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Overview:

Soavo-900SW Advanced YST II Front Firing Subwoofer

• The Soavo-900SW Subwoofer meets the challenge of providing an ideal balance between tight sounds (with crisp, fast attack) and deep sounds (with a spacious feeling). Designed for extremely accurate music reproduction, the Soavo-900SW proudly takes its place in Yamaha's Soavo series.

Advanced YST II

• Yamaha's Advanced YST II (Yamaha Active Servo Technology II) combines negative-impedance and constant-current principles to drive the speaker cone with extremely tighter control. Using Advanced Negative Impedance Converter (ANIC) circuits, this system dynamically optimizes effective speaker impedance to maintain excellent linearity. This means more stable and accurate low range response, not to mention higher sound pressure levels. This means more stable and accurate low range response, higher sound pressure levels, and the ability to reproduce clear bass without muddiness.

High Performance Driver

• The 25cm (10”) cone driver uses a new Yamaha-developed material consisting of paper with a blend of carbon fibers and aramid fibers. Its extreme stiffness and extra-long stroke prevent distortion from occurring even during large, deep bursts of sound. A large, powerful magnetic circuit also contributes to the driver’s fast response. The unit is firmly supported by a strong diecast aluminium frame.

600W Digital Amplifier

• The Soavo-900SW has a high-end audio component built in! — its 600W digital amplifier. Featuring Yamaha’s exclusive Power Engine chipset, it uses a constant gain PLL modulator circuit, a cross feedback loop circuit, an Active Power Control system, a highly efficient power supply and the highest quality parts. It delivers exceptionally high levels of power and sound quality, yet with low power consumption and compact size.

Front Firing Design

• The front firing design ensures extremely fast response and attack, and is especially suited to the accurate reproduction of music.

Twin Wooden Linear Ports

• The wooden ports are carved from a block of alder wood and aesthetically match the enclosure, the twin ports provide more port area without increasing the subwoofer’s size, as one large port would do. The shape is based on a natural logarithm to prevent extraneous wind noise.

Heavy-Duty Construction with Three-Way Mitered-Joint Construction

• The Soavo-900SW employs three-way mitered-joint construction at the cabinet corners and baffle/body connections to increase the tightness of the joints so the entire cabinet behaves as a single unit. This improves low frequency response and reduces unwanted vibration. A thick baffle (37mm; 1-1/2”) also minimizes vibration, adding to the overall benefits of the stiff cabinet construction.

Birch Veneer Cabinet with Open-Pore Finish

• Birch is an acoustically excellent material that is used in Yamaha pianos. Yamaha’s long decades of woodworking expertise have confirmed the superior performance of birch veneer for speaker cabinets, particularly in the shading of bass sounds. The cabinet is given the same luxurious and environmentally friendly (non-PVC) open-pore finish used on Yamaha’s finest wood-grain pianos. Embedded switches also show the scrupulous care that Yamaha has taken in designing this subwoofer.

Three BASS Modes

• The BASS (Bass Action Selector System) function provides a selection of three modes to match the source being listened to. Wide for powerful sound with movies, Normal for natural sound with music and movies, and Narrow to cut unnecessary bass from music sources to enjoy clearer sound quality.

 

Full-Function Remote Control Unit

• The remote unit makes it convenient to operate the subwoofer. It lets the user turn the power on and off, adjust the volume, adjust the high cut filter, select phase (normal/reverse), select BASS mode, engage the sleep timer and set and select the preset memories.

Three Preset Memories

• Three combinations of settings (volume, BASS, high cut filter and phase) can be memorized and recalled at the touch of a button on the remote unit.

Sleep Timer

• Engaging the sleep timer shuts off the power after two hours. This is both handy and energy-saving, because people often forget to turn off their subwoofer.

Features:

Powerful, Accurate Sound

• The Soavo-900SW is offered with dark brown, brown birch, natural birch, or black finish.
• Not all finishes are available in all areas.
• Advanced YST II (Yamaha Active Servo Technology II)
• New 10" (25cm) F.B.P. (Fiber Blend Paper) diaphragm with diecast aluminum frame
• 600W high performance digital amplifier built in
• Twin wooden Linear Ports

Cabinet

• Heavy-duty construction
• Birch veneer cabinet with piano-quality open-pore finish

Convenient Features

• Three BASS (Bass Action Selector System) modes
• Three memory presets
• Continuously variable high cut filter
• Full-function remote control unit
• Sleep timer

Other Notable Features

•  Continuously variable high cut filter (40 – 140Hz)
•  LFE terminal (bypasses the high cut filter)
•  Power can be turned on and off using a Yamaha receiver/amp remote unit
•  Remote controllable motor-driven volume control
•  Low power consumption with standby power of 0.5W
• Gold-plated terminal
•  Frequency response: 18 – 160Hz
• Heavy construction: 32kg (70.1lbs.)