ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY (for SW-P130)

The theory of Yamaha Active Servo Technology has been based upon two major factors, the Helmholtz resonator and negative-impedance drive. Active Servo Processing speakers reproduce the bass frequencies through an “air woofer”, which is a port or opening in the speaker’s cabinet. This opening is used instead of, and performs the functions of, a woofer in a conventionally designed speaker system. Thus, signals of low amplitude within the cabinet can, according to the Helmholtz resonance theory, be outputted from this opening as waves of great amplitude if the size of the opening and the volume of the cabinet are in the correct proportion to satisfy a certain ratio.

In order to accomplish this, moreover, the amplitudes within the cabinet must be both precise and of sufficient power because these amplitudes must overcome the “load” presented by the air that exists within the cabinet.

Thus it is this problem that is resolved through the employment of a new design in which the amplifier supplies special signals. If the electrical resistance of the voice coil could be reduced to zero, the movement of the speaker unit would become linear with respect to signal voltage. To accomplish this, a special negative-impedance output-drive amplifier for subtracting output impedance of the amplifier is used.

By employing negative-impedance drive circuits, the amplifier is able to generate precise, low-amplitude, low- frequency waves with superior damping characteristics. These waves are then radiated from the cabinet opening as high-amplitude signals. The system can, therefore, by employing the negative-impedance output drive amplifier and a speaker cabinet with the Helmholtz resonator, reproduce an extremely wide range of frequencies with amazing sound quality and less distortion.

The features described above, then, are combined to be the fundamental structure of the conventional Yamaha Active Servo Technology.

Our new Active Servo Technology — Advanced Yamaha Active Servo Technology — adopted Advanced Negative Impedance Converter (ANIC) circuits, which allows the conventional negative impedance converter to dynamically vary in order to select an optimum value for speaker impedance variation. With this new ANIC circuits, Advanced Yamaha Active Servo Technology can provide more stable performance and improved sound pressure compared with the conventional Yamaha Active Servo Technology, resulting in more natural and dynamic bass reproduction.

High-amplitude bass sound

Cabinet

Air woofer

 

 

(Helmholtz resonator)

 

Port

 

 

 

Advanced Negative-

 

 

impedance Converter

 

 

Active Servo

Signals

 

Processing

 

 

 

Amplifier

 

Signals of low amplitude

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Yamaha HTR-5630RDS owner manual Advanced Yamaha Active Servo Technology for SW-P130
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HTR-5630RDS specifications

The Yamaha HTR-5630RDS is a versatile and robust home theater receiver that delivers an exceptional audio experience for movie buffs and music lovers alike. Launched as part of Yamaha's renowned line of audio equipment, this model integrates advanced technologies tailored to enhance both sound quality and usability.

One of the standout features of the HTR-5630RDS is its compatibility with a wide variety of audio formats. It supports Dolby Digital and DTS decoding, which means it can process multi-channel audio signals that create an immersive surround sound experience. Whether you’re watching an action-packed blockbuster or a serene classical concert, this receiver ensures that every sound fills the room and envelops you.

In addition to its decoding capabilities, the HTR-5630RDS boasts a power output of 100 watts per channel, providing ample power for driving a full surround sound speaker system. Its high-current design ensures that it can deliver exceptional performance even with demanding speakers, offering a clear and dynamic soundstage. Moreover, the receiver features multiple audio inputs, including optical and coaxial digital connections as well as analog inputs, allowing you to connect various devices like gaming consoles, Blu-ray players, and streaming devices with ease.

The HTR-5630RDS also comes equipped with Yamaha's proprietary YPAO (Yamaha Parametricroom Acoustic Optimizer) technology. This feature automatically measures the acoustics of your room and adjusts settings to optimize sound performance based on your specific environment. This means that regardless of where you place your speakers, you can expect balanced and accurate sound reproduction.

For those who enjoy listening to the radio, the HTR-5630RDS includes an RDS (Radio Data System) tuner that provides information about FM radio stations, such as song titles, artist names, and other details. The user-friendly interface makes it easy to navigate through stations and select your favorites, enhancing your listening experience.

With its sleek design and comprehensive feature set, the Yamaha HTR-5630RDS stands out as an excellent choice for anyone looking to build a high-quality home theater system. Its combination of powerful amplification, advanced processing features, and user-friendly setup makes it an ideal addition to any entertainment setup. Whether you're enjoying a movie night with family or hosting a gathering with friends, the Yamaha HTR-5630RDS ensures that your audio experience will be nothing short of extraordinary.
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