 1 Shield (ground)

 

Pin 2 Non-inverting (hot) (0°)

 

Pin 3 Inverting (cold) (180°)

 

Follow these steps to connect the S–1500 amplifier to your sys-

 

tem.

 

1. Make sure all power sources and components are off before

 

connecting inputs and outputs.

 

2. Neatly organize the wiring between the amplifier and all system

 

components. Separate AC wires from audio cables to prevent

 

hum or other unwanted noise from being introduced into the

 

system.

 

3. Connect the interconnect cables from your output device to

 

the amplifier inputs using the balanced (3) or single-ended (4)

 

inputs located on the back panel. The balanced inputs use

 

three-pin XLR connectors; the single-ended inputs use RCA

 

connectors. The S–1500 / 5 uses only inputs 1 through 5 and

 

the S–1500 / 6 uses inputs 1 through 6.

 

 

IMPORTANT

Use only one input to each amplifier channel at a time. You may use

 

the balanced inputs for some of the amplifier channels and the sin-

 

gle-ended inputs for the remaining channels.

Krell S–1500 Multi-channel Amplifier

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Contents Instructions for USE Contact Information 1500Contents Illustrations Introduction Input and Output Definition of TermsConnections OperationUnpacking AC Power Guidelines PlacementS-1500 Multi-channel Amplifier Front Panel Stand-by and Power LED Power ButtonFront Panel Description Back Panel Description Power VDC Remote PowerIEC Connector FuseholderS-1500 / 6 uses inputs 1 through Connecting the S-1500 Amplifier to Your SystemAmplifier, on the next ON/OFF Operation Operating the S-1500 AmplifierTroubleshooting System Noise Questions and Answers Warranty Warranty Serial Number Accessing the Service Request FormDampening Factor SpecificationsPower Consumption 1500

S1500 specifications

Krell Industries is renowned for its commitment to high-performance audio equipment, and the S1500 is a notable addition to their lineup of amplifiers. The Krell S1500 is a powerful, flexible, and highly efficient multi-channel amplifier designed primarily for home theater and sophisticated audio setups. With a robust power output of 150 watts per channel into 8 ohms and an impressive capability to drive even lower impedances, the S1500 ensures dynamic audio reproduction that is suitable for various applications.

One of the standout features of the S1500 is its Class A/B amplifier topology. This design combines the benefits of both Class A and Class B amplification, delivering clear and accurate sound reproduction while offering high efficiency. Krell has engineered the S1500 with sophisticated thermal management systems, ensuring that the amplifier runs cool, even during long listening sessions or demanding audio playback scenarios.

The S1500 employs advanced circuit topologies that minimize distortion and enhance signal integrity. This results in pristine audio quality, capable of handling the delicacy of classical pieces as well as the demands of high-action films. Krell’s proprietary technologies, such as the Krell Current Mode, maximize the amplifier's performance by ensuring that it can respond instantaneously to changes in the audio signal, which is crucial for dynamic sound reproduction.

Connectivity on the S1500 is generous, featuring balanced and unbalanced inputs to cater to a variety of audio sources. This flexibility allows the amplifier to integrate seamlessly into any high-end audio or home theater system. Additionally, the amplifier includes extensive protection circuitry to safeguard against short circuits, overheating, and overload conditions, contributing to its durability and reliability.

The design aesthetic of the S1500 reflects Krell's commitment to both form and function, with a sleek, modern chassis that complements any audio setup. The amplifier also features a user-friendly front panel that provides access to status indicators and controls, making it easy for users to operate.

In summary, the Krell Industries S1500 is a meticulously designed multi-channel amplifier that combines advanced technologies with robust power output, ensuring an unparalleled listening experience. Its exceptional audio fidelity, smart thermal management, and extensive connectivity options make it a top choice for audiophiles and home theater enthusiasts alike. Whether for music or movies, the S1500 stands as a testament to Krell’s legacy of excellence in audio engineering.
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