Yamaha WX-021 MusicCast 20 Wireless Speaker

$249.95 OR

Color: Black - In Stock

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Model: WX-021BL UPC: 027108957302 Item: 2492

Yamaha WX-021 MusicCast 20 Wireless Speaker Overview

Beatles in the bedroom? Bach in the bath? Get your music wherever, whenever you want – it’s all at your fingertips with Yamaha’s multi-room wireless MusicCast system. The compact MusicCast 20, one of the latest line of wireless speakers, combines Yamaha’s engineering excellence with versatility. Combine two 20s with the MusicCast Sub (coming soon) for a solid sat-sub stereo system. Tap into the major online music services, or access your own digital collection. Control it all from your phone or pad with an adaptable app, or ask Alexa to do it for you. Wrapped in a stylish and compact package, the MusicCast 20 frees your system – and your ears – from the earthbound woes of wires.

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Product Information

The Small Wireless Speaker that's Big on Sound

The small wireless speaker that’s great on its own or as part of a MusicCast wireless stereo, wireless surround, or wireless multi-room audio setup. Works with Amazon Alexa.


  • Anywhere: mini, fits any space and style room, even wall mountable
  • Anyhow: variety of connection choices – Wi-Fi, Bluetooth, AirPlay, or Spotify Connect
  • Anything: completes your MusicCast wireless stereo, wireless multi-room, or wireless surround setup
  • Add a pair to a MusicCast Surround-capable AV receiver to provide wireless surrounds for a 5.1-channel home theater system
  • Voice control with Alexa via any Amazon Echo device


Use two for powerful wireless stereo sound.

Wireless Surround

Add a pair to a MusicCast Surround-capable AV receiver to provide wireless surrounds for a 5.1-channel home theater system. Compatible with following receivers: RX-V485BL, RX-V585BL, RX-V685BL, RX-A1080BL, RX-A2080BL, RX-A3080BL, RX-A680BL, RX-A780BL, RX-A880BL

MusicCast Wireless Multi-Room

Expand your MusicCast wireless multi-room setup. Stream and control multiple rooms with the MusicCast app for iOS and Android.

Wireless Surround

Combine a MusicCast Surround-capable AV receiver with two MusicCast 20 speakers, and enjoy the amazing convenience of creating a home theater with wireless rear speakers.

Hands-Free Operation with Amazon Alexa Voice Control

Alexa, Amazon’s cloud-based voice service that can be used to control all kinds of devices, can now control MusicCast products. Kick back on your couch and ask Alexa to play music on your MusicCast 20 wireless speaker without lifting a finger.

The Small Speaker with Big Sound

Designed to be small enough to work in any space without compromising sound quality. Amazing sound comes from an aluminum cone woofer and dual passive radiators.

Wall Mountable

Mounts conveniently on a wall with a 1/4”-20 screw.

Product highlights

  • MusicCast Surround capable
  • Built-in dual band Wi-Fi, Ethernet, Bluetooth and AirPlay
  • Networks with Yamaha receivers and other MusicCast speakers
  • Includes optical and analog inputs
  • Decodes high resolution music files (ALAC, FLAC, WAV, AIFF)
  • Streams from top online services Spotify, Pandora, Deezer, Napster, SiriusXM and Tidal
  • Free, easy-to-use MusicCast Controller app
  • Voice control with Amazon Alexa
  • Top-mounted alarm-clock button, three presets and status lights
  • 3-1/2” woofer, 1-1/8” soft dome tweeter and two passive radiators for all-around sound
  • 40-watt amplifier (25w woofer, 15w tweeter)
  • Two colors – white and black – and small footprint blends into any decor
  • Dimensions: 5-7/8" wide x 7-3/8" high x 5-1/8" deep
  • Weight: 4.8 lbs.
  • Warranty: 2 years – World Wide Stereo is an authorized dealer for every brand we sell
  • Included: World Wide Stereo 60-day guarantee and expert product support

Home theater? Voila!

Yamaha has added a new capability to its latest MusicCast line: wireless surround sound. Just add a pair of MusicCast 20s and your wired front and center speakers to one of the company’s latest V-series receivers, and get instant 5.1 surround without the usual tripping hazard. For a fuller foundation, consider adding Yamaha’s MusicCast Sub, when it arrives later this year, to your system’s bottom line. (Note that MusicCast Surround is not compatible with earlier MusicCast units.)

Access to your favorite music streaming apps

The built-in Wi-Fi and the MusicCast Controller app (free, for Apple or Android) bring access to that grand jukebox from the cloud right into the palm of your hand. Stream via Spotify Connect, Pandora, Tidal, Deezer, Napster and more (subscriptions may be required), and access hundreds of free Internet radio stations. Or hook into your home network server to queue up your own tune collection. And the MusicCast system handles today’s high-resolution music files, up to 192kHz/24 bit in most lossless formats, for the finest listening experience.

Fingertip – or voice – control

Control the sound in every room, choose from among all your sources, pick favorites and hide lesser-used ones, pipe the same music to all your speakers or direct different tunes to each – the MusicCast Controller app is highly customizable and intuitive. You can even add pictures of each room to your screens. The MusicCast 20 has a great bedside manner as well, with alarm-clock capabilities and three “favorites” buttons along the top. Integration with Amazon’s intelligent Alexa means you get voice-control of the MusicCast system via any Echo device.

Built for superior sonics

You’d expect no less than excellent audio from a speaker engineered by Yamaha. And the MusicCast 20 delivers, with a 3-1/2” low-frequency driver and a soft-dome 1-1/8” tweeter, each driven by separate custom-designed amps (40 watts total), plus dual passive radiators, for full-range all-round audio. A pair of these compact, stylish and unobtrusive speakers (in your choice of white or black) fits anywhere, and fills nearly any room with satisfying Yamaha sound.

Pairs with…

For the first time, you can link a pair of MusicCast 20s to Yamaha’s RX-V685, RX-V585 or RX-V485 receivers for instant surround without messy wires.



  • Maximum output power: 40W
  • Inputs: Ethernet
  • Wireless
    • AirPlay
    • Bluetooth
    • Wi-Fi (2.4G/5G (802.11a/b/g/n)
  • USB: Service only
  • Sound modes: Standard, Bass booster
  • Hi-res audio codec: WAV, FLAC, AIFF 192kHz/24-bit
  • Speaker unit
    • 3 1/2" aluminum cone woofer
    • 1 1/8" soft dome tweeter
    • Dual passive radiators
  • Alarm: Yes
  • Dimensions (W x H x D): 5 7/8" x 7 3/8" x 5 1/8"
  • Weight: 4.8 lbs.

What's in the Box

What's in the Box:

  • WX-021 MusicCast 20 Wireless Speaker
  • Manual


We'd love to hear your thoughts! Please leave a review.

Customer Reviews for Yamaha WX-021 MusicCast 20 Wireless Speaker

4.2 / 5.0
12 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 3 out of 5
Nice speakers
I bought these speakers to improve the surround in my open family room. To my surprise, YSP-5600 is not compatible with the MusiucCast speakers. I connected to the Apple TV in my bedroom, but I can't control the volume with the Apple TV remote control, so I can't use it either. Now I'm looking at where to use them. Setting both speakers as a stereo performs very well.
February 5, 2023
Originally posted at
Rated 4 out of 5
Great sound quality in combination with my Yamaha receiver
Provides great stereo sound in 3 rooms of my house. Wi-Fi connection not reliable on one of the units despite all 3 being approx. same distance from the Wi-Fi router. I installed a brand-new high speed modem and router just before these were installed.
January 17, 2023
Originally posted at
Rated 5 out of 5
I would buy this product again,
I can't wire rear surround speakers to my yamaha RX-v685 home theater receiver, so these work perfectly as the rear speakers.
October 27, 2022
Originally posted at
Rated 5 out of 5
I'll buy another when my MusicCast 10 needs replacing
Use with my MusicCast 10 and wired speakers with RN-803. I've used it stand alone and works very well for that as well..
October 4, 2022
Originally posted at
Rated 1 out of 5
Terrible connectivity
The app keeps losing both my av receiver and portable speaker ! The issues make the speaker pretty well useless ! I could understand if it was only once or twice but it's happening every month or so ! Very disappointing Yamaha !
April 16, 2022
Originally posted at
Rated 3 out of 5
Great when it works
The sound is decent on these speakers (if you aren't too worried about getting bass from them), but I don't know if it is an issue with my router or what, but almost everyday they fall off network and I have to reboot the router to get them running, sometimes rebooting more than once. It's annoying to the point of considering returning them.
This review was collected as part of a promotion
August 3, 2020
over 2 years ago
Rated 5 out of 5
Great sound and excellent quality.
October 9, 2019
Rated 5 out of 5
Highly Satisfied
Awesome piece of equipment. Very pleased with sound quality and convenience of the MusicCast app!!!
This review was collected as part of a promotion
January 9, 2019
over 4 years ago
Rated 5 out of 5
Great sound in a small package!
Great sound and easy to set up with Musiccast 400 soundbar. Crystal clear audio and background noises while watching movies or listening to music.
This review was collected as part of a promotion
November 28, 2018
over 4 years ago


Customer Q & A

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Why did you choose this?
World Wide Stereo Store
They have been on backorder for a long time. I need these for the MusicCast network at my house already. This rounds out the package for two more rooms and one unit that I can use outdoors for parties.
Mark H on Apr 22, 2023
They have been on backorder for a long time. I need these for the MusicCast network at my house already. This rounds out the package for two more rooms and one unit that I can use outdoors for parties.
Mark H on Apr 22, 2023
Compatible with my existing system
Steve M on Sep 8, 2020
Compatible with my existing system
Steve M on Sep 8, 2020