RX-V640

NEW PRODUCT BULLETIN

heavy chassis which is also designed for maximum vibration damping.

Anti-Resonance Aluminum-Extruded Heat Sink

The large, anti-resonance, aluminum- extruded heat sink is located on the base frame with the power amplifier circuit boards to prevent interference with the preamplifier and digital processing sections. The power block is equipped with a fan, but it is only used for extreme heat build-up and is not activated during normal operation, preventing the occurrence of even the slightest unwanted noise.

Wide-Range Frequency Response for DVD-Audio and SACD

With an extremely wide frequency range of 10 to 100,000Hz, this receiver is capable of delivering the full potential of the new digital audio sources DVD-Audio and SACD.

Optimum Space Utilization

Extra-Large Custom-Made Block Electrolytic Capacitors

Developed specifically for the RX-V640, the 12,000µF block electrolytic capacitors use low-magnification foil and are exceptionally high quality.

Direct Signal Path Speaker Relays with Gold-Plated Crossover Connection and Shielding

Speaker switching is accomplished by relays right in front of the speaker terminals, rather than at the switch position. This results in a shorter signal path and minimum output impedance.

High Performance Myca Capacitors and Film Capacitors

At this level of sound quality, even these small parts make a difference. The high precision FE mica and metallic mylar film capacitors use polypropylene material and are the highest performance types on the market.

RX-V640 High Quality Parts

Extra-Large Low-Impedance

Transformer

The large 4.4 kg low-impedance transformer is an important factor in the RX-V640’s extremely stable power supply.

Thick PC Board Wiring with 1.6mm (5/8”) φ Copper Jumper Cables

The audio signal is routed within the amplifier through exceptionally thick, top quality wire, ensuring that signal purity is maintained.

The use of highly integrated LSIs allows an interior design that maximizes power and sound quality by positioning all the digital processors and related circuitry in one small area. This leaves most of the space open for the power amplifier components: transformers, capacitors, heat sink and so on. This means that these parts can be much larger than usual for greater power, that they can be separated for minimum chance of interference, and that circuits can be arranged in straight lines for maximum signal purity. For example, the tone control circuit layout is straighter and shorter than ever.

Finest Parts Used Throughout

In order to realize the goals of massive power and superlative sound quality, Yamaha technicians completely re- evaluated all the parts used in previous receivers. As a result, many were replaced with more expensive or custom- designed units.

RX-V640 Interior View and Signal Flow (

 

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5/10 (R/L/T/K)

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Yamaha RX-V640 manual Anti-Resonance Aluminum-Extruded Heat Sink, Wide-Range Frequency Response for DVD-Audio and Sacd

RX-V640 specifications

The Yamaha RX-V640 is a notable audio-video receiver that made its mark in the early 2000s, offering a robust feature set for home theater enthusiasts. This AV receiver is part of Yamaha’s RX-V series, known for delivering quality sound and versatile connectivity options. The RX-V640 merges both performance and functionality, catering to a wide variety of audio and video formats.

One of the distinguishing features of the RX-V640 is its powerful amplification system. The receiver is equipped with a maximum power output of 100 watts per channel across 5 channels. This ensures that it can drive a full surround sound system effectively while maintaining clarity even at higher volumes. The incorporation of Yamaha’s Digital ToP-ART (Total Purity Audio Reproduction Technology) is another highlight. This technology minimizes signal degradation and enhances audio fidelity, allowing listeners to enjoy music and movie soundtracks with exceptional detail and richness.

The RX-V640 boasts support for various surround sound formats, including Dolby Digital, DTS, and Yamaha’s proprietary DSP modes. With 17 different surround programs, users have the flexibility to tailor their listening experiences to suit specific genres, from cinematic blockbusters to immersive concert recordings. The built-in Yamaha DSP features create a realistic surround sound environment, making every action scene or musical performance come alive.

Connectivity is another strong suit of the RX-V640. It comes with multiple inputs and outputs, including HDMI, optical, and coaxial, allowing for seamless integration with modern devices. The receiver is also equipped with five audio inputs and two sets of speaker outputs, enabling users to set up a versatile audio system without the hassle of switching cables. The inclusion of a remote control further enhances convenience, giving users the ability to manage their audio-visual experience from a distance.

In terms of build quality, the RX-V640 follows Yamaha's tradition of durability and design elegance. With an intuitive user interface and an on-screen display, navigating through the various settings and configurations becomes a straightforward task for users of all experience levels.

In summary, the Yamaha RX-V640 is a solid choice for anyone seeking an audio-video receiver that combines power, advanced technologies, and versatile connectivity. Its performance characteristics make it especially suitable for both home theater enthusiasts and casual listeners alike, delivering an impressive sound experience that stands the test of time.