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Yamaha 8" Black Powered Subwoofer - YST-SW225

Abt Model: YSTSW225 | UPC Code: 027108920504
 Discontinued Product This item is no longer available from our website.
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150W Dynamic Power/ Advanced YST II (Yamaha Active Servo Technology II)/ QD-Bass (Quatre Dispersion Bass) Technology/ Linear Port For Minimizing Extraneous Noise/ Magnetic Shielding/ Auto Standby/ Black Finish
Discontinued (details)
Your Shipping Zip Code: 20149 (change)

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Product Details

Yamaha 8" Black Powered Subwoofer, Model YSTSW225

Key Features:

  • Advanced YST
    Advanced Yamaha Active Servo Technology (Advanced YST) is a unique system in which the speaker and amplifier work together to cancel out impedance so the speaker unit has a perfectly linear motion. Advanced YST helps to ensure the highest levels of sound pressure and overall performance
  • QD-Bass Technology
    QD-Bass (Quatre Dispersion Bass) technology uses down-firing drivers with square, pyramid-shaped reflective plates to radiate the sound efficiently in four horizontal directions. The reflective plates negate any effects caused by the floor surface and reduce resonance between sound waves reflected from the floor and the unit


  • Advanced YST II (Yamaha Active Servo Technology II)
  • QD-Bass (Quatre Dispersion Bass) Technology
  • Linear Port for Minimizing Extraneous Noise
  • High 150W Dynamic Power
  • BASS (Bass Action Selector System)
  • 8" Multi-Range Driver with Magnetic Shielding
  • 28-200Hz Low Frequency Reproduction
  • Auto Standby


  • Advanced YST Technology: (Advanced YST II)
  • QD Bass Technology
  • High Efficiency Power Amplifier
  • Multi-Range Driver: 8" Cone
  • Magnetic Shielding
  • High Cut Filter: 40 - 140 Hz
  • Phase Control (Normal or Reverse)
  • Auto Standby
  • BASS (Bass Action Selector system)
  • Dynamic Power: 150W
  • Frequency Response: 20 - 200 Hz (-10 dB)

Approximate Dimensions:

  • Width: 11.87"
  • Height: 13.75"
  • Depth: 13.75"

Approximate Weight:

  • Unit: 25.3 lbs
  • Shipping: 27 lbs

Warranty Information:

  • Manufacturer Warranty (authorized online retailer): 2 years parts and labor
More reasons to buy the Yamaha YST-SW225 from Abt Electronics
  • is an authorized dealer (Learn More).
  • The Yamaha YST-SW225 is Brand New.
  • The Yamaha YST-SW225 Ships in a Factory Sealed Box.
  • Abt ships this product for free!
Amplifier TypePower Amplifier
Driver Size (inches)8"
Speaker TypeSubwoofer
Yamaha 8" Black Powered Subwoofer

Yamaha 8" Black Powered Subwoofer


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