Troubleshooting System Noise

SECTION SIX

AC grounding becomes critical when connecting high-performance audio compo- nents. When you mix and match high-performance audio components, each with its own ground potential, a low frequency hum may occur in one or both loud- speakers. This often occurs when introducing a new component into a system.

If this happens when you place the Evolution amplifier into your system, follow these simple troubleshooting steps.

Note

During these steps, the back panel power breaker switch remains in the on position.

1.Check that all input and output connections are of sound construction.

2.With the amplifier in stand-by mode, remove the interconnect cables, then turn the amplifier on. If the hum disappears, turn the amplifier into stand-by mode again, and reinsert one of the interconnect cables. Turn the amplifier back on. Repeat this process for each cable.

3.If the hum reappears with one or both interconnect cables reinserted, the cable needs to be checked.

4.If the interconnect cables are sound, you may be experiencing a ground loop. Please contact your authorized Krell dealer, distributor, or Krell for suggestions on how to eliminate the ground loop.

How to Evaluate Amplifier Operation

The amplifiers are protected by a series of non-intrusive circuits that constantly evaluate the amplifier’s operation. This circuitry protects against damaging DC input or output, and short circuits. The protection circuitry in an Evolution amplifier is designed to prevent damage to the amplifiers or loudspeakers caused by other defective components, faulty wiring, system mishandling, or amplifier failure.

Evolution specifications

Krell Industries has established itself as a pioneer in high-performance audio equipment, renowned for delivering unparalleled sound quality and innovative technologies. Founded in 1980, the company quickly became synonymous with premium amplification, earning accolades from audiophiles worldwide. Over the years, Krell has evolved its product lineup to include not only amplifiers but also preamplifiers, digital audio players, and complete home theater systems.

One of the hallmark features of Krell products is their robust build quality. The company employs a strong engineering ethos that prioritizes durability and reliability in all its offerings. The iconic, heavy chassis of Krell components serves not only as a protective shell but also minimizes vibrations, which can adversely affect sound quality. This engineering strategy is evident in their signature line of amplifiers, which utilize high-grade materials and precision craftsmanship to ensure longevity and optimum performance.

Krell has also been at the forefront of technological advancements. The introduction of class A amplification circuitry is one such innovation that has been integral to the company's sound signature, allowing for minimal distortion and a rich, dynamic range. This technology ensures that even the most subtle nuances in music are reproduced with fidelity and clarity.

Moreover, Krell has embraced digital audio, creating DACs (digital-to-analog converters) and streaming devices that support high-resolution audio formats. This commitment to digital excellence reflects the company's understanding of evolving consumer preferences. Many of their devices feature wireless connectivity options, allowing users to stream music seamlessly from various sources without sacrificing audio quality.

In addition, Krell emphasizes user-friendly interfaces and versatility in its designs. Customers can often find features such as programmable presets, remote control functionality, and intuitive navigation systems, making it easier to tailor their listening experience.

Krell Industries’ evolution over the years showcases a dedication to audio fidelity, technological advancement, and stylish design. As the company continues to innovate within the high-end audio landscape, it maintains its reputation as a brand that audiophiles can trust, delivering exceptional sound experiences that stand the test of time.