Krell Industries 400cx, 350Mcx, 450Mcx, 700cx Input And Output Connections, Krell Link Connections

Connecting the Full Power Balanced Amplifier to Your System

INPUT AND OUTPUT

CONNECTIONS

Krell recommends using its proprietary Krell CAST system for unparalleled sonic perfor- mance between the Full Power Balanced amplifiers and other CAST-equipped compo- nents and the KPS 25sc Krell Playback Sys- tem.

Full Power Balanced amplifiers also offer bal- anced operation. The circuitry and connections associated with balanced operation not only can minimize sonic loss but also are immune to induced noise, especially for installations using long cables.

A one piece RCA-to-XLR adapter is available from Krell Industries, to allow single-ended oper- ation using the balanced XLR inputs.

The following steps describe how to connect cables to the Full Power Balanced Amplifiers.

1.Neatly arrange and organize wiring to and from the amplifier and all components. Sep- arate AC wires from audio cables to prevent hum or other unwanted noise from being introduced into the system.

2.Connect the Krell CAST cables from your CAST-enabled preamplifier/source compo- nent to the left and right Krell CAST 4-pin bayonet inputs on the amplifier back panel. For balanced operation, connect the inter- connect cable from your preamplifier to the left and right balanced XLR input on the amplifier back panel.

3.Connect the speaker cables to the Full Power Balanced amplifier’s speaker binding posts, located on the amplifier back panel. Speaker binding posts for both stereo and monaural amplifiers accept spade lugs only.

4.Insert the end of the AC mains power cord into the AC wall receptacle.

5.Proceed with Krell Link Connections, if desired, or turn to Amplifier Operation, on page 15.

KRELL LINK CONNECTIONS

Krell Link Remote out/in connectors on the back panel of the Full Power Balanced amplifi- er allow you to synchronize remote control operation for systems that include multiple amplifiers and associated components. When the Krell Link Remote out/in connectors are used, the remote capabilities of the linked com- ponents are controlled from one amplifier or preamplifier, called the control component. The linked components respond to stand-by and operational mode commands from the control component via MIDI cables.

Note

Krell Link uses standard five pin MIDI commu- nication cables, sometimes referred to as MIDI Plus cables. MIDI cables can be purchased from your authorized distributor or dealer, or from an audio supply store.

How to Connect Components through Krell Link

1.Turn all components off, using the back panel power breaker switch. This ensures that the components are synchronized when the MIDI cable is connected.

2.Select the component to be the control com- ponent. The control component must be in plain view for proper remote control opera- tion.

3.Connect one end of the MIDI cable to the Krell Link out connector on the back panel of the component.

Krell Full Power Balanced X Series Power Amplifiers 13