Krell Industries 6, 7, 5 manual Connecting the Showcase Amplifier to Your System

Connecting the Showcase Amplifier to Your System

INPUT AND OUTPUT	The Showcase Amplifier is equipped with balanced and
CONNECTIONS	single-ended inputs.
	Krell recommends using balanced interconnect cables. Balanced
	interconnect cables not only can 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 Showcase 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 Showcase 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 (4) or single-ended (5)
	inputs located on the back panel. The balanced inputs use
	three-pin XLR connectors; the single-ended inputs use RCA
	connectors. The Showcase 5 uses only inputs 1 through 5 and
	the Showcase 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.

10 Krell Showcase Amplifier