DISC Yamaha NS-SW901 Soavo Subwoofer, Piano Black

1.333,00 € (including VAT @ 19%)

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  • Yamaha Active Servo Technology II
  • 600 W High Output Power
  • Front Firing Design
  • Twin Wooden Linear Ports
  • Piano Black Finish

DISC Yamaha NS-SW901 Soavo Subwoofer, Piano Black


The Yamaha NS-SW901 is a powerful subwoofer with a beautiful Piano Black exterior, offering impressive deep bass output. Featuring advanced technologies and a high performance digital amplifier, this Yamaha subwoofer delivers exceptionally high levels of power and sound quality, yet with low power consumption and compact size, designed to match the rest of the Soavo range. The front firing design ensures extremely fast response and attack, and is especially suited to the accurate reproduction of music.

Product Ref: 47967

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Advanced YST II (Yamaha Active Servo Technology II)

The YST II combines negative-impedance and constant-current principles to drive the speaker cone with extremely tighter control. This system dynamically optimizes effective speaker impedance to maintain excellent linearity with the Advanced Negative Impedance Converter. This means more stable and accurate low range response, higher sound pressure levels, and the probability to reproduce clear bass without muddiness.

600 W High Output Power

The NS-SW901 derives its bass thrust from a built-in 600-watt digital amplifier which 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. The 25cm cone is made of Yamaha underdeveloped FBP - a blend of paper, carbon fiber and aramid fiber. Its extreme stiffness and extra-long stroke preventable distortion from large, deep bursts of sound.

Heavy-Duty Construction

Low frequency response is improved and unwanted vibration is reduced thanks to the three-way mitered-joint construction at the cabinet corners and baffle/body connections to increase tightness of the joints so the entire cabinet behaves as a single unit.

Wooden Ports and Piano Black Finish

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. The NS-SW901 subwoofer has been finished in a sleek and stylish Piano Black. The glossy, lustrous finish is applied using the same techniques developed by Yamaha over many decades of manufacturing beautiful grand pianos.


  • Advanced YST II (Yamaha Active Servo Technology II)
  • 25cm (10") F.B.P. (Fiber Blend Paper) diaphragm with diecast aluminium frame
  • 600W high performance digital amplifier built in
  • Twin wooden Linear Ports
  • Heavy-duty construction
  • Three Bass Modes (wide, normal and narrow)
  • Three memory presets
  • Continuously variable high cut filter
  • Full-function remote control unit
  • Sleep timer


  • Driver: 25 cm F.B.P. cone
  • Output Power: 600 W
  • Frequency Response: 18-160 Hz
  • Advanced YST: Yes
  • High-Efficiency Power Amplifier: Yes
  • Linear Port: Yes
  • BASS (Bass Action Selector System): Yes
  • Standby Power Consumption: 0.5 W
  • Dimensions (W x H x D): 410 x 457 x 462 mm; 16-1/8" x 18" x 18-1/4"
  • Weight: 32 kg; 70.5 lbs.

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If any electrical items in your order are supplied with a United Kingdom plug connection, a suitable plug conversion adapter will be included free of charge.