Yamaha NS-SW100 10" Powered Subwoofer
Yamaha

Yamaha NS-SW100 10" Powered Subwoofer

4.8
Rated 4.8 out of 5 stars
28 Reviews
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A 10-inch (25 cm) powered subwoofer built around two Yamaha bass technologies, Advanced YST II and the Twisted Flare Port. Yamaha lists a 25 to 180 Hz frequency response and 100 W of dynamic power.

Yamaha says the NS-SW100 combines its Twisted Flare Port and Advanced YST II (Yamaha Active Servo Technology II) with discrete amplifier circuitry and a high-quality 25 cm (10 inch) woofer, for bass that adds to the enjoyment of both music and movies.

Driver
25 cm (10") cone woofer
Dynamic power
100 W (5 ohms)
Output power
50 W (100 Hz, 5 ohms, 10% THD)
Frequency response
25 - 180 Hz
Technology
Advanced YST II, Twisted Flare Port
Weight
12 kg

Twisted Flare Port, from Yamaha

Why you will love it

Twisted Flare Port for clear, tight bass

Port noise is a common problem in ported subwoofers. Air moving at the edge of the port creates turbulence, and that turbulence can add noise that is not in the original signal.

Yamaha says the flared, gently twisting shape of the Twisted Flare Port diffuses the vortex of air around the port edge so the air flows smoothly. It says this reduces extraneous noise and gives clear, accurate low frequency reproduction.

Yamaha comparison of air turbulence in a conventional port and a Twisted Flare Port
Yamaha diagram of Advanced YST II with an Advanced Negative-Impedance Converter in a subwoofer cabinet

Advanced YST II

Yamaha developed Advanced YST II (Yamaha Active Servo Technology II) to combine negative-impedance and constant-current principles when driving the speaker cone.

Yamaha says it uses Advanced Negative Impedance Converter (ANIC) circuits to optimise the effective speaker impedance and maintain excellent linearity. It describes the result as more stable and accurate low range response, with tighter control than the previous version.

10-inch woofer and discrete amplifier

The NS-SW100 has a 25 cm (10 inch) cone woofer and discrete amplifier circuitry. Yamaha lists 100 W of dynamic power (5 ohms) and an output power of 50 W (100 Hz, 5 ohms, 10% THD).

The listed frequency response runs from 25 Hz to 180 Hz.

Yamaha NS-SW100 10 inch subwoofer

A shape made to blend in

Yamaha describes the form as gently rounded with a slanted front surface, designed to be unobtrusive in a living room or home theatre room.

Is it right for you?

A great fit if you…

  • Want to add bass to a stereo or home theatre system
  • Want a 10-inch subwoofer that is not too large for a living room
  • Have speakers you want to support with more low-end weight
  • Care about clean, controlled bass over sheer size

Worth knowing

  • It is a subwoofer only, so you need separate speakers and an amplifier or receiver
  • It measures 351 x 352 x 408 mm and weighs 12 kg, so plan the floor or shelf space
  • Yamaha lists a frequency response of 25 to 180 Hz

Build your system

The NS-SW100 adds low-end weight to any speaker system. Here are some places to start.

Specifications

Subwoofer

Driver 25 cm (10") cone
Dynamic power 100 W (5 ohms)
Output power 50 W (100 Hz, 5 ohms, 10% THD)
Frequency response 25 - 180 Hz
Advanced YST Yes
Twisted Flare Port Yes
Dimensions (W x H x D) 351 x 352 x 408 mm (13-7/8" x 13-7/8" x 16-1/8")
Weight 12 kg (26.5 lbs)

Specifications from Yamaha Australia's NS-SW100 specification page, checked November 2026.

Questions people ask

What size is the woofer?

25 cm (10 inch) cone.

What is the Twisted Flare Port?

Yamaha's port design. Its flared, gently twisting shape diffuses the vortex of air around the port edge, which Yamaha says reduces extraneous noise.

What is Advanced YST II?

Yamaha Active Servo Technology II. Yamaha says it combines negative-impedance and constant-current principles to drive the cone with tighter control.

What frequency range does it cover?

Yamaha lists 25 Hz to 180 Hz.

How heavy is it?

Yamaha lists 12 kg.

4.8
Rated 4.8 out of 5 stars
Based on 28 reviews
96%would recommend this product
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28 reviews
  • DG
    David G.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Quality Unit

    I bought this to go with my Yamaha soundbar. I've had Yamaha products in the the past and have always been impressed with the quality and performance and this beast is no different. I have a fairly simple set up with a budget 55" TV, an entry level Yamaha soundbar, and this Sub just transforms the whole viewing experience. Plug and play out of the box! The sound is fantastic.

    Thanks to Todd's for the simple transaction and quick delivery.

    Was this helpful?
  • CS
    Chris S.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    2 months ago
    This Sub just what I needed at a great price

    I worked in Audio Visual for over 20 years and also a musician . Have to say this Sub is good for topping up the low end of my 5.1 and sound quality is not sacrificed. Other speakers I have are Q acoustic towers with Onkyo TX SR393 amp. I just pop the sub on for movie night otherwise for general TV it stays off. The amp setting is set to 50Hz crossover

    Shipping from Todds was prompt and well communicated

    Was this helpful?
  • MR
    Mr R. J. P.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 year ago
    Excellent value

    Received in great time. This was very simple to setup. Came with everything I needed. Great addition to my Yamaha amplifier. With a few software tweaks on the amplifier software it sounds great

    Was this helpful?
  • AD
    Allan D.
    Verified Buyer
    I recommend this product
    Rated 4 out of 5 stars
    2 months ago
    NS-SW100

    Very happy result. Delivered on time and all in good shape. Great job team thanks.

    Was this helpful?
  • GF
    Garry F.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    2 months ago
    Excellent service

    Thank you for the quick delivery. The subwoofer works as promised. Great all round service and product.

    Was this helpful?
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