Design Features, Warm-Up | Bel Canto Design eVo200.2 guide

Design Features

•High efficiency Digital Power Processing output stage for cool operation

•Small signal analog processing

•> 800 watts short term continuous power output capability in Mono mode

•Optimized balanced and single-ended input stage

•THD and IMD <0.01%

•Damping Factor >100

•High thermal stability in all stages

•Fully regulated, low noise supplies for all analog stages

•Audio Grade decoupling capacitors and resistors used throughout

•Soft clipping performance with uncompromised low level distortion performance

•Anti-phase dual channel operation.

•High efficiency for ‘green’ amplification

•Protection circuitry outside signal path

The eVo Digital Output Stage and Digital Power Processor

The Bel Canto Design eVo digital output stage is of unique simplicity. The output uses 2 N channel MOSFET switches which are switched between the power supply rails. These switches turn on and off within 30 billionths of a second and provide an on resistance path to the supply of less than 65 thousandths of an ohm. These switches switch alternately between the supplies at a rate over 600,000 cycles per second (600 kHz). When no audio signal is present, the ratio between the time at the positive supply and the negative is balanced to provide no audio frequency output. The switching stage is isolated from the loudspeaker by a single Inductor/Capacitor. This 80kHz

second order low pass filter is used to reject high frequency energy and optimize phase response – while preserving high frequency information.

Furthermore, the digital power processor adds small levels of high frequency dither to insure that an inherently linear output stage characteristic is maintained from very low to very high output levels. The audio frequency information modulates the output stage by changing the time relationship between the positive and negative supply rails. The critical timing information is controlled by the digital power processor and the effective switching frequency is changed over a 200 kHz to 1500 kHz range. This spreads the digital energy created by the amplifier over a wide bandwidth, greatly reducing the energy at any one frequency. This permits using a simple LC filter to remove the digital energy and maintains excellent phase response. Feedback is taken from the common node of the output switches before the LC filter and fed back to the digital power processor. This feedback is used to insure that any variations in the switching speed of each output device are compensated for, optimizing the linearity of the output stage.

Warm-Up

The eVo200.2’s sonic performance will start to stabilize after approximately forty (40) hours of continuous power up.

eVo200.2 Owner's Manual

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eVo200.2 specifications

The Bel Canto Design eVo200.2 is a sophisticated power amplifier that exemplifies the company's commitment to delivering high-fidelity audio performance in a compact and efficient design. This amplifier represents an evolution in technology, combining modern engineering with traditional audio principles to create a listening experience that is both rich and transparent.

One of the standout features of the eVo200.2 is its Class D amplification, which offers an impressive level of power while maintaining efficiency. This design allows the amplifier to produce an exceptional 200 watts per channel into 8 ohms, ensuring that it can drive a wide range of speakers with ease. Class D technology not only reduces heat generation, but it also contributes to a more compact form factor, making the eVo200.2 an ideal choice for audiophiles with limited space.

The eVo200.2 is built upon an advanced digital switching topology that enhances audio fidelity. This amplifier utilizes proprietary technology to minimize distortion and noise, delivering an exceedingly clean signal that respects the integrity of the source material. The result is an expansive soundstage with detailed imaging, allowing listeners to appreciate the nuances of their favorite recordings.

In addition to its power and clarity, the eVo200.2 features a robust, fully balanced design that includes differential inputs. This configuration minimizes interference and optimizes signal integrity, making it compatible with a wide array of source components. The amplifier also includes high-quality speaker terminals, providing a secure and reliable connection to a variety of loudspeakers.

Another notable characteristic of the eVo200.2 is its user-friendly design. The unit includes a streamlined front panel with a minimalistic aesthetic, complemented by LED indicators that provide essential information about the amplifier's status. This simplicity does not compromise its high-end audio performance, ensuring that it fits seamlessly into any audio setup.

Moreover, the eVo200.2 is equipped with overcurrent protection and thermal management systems to safeguard its internal components, enhancing longevity and reliability. This thoughtful engineering ensures that users can enjoy years of quality performance without concerns about overheating or damage.

In summary, the Bel Canto Design eVo200.2 stands out as a premier power amplifier that combines cutting-edge technology with exceptional build quality. With its robust Class D amplification, balanced design, and intuitive user interface, it offers both performance and convenience, making it an excellent investment for any serious audio enthusiast.