Input and Output Connections | Krell Industries 400cx, 350Mcx, 700cx

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

700cx, 400cx, 300cx, 750Mcx, 450Mcx, 350Mcx, 700cx, 400cx, 450Mcx, 350Mcx specifications

Krell Industries is renowned for its high-performance audio equipment, particularly its line of powerful amplifiers that deliver premium sound quality. Among these, the 450Mcx, 700cx, 400cx, 350Mcx, and 750Mcx models stand out for their robust capabilities and advanced technologies, making them popular choices for audiophiles.

The 450Mcx is a class AB power amplifier capable of delivering an impressive 450 watts per channel into 8 ohms. This model is equipped with Krell's signature current-mode topology, which ensures a high level of linearity and a dramatic reduction in distortion. With a heavy-duty construction, including a massive power supply, the 450Mcx offers deep bass response and engaging midrange clarity.

Next in line is the 700cx, which pushes boundaries with 700 watts per channel. This amplifier features Krell's Advanced Power Supply (APS) technology, enabling it to maintain stability even under the most demanding speaker loads. The result is explosive dynamics and captivating detail, delivering a listening experience that is both immersive and exhilarating.

The 400cx is designed for versatility, providing 400 watts per channel in a compact form. This model utilizes Krell's patented CAST technology, which minimizes signal degradation, ensuring that the audio signal retains its integrity from input to output. It is ideal for both home theater and stereo applications, allowing users to enjoy a rich sonic palette.

The 350Mcx, while delivering a powerful 350 watts per channel, is designed with a focus on reliability and heat dissipation. The dual-transformer design and sophisticated thermal management system ensure consistent performance, even during prolonged usage. It embodies Krell's commitment to sound fidelity and performance longevity.

The 750Mcx takes performance to the next level with remarkable output capabilities. This amplifier is built with multiple output devices in a high-current configuration, designed to drive even the most challenging loudspeakers. Its refined circuitry contributes to a soundstage that is both wide and deep, enriching the listening experience.

In addition to these models, Krell also offers the 300cx and the 350Mcx, both designed to cater to a variety of audio preferences and configurations. Each unit is meticulously engineered to deliver ultrasensitive dynamics and a transparency that brings recordings to life.

These Krell amplifiers not only emphasize power and performance, but they also showcase luxurious design and durability. The combination of advanced technologies, such as current mode and APS, ensures that users receive a premium audio experience that stands the test of time. Whether for professional use or high-end home listening, Krell amplifiers are truly an investment in quality sound.