Yamaha YHT-493 Gebruikershandleiding - Pagina 9

Blader online of download pdf Gebruikershandleiding voor {categorie_naam} Yamaha YHT-493. Yamaha YHT-493 12 pagina's. Home cinema speaker package
Ook voor Yamaha YHT-493: Gebruikershandleiding (2 pagina's)

Pagina afdrukken

Advanced Yamaha Active Servo Technology II

In 1998, Yamaha brought to the marketplace

speaker systems utilizing YST ( Yamaha Active Servo

Technology ) to give powerful, high quality bass

reproduction. This technique uses a direct

connection between the ampliﬁer and speaker,

allowing accurate signal transmission and precise

speaker control.

As this technology uses speaker units controlled by

the negative impedance drive of the ampliﬁer and

resonance generated between the speaker cabinet

volume and port, it creates more resonant energy

(the "air woofer" concept) than the standard bass

High-amplitude

bass sound

Air woofer

Cabinet

(Helmholtz resonator)

Port

Advanced impedance

Converter

Active Servo

Processing

Ampliﬁer

Signals of low amplitude

reﬂex method. This allows for bass reproduction

from much smaller cabinets than was previously

possible.

Yamaha's newly developed Advanced YST II adds

many reﬁnements to Yamaha Active Servo

Technology, allowing better control of the forces

driving the ampliﬁer and speaker. From the ampli-

ﬁer's point of view, the speaker impedance changes

depending on the sound frequency. Yamaha

developed a new circuit design combining

negative-impedance and constant-current drives,

which provides a more stable performance and

clear bass reproduction without any murkiness.

Signals