Yamaha NS-SW310: ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY II
ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY II: Yamaha NS-SW310
Table of contents
- CAUTION: Read this before operating your unit
- • VOLTAGE SELECTOR SPECIAL INSTRUCTIONS FOR U.K. MODEL
- CONTENTS FEATURES
- SUPPLIED ACCESSORIES ATTACHING THE NON- SKID PADS
- PLACEMENT
- CONTROLS AND THEIR FUNCTIONS
- CONTROLS AND THEIR FUNCTIONS
- CONNECTIONS Connecting to line output (pin jack) terminals of the amplifier ■ Using one subwoofer
- ■ Using two subwoofers ■ Connecting to the LFE (INPUT3) terminal(s)
- Connecting to speaker output terminals of the amplifier ■ Using one subwoofer (with speaker cables) ■ Using two subwoofers (with speaker cables)
- ■ Using one subwoofer (with speaker cables) ■ Using two subwoofers (with speaker cables)
- Connecting to the INPUT1/OUTPUT Plug in the subwoofer to the AC outlet terminals of the subwoofer
- AUTOMATIC POWER-SWITCHING FUNCTION Changing the AUTO STANDBY setting
- ADJUSTING THE SUBWOOFER BEFORE USE
- Frequency characteristics
- ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY II
- TROUBLESHOOTING Problem Cause What to Do
- SPECIFICATIONS Limited Guarantee for European Economic Area (EEA) and Switzerland
ADVANCED YAMAHA ACTIVE SERVO TECHNOLOGY II
In 1988, Yamaha brought to the marketplace speaker
Yamaha’s newly developed Advanced YST II adds many
systems utilizing YST (Yamaha Active Servo Technology)
refinements to Yamaha Active Servo Technology,
to give powerful, high quality bass reproduction. This
allowing better control of the forces driving the amplifier
technique uses a direct connection between the amplifier
and speaker. From the amplifier’s point of view, the
and speaker, allowing accurate signal transmission and
speaker impedance changes depending on the sound
precise speaker control.
frequency. Yamaha developed a new circuit design
combining negative-impedance and constant-current
drives, which provides a more stable performance and
As this technology uses speaker units controlled by the
clear bass reproduction, without any murkiness.
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 reflex method. This allows for bass
reproduction from much smaller cabinets than was
previously possible.
Cabinet
Air woofer
(Helmholtz resonator)
High-amplitude
Port
bass sound
Advanced impedance
Converter
Active
Servo
Signals
Processing
Amplifier
Signals of low amplitude
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