A pair of wireless Hi-Fi bookshelf speakers from Yamaha with built-in amplification, YPAO room calibration, HDMI eARC and streaming through MusicCast, AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect and Roon Ready.
Yamaha says the NX-70A is a wireless Hi-Fi speaker with room calibration, high-fidelity streaming, simple TV connection and app control. The left and right speakers connect wirelessly, so no cable is needed between them.
Why you will love it
Harmonious Diaphragm
Every driver uses Yamaha's Harmonious Diaphragm, a blend of PBO fibre ZYLON and spruce. Yamaha says the spruce is also used in the soundboards of its grand pianos, and that the aim is an even tone from low to high frequencies.

Synergistic Drive
Yamaha connects each speaker unit directly to the amplifier circuit. It says this lets the amplifier manage current flow closely and keeps distortion low, and that it is only possible because the amplifier and speaker are designed as a pair.
YPAO room calibration
A supplied microphone measures your room. YPAO then adjusts playback for the space, and the NX-70A includes PEQ, Reflected Sound Control (R.S.C.) and YPAO Volume. Yamaha says R.S.C. manages early reflections that affect stereo clarity.


TV sound and streaming
One HDMI eARC/ARC connection to your TV carries TV sound, and CEC lets the TV remote control power and volume. For music, Yamaha lists AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Roon Ready and Bluetooth (SBC and AAC). The MusicCast app controls streaming services, files on your phone and other MusicCast devices around the home.
Built for sound
The rounded cabinet avoids parallel surfaces, which Yamaha says helps suppress internal standing waves. A 5 mm aluminium plate on top is screwed on to stiffen the enclosure. Yamaha offers the NX-70A in black and white.

Is it right for you?
A great fit if you…
- Want hi-fi sound from two speakers without a separate amplifier
- Want one cable from the TV for TV sound
- Stream from Spotify, TIDAL, AirPlay 2, Google Cast or Roon
- Want the room calibrated with the supplied microphone
Worth knowing
- Yamaha says the speakers connect to each other wirelessly; a LAN cable for a wired connection is in the box
- Both speakers need mains power
- Yamaha lists an RCA subwoofer output
- Yamaha lists a dedicated stand, the SPS-70A, sold separately
Build your system
The NX-70A has its own amplifier, so the speakers, a source and a TV are all you need.
- Stands: Yamaha lists the Yamaha SPS-70A speaker stands as the dedicated stand for the NX-70A.
- Subwoofer: A powered subwoofer can connect to the RCA subwoofer output.
- Alternatives: Browse more wireless audio or bookshelf speakers.
Specifications
Speakers
| Type | 2-way bass-reflex |
|---|---|
| Woofer | 13 cm (5-1/4 inch) Harmonious Diaphragm cone |
| Tweeter | 3 cm (1-1/4 inch) Harmonious Diaphragm dome |
| Frequency response | 50 Hz - 21 kHz (-10 dB) |
| Output power | Woofer 100 W; tweeter 60 W |
Connections
| Inputs | Stereo mini jack, optical, HDMI (eARC/ARC), LAN (Ethernet), USB Type-A (music playback and firmware update), YPAO microphone input |
|---|---|
| Outputs | RCA subwoofer output, LAN (wired speaker connection) |
| Secondary speaker | LAN (wired speaker connection) |
Network and room correction
| Streaming | Server, net radio, AirPlay 2, Spotify Connect, TIDAL Connect, Google Cast, Roon Ready |
|---|---|
| File formats | MP3, WMA, MPEG-4 AAC, WAV, FLAC, ALAC, AIFF, DSD |
| Bluetooth | Yes (SBC/AAC) |
| YPAO | PEQ, Reflected Sound Control (R.S.C.), YPAO Volume |
General
| Standby power | 2.0 W |
|---|---|
| Dimensions (W x H x D) | 189 x 333 x 234 mm |
| Weight | 5.7 kg (primary), 5.4 kg (secondary) |
Details from the Yamaha Australia NX-70A product and specifications pages.
What is in the box
- Remote control
- 2 AAA batteries
- 2 power cables (2 m)
- HDMI cable (2 m)
- LAN cable (3 m) for wired L/R connection
- YPAO microphone (6 m)
- Cardboard microphone stand
- Quick guide and safety guide
Questions people ask
Do I need a separate amplifier?
No. Yamaha says the amplifier and speaker are designed as a pair, and the NX-70A has built-in amplification.
How do I connect it to my TV?
Through HDMI eARC/ARC. Yamaha says CEC lets you control power and volume with the TV remote.
Which streaming services work?
Yamaha lists Spotify Connect, TIDAL Connect, AirPlay 2, Google Cast and Roon Ready. It also lists Bluetooth (SBC/AAC).
Do the two speakers need a cable between them?
No. Yamaha says they connect wirelessly. A LAN cable is supplied if you prefer a wired connection.
Is there a stand?
Yes. Yamaha lists the SPS-70A stand for the NX-70A.