Questions and Answers

Q. When I turn up the volume on the KRC-HR, a loud hum is present from the

loudspeakers. What could this be?

Ao Hum can be caused by several different disturbances. Check to make sure that all of the cables, (in and out of the KRC-HR) are sound and making

proper contact. Make sure that there are no power supplies or hum inducing components on top of or directly below the KRC-HR.

You could also be experiencing a ground loop in the system. Put a 3-prong to 2-prong AC adaptor, (cheater plug), on the KRC-HRpower cord. The hum

should go away. You may also need to float ground on other system components, if the hum remains. Please contact your dealer or the product

manufacturer before a non-KRELL component's ground is lifted. Remember

to always keep at least one component grounded. If these suggestions do not lead to a solution, please consult your dealer or KRELL.

Q. Can the KRC-HRbe used to control more than one system?

A. Yes, the KRC-HRhas both single-ended and balanced outputs that can be

used simultaneously to control two different systems, but both systems will play from the same input, at identical volume settings.

Q. When I select the B-1 input on the KRC-HR,one channel seems to have less gain than the other. Is something wrong with the preamp?

A. Probably not. The balanced input or output internal cable terminals could

be attached incorrectly. Locate the channel that appears to have less gain. Switch the cable connected to that channel's input to the other channel and vice versa, to determine whether a cable is defective. If there is no difference in level, do the same thing at the output of the KRC-HR.If the problem is not the cable, check to make sure that the input and output connections

are connected at the correct locations on the preamp. There should be no

LEDs illuminated in the Balance control section of the front panel (indicating a level imbalance).

KRC-HR specifications

Krell Industries, a renowned name in high-end audio, has made significant contributions to the advancement of audio technology with their KRC-HR preamplifier. The KRC-HR is a stunning combination of innovative engineering, astute design, and exceptional sound performance, which makes it a coveted piece for audiophiles.

One of the main features of the KRC-HR is its fully balanced differential circuit design. This configuration helps in minimizing noise and crosstalk, which are common issues in traditional audio setups. By employing a dual differential topology, Krell can achieve a remarkable reduction in distortion while maintaining a high signal-to-noise ratio. As a result, it delivers a pristine audio experience that reveals every nuance of a recording.

The KRC-HR is outfitted with advanced technologies that elevate its performance. Krell's proprietary CAST (Current Mode Amplification) technology is utilized in this preamplifier, allowing for superior dynamic range and improved transient response. This technology facilitates seamless signal transfer and ensures that dynamics remain intact, whether playing soft passages or powerful crescendos. Furthermore, the KRC-HR is equipped with a sophisticated power supply that supports its demanding operational requirements, ensuring a stable and clean power source for optimal performance.

Another key characteristic of the KRC-HR is its versatile input options. The preamplifier includes multiple line-level inputs, allowing users to connect various sources while maintaining ultimate sound integrity. Additionally, it features inputs for both balanced and unbalanced connections, providing flexibility based on the user's existing audio equipment.

The physical design of the KRC-HR is as impressive as its technical specifications. The chassis is meticulously crafted to minimize resonance and vibration, which can adversely affect sound quality. The sleek, modern aesthetics reflect Krell's commitment to excellence and design innovation, making it a visually striking centerpiece in any audio setup.

In summary, the Krell Industries KRC-HR preamplifier stands as a testament to the company's dedication to delivering unparalleled audio performance. With its fully balanced differential circuit, CAST technology, versatile inputs, and robust build quality, the KRC-HR enables audiophiles to experience their music in the most authentic and immersive manner possible. For those seeking an exceptional audio experience, the KRC-HR is an outstanding choice that harmonizes cutting-edge technology with exquisite sound quality.