Pricing and availability

We compare 600+ stores and found this item at 5 stores. Prices updated .

Sweetwater
5.0 (3)
$205.99
Amazon
4.5 (55)
$205.99
Reverb
$176.58 New
$175.09 Used
B&H
5.0 (1)
$205.99
Thomann
4.7 (24)
$165.00 $164.00 $1.00 · All time low

Price History

Based on price data from 3 merchants for "Yamaha KS-SW100 50-Watt Powered Subwoofer". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.

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Description

Elevate your sound experience with the Yamaha KS-SW100 50-Watt Powered Subwoofer, a dynamic addition to any musician's arsenal. Designed specifically for electronic keyboards with built-in speakers, this subwoofer redefines your low-end output with precision and clarity. The Twisted Flare Port design is a standout feature, smoothing out airflow and minimizing noise, ensuring every note resonates with pristine clarity. Paired with Yamaha's Advanced YST II technology, this subwoofer expertly handles speaker impedance, delivering a stable and accurate low-frequency response that enriches your music with depth and realism.

The KS-SW100 doesn't just sound impressive—it looks the part too. Its sleek, unobtrusive design means it fits seamlessly into any environment, making it a versatile choice for both studio and stage setups. Whether you're looking to add a deeper dimension to your keyboard performances or enhance your live sound setup, the Yamaha KS-SW100 offers the power and clarity you need without overwhelming your space.

Key Features:

  • 50W dynamic output power
  • Twisted Flare Port design for clear, tight bass
  • Advanced YST II technology for precise speaker impedance management
  • Frequency range of 28 - 200 Hz
  • Magnetically shielded to prevent interference
  • Compatible with specific Yamaha keyboard models for optimized EQ settings
  • 20 cm bass driver cone for robust sound output

Product specs

Number of Channels 1
Output Power 50W
Speaker Size 1 x 8" cone woofer
Inputs 1 x RCA (1/4" adapter included)
Frequency Range 28Hz-200Hz
Height 11.5"
Width 13.37"
Depth 11.5"
Weight 18.7 lbs.

FAQs

What type of connection does the Yamaha KS-SW100 subwoofer use?

The Yamaha KS-SW100 subwoofer features a single RCA input, and it includes a 1/4" adapter for versatile connectivity with various audio sources.

Is the Yamaha KS-SW100 subwoofer suitable for enhancing keyboard sound systems?

Yes, the Yamaha KS-SW100 is designed to complement keyboard sound systems, providing a rich bass extension with its 8" cone woofer and 50W output power.

What is the frequency range of the Yamaha KS-SW100 subwoofer?

The Yamaha KS-SW100 subwoofer offers a frequency range of 28Hz to 200Hz, ensuring deep bass response suitable for a variety of musical applications.

How portable is the Yamaha KS-SW100 subwoofer for live performances?

Weighing 18.7 lbs and with dimensions of 11.5" x 13.37" x 11.5", the Yamaha KS-SW100 is compact and relatively lightweight, making it convenient for transport to live performance venues.

Reviews

PROS

  • Enhances bass dimension, making it feel like a live performance

  • Rounds out sound for Yamaha keyboards, improving depth

  • Affordable price for noticeable sound quality improvement

  • Perfect match with Yamaha PSR-SX models

  • Rich tone from low to high, simulates live orchestra feel

  • Versatile for multiple purposes and setups

CONS

  • Limited feature set for specific use-cases

  • Poor sound quality with some instruments, like the Reface CP

  • Lacks EQ controls for sound customization

  • Input cable design may be inconvenient

Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Yamaha KS-SW100 50-Watt Powered Subwoofer.

Comparisons

  • The Yamaha KS-SW100 is often compared to the SVS PB1000 Pro, which offers more configurability and tighter bass with its app-controlled EQ settings.

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  • For a budget around $300, Monoprice SW12 and SW15 subwoofers are alternatives worth considering for improved bass response.

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Features and functionality

  • The Yamaha KS-SW100 can be part of a 5.1 home theater setup and is noted for being a reasonable entry-level option for small rooms.

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  • The Yamaha KS-SW100 lacks speaker level inputs and a crossover dial, offering only a single RCA input, which limits connectivity options.

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  • It does not include an Auto-On function, requiring manual operation, which may be inconvenient for users intending to pair it with an AVR.

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  • Some users recommend experimenting with the subwoofer settings on your receiver to optimize performance and reduce boomy bass.

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Value and pricing

  • While affordable, users often suggest saving for a higher-end model like the Klipsch R100SW or R110SW, which might offer better performance for a similar price.

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  • Owners note that despite its limitations, the KS-SW100 is a satisfactory option in regions with fewer subwoofer choices under $200.

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User experience

  • Some owners report that the subwoofer sounds loud but can be muddy and inconsistent, best suited for non-critical listening environments.

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Use cases and applications

  • The Yamaha KS-SW100 is satisfactory for casual movie watching and background music, but may not impress serious audiophiles seeking precision and clarity.

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  • It has been suggested that dual KS-SW100 subwoofers combined with a MiniDSP could enhance performance when paired with bookshelf speakers for a balanced sound system.

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Setup and maintenance

  • It's been suggested to adjust the subwoofer channel on the receiver for better bass control, rather than relying solely on hardware settings.

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