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The rotary knob on the front panel does not directly control the volume. Instead, it controls circuitry that does so with greater fidelity and precision than traditional volume potentiometers could ever achieve.

Since the volume control circuitry is under software control, it is possible to customize its behavior under various conditions. To better understand why this is so valuable, consider two scenarios:

Person A places a high value on precision in achieving exactly the volume setting that makes the music most realistic; being able to easily change volume setting by a fraction of a decibel is critical to his enjoyment of the system.

Person B just wants to jump easily from low volumes to a reasonable listening level, and is less concerned with the finer points of precision than with getting what he wants with a quick twist of the knob.

You can see the problem in these scenarios: Person A wants extremely fine gradations on the volume control, which will require many rotations to go from extremely low settings to normal listening levels; Person B wants to get from one to the other with a “quick twist” of the knob, requiring coarse gradations in order to cover so much range in so little space. What happens when Persons A and B live in the same house? Or if Person C wants to have both, depending on their mood at the moment? (In fact, most of us are probably like Person C.)

Classé solves this dilemma by altering the response of the volume control, based on several factors.

Since it is rare to listen at extremely low (barely audible) volumes, the low range adjustment of the volume control allows for faster response to knob input when the volume setting values are low. When activated, you will get from extremely low to middle volume control settings a bit faster than you would otherwise.

This effect can be subtle, and may not even be desirable when the speakers used have extremely high sensitivity (since this results in using the lowest part of the range more than you would otherwise).

The most significant factor in the perceived responsiveness of the volume control is the speed at which the knob is being turned. We all naturally tend to move volume knobs more quickly when we need to make a bigger change, and we tend to slow down as we approach our desired volume. Thus, if the CAP-2100 sees the knob moving relatively quickly, it uses coarse steps to effectively accelerate the action of the circuitry. As the knob begins to turn more slowly, the CAP-2100 will actually increase the resolution of the steps, which slows down the action of the volume control and yields greater precision in choosing an appropriate setting.

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Classe Audio CAP-2100 owner manual Rotary
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CAP-2100 specifications

The Classe Audio CAP-2100 is a remarkable integrated amplifier that stands out in the realm of high-fidelity audio equipment. Designed for audiophiles who seek a blend of exceptional performance and elegant aesthetics, this amplifier is remarkable for its combination of advanced technologies and user-friendly features.

One of the standout features of the CAP-2100 is its Class A/AB amplification, which delivers a powerful and dynamic sound signature while preserving musicality and detail. With its robust output of 100 watts per channel into 8 ohms, the CAP-2100 is capable of driving a wide range of loudspeakers with ease, ensuring that every nuance of the audio is reproduced accurately. This amplifier is engineered to handle difficult loads and deliver a clean sound that remains stable even at higher volumes.

The CAP-2100 incorporates advanced digital signal processing, which optimizes the audio reproduction for various listening environments. This technology ensures that audio is tailored to the specific characteristics of the room, offering a customizable listening experience for users. Additionally, the amplifier features a built-in DAC (digital-to-analog converter) that supports high-resolution audio formats, allowing for playback of your favorite digital files with stunning clarity and depth.

Another impressive aspect of the CAP-2100 is its comprehensive connectivity options. The amplifier provides multiple inputs, including balanced XLR and unbalanced RCA connections, making it versatile enough to accommodate various source components. This connectivity flexibility ensures seamless integration into any existing audio setup.

The design of the Classe Audio CAP-2100 is as intuitive as it is beautiful. The front panel features a sleek, minimalist aesthetic with a large volume knob and easy-to-read indicators. The build quality is excellent, with a solid chassis that minimizes the impact of external interference, further enhancing audio performance.

In summary, the Classe Audio CAP-2100 integrated amplifier is a true testament to high-fidelity audio engineering. Its combination of power, sophistication, and versatility, along with advanced technologies and user-centric design, makes it a fantastic choice for those who demand the best in their audio systems. Whether listening to your favorite vinyl record or streaming high-resolution digital music, the CAP-2100 ensures an unparalleled listening experience that will satisfy even the most discerning audiophiles.
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