The Yamaha WXA-70A Compact Streaming Amplifier combines powerful stereo amplification, an ESS SABRE ES9039Q2M DAC, and Yamaha MusicCast in a space-saving premium design. Stream high-resolution music with AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, or Roon, and connect your TV through HDMI eARC for enhanced stereo sound. YPAO room calibration, extensive source connectivity, and smart-home integration make the WXA-70A an exceptionally versatile centerpiece for a modern Hi-Fi system.
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Yamaha WXA-70A Compact Streaming Amplifier

Bring premium Hi-Fi performance, modern music streaming, and TV audio together with the Yamaha WXA-70A Compact Streaming Amplifier. Designed to transform passive speakers into a sophisticated connected audio system, the WXA-70A combines powerful Class-D amplification, an audiophile-grade ESS SABRE ES9039Q2M DAC, Yamaha MusicCast multi-room technology, and extensive wired and wireless connectivity in a compact aluminum chassis. Whether you're streaming high-resolution music, listening to a connected audio source, or upgrading your TV sound through HDMI eARC, the WXA-70A delivers detailed, dynamic, and natural Yamaha Hi-Fi sound.

Yamaha's proprietary DAC on Pure Ground circuit architecture creates a clean electrical environment for delicate analog audio signals, helping preserve musical nuance, clarity, and realism. The rigid, vibration-resistant aluminum enclosure and premium gold-plated speaker terminals further support clean, expressive playback, while YPAO room calibration with Reflected Sound Control automatically analyzes your listening space and optimizes performance for more accurate imaging and tonal balance.

The WXA-70A is equally capable as the heart of a modern entertainment system. HDMI eARC/ARC provides a convenient one-cable connection to a compatible TV with TV-remote power and volume control, while adjustable Dialogue Level improves vocal intelligibility for movies, television, and sports. Music can be streamed over Wi-Fi using AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, Roon Ready, internet radio, and network server playback, with Bluetooth support available for convenient wireless listening.

For whole-home audio, Yamaha MusicCast lets you control compatible devices from one app, select sources, manage playback, adjust settings, and link rooms together. Integration features including Control4 compatibility, browser-based Web Setup, an IR input, and a 12V trigger output also make the WXA-70A well suited for professionally installed audio and smart-home systems.

Specifications

• Product Type: Compact wireless streaming amplifier
• Amplification: Class-D stereo amplification
• Output Power, 120V/230V Models: 55 W + 55 W into 8 ohms, 20 Hz–20 kHz, 0.06% THD, 2 channels driven
• Output Power, 120V/230V Models at 4 Ohms: 105 W + 105 W into 4 ohms, 20 Hz–20 kHz, 0.06% THD, 2 channels driven
• Maximum Output, 120V/230V Models: 165 W into 4 ohms, 1 kHz, 10% THD, 1 channel driven
• DAC: Audiophile-grade ESS SABRE ES9039Q2M digital-to-analog converter
• Circuit Technology: Yamaha DAC on Pure Ground architecture
• Room Calibration: Yamaha YPAO with Parametric EQ, Reflected Sound Control (R.S.C.), and YPAO Volume
• Analog Audio Input: RCA input
• Digital Audio Input: Optical input
• HDMI: HDMI with CEC, eARC, and ARC
• USB: USB Type-A for music playback and firmware updates
• Speaker Output: Premium speaker terminals
• Speaker Terminal Finish: Gold-plated
• Subwoofer Output: Yes
• Control Trigger Input/Output: 0 inputs / 1 output
• 12V Trigger Output: Yes
• Remote Control Input/Output: 1 input / 0 outputs
• IR Input: Yes
• Network Connectivity: Wi-Fi and wired network connectivity
• Network Playback: Server playback and internet radio
• AirPlay: AirPlay 2
• Google Cast: Supported
• Spotify Connect: Supported
• TIDAL Connect: Supported
• Qobuz Connect: Supported
• Roon: Roon Ready
• Bluetooth: Yes
• Bluetooth Codecs: SBC and AAC
• MusicCast: Yamaha MusicCast multi-room audio and app control
• Supported File Formats: MP3, WMA, MPEG-4 AAC, WAV, FLAC, ALAC, AIFF, and DSD
• TV Control: Compatible TV remote can control power and volume through HDMI CEC/eARC/ARC
• Dialogue Level: Adjustable dialogue enhancement for improved vocal clarity
• User Controls: MusicCast app, included remote control, and front-panel controls
• Display: Front-panel OLED display
• Smart Home Integration: Control4 compatibility
• Web Setup: Browser-based system and network configuration
• Wireless Control: Wi-Fi and Bluetooth can be independently disabled during installation
• Enclosure: Rigid aluminum construction with vibration-resistant design
• Standby Power Consumption: 2.0 W
• Dimensions (W x H x D): 8-5/8" x 2-7/8" x 10-1/2" (220 x 73 x 267 mm)
• Weight: 5.7 lb (2.6 kg)
• Included Accessories: Remote control, AAA batteries, 2 m power cable, 6 m YPAO calibration microphone, Quick Guide, and Safety Guide

What It's Great At

• Transforming Passive Speakers into a Modern Streaming System: Built-in stereo amplification and extensive network streaming eliminate the need for separate streaming and amplification components.
• Delivering Detailed Hi-Fi Sound: The ESS SABRE ES9039Q2M DAC, DAC on Pure Ground architecture, and carefully engineered aluminum chassis help preserve clarity, dynamics, and musical detail.
• Optimizing Sound for Your Room: YPAO with Reflected Sound Control analyzes room acoustics and adjusts playback for better balance, imaging, and clarity.
• Upgrading TV Audio: HDMI eARC/ARC makes it easy to route television sound through a high-quality stereo speaker system while retaining convenient TV-remote operation.
• High-Resolution Music Streaming: Extensive format support and compatibility with AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, and Roon provide flexible access to digital music.
• Whole-Home Music: MusicCast can distribute music and connected audio sources to compatible Yamaha devices throughout the home.
• Custom Installation: Control4 compatibility, Web Setup, IR input, independently switchable wireless radios, and a 12V trigger make the WXA-70A suitable for professionally integrated systems.

FAQ Section

Q: What is the Yamaha WXA-70A?
A: The WXA-70A is a compact stereo streaming amplifier that combines Yamaha Hi-Fi amplification, high-resolution network music playback, MusicCast multi-room audio, HDMI eARC, room calibration, and extensive wired and wireless connectivity in a single component.

Q: How much power does the Yamaha WXA-70A provide?
A: On 120V/230V models, it delivers 55 watts per channel into 8 ohms or 105 watts per channel into 4 ohms from 20 Hz to 20 kHz at 0.06% THD with both channels driven.

Q: Can the WXA-70A connect directly to a TV?
A: Yes. HDMI eARC/ARC provides a simple one-cable connection to a compatible television and allows convenient power and volume operation using the TV remote through HDMI control.

Q: Which music streaming platforms does the WXA-70A support?
A: It supports a broad range of streaming options including AirPlay 2, Google Cast, Spotify Connect, TIDAL Connect, Qobuz Connect, Roon Ready playback, internet radio, and network server audio.

Q: Does the WXA-70A support high-resolution audio?
A: Yes. It supports digital music formats including WAV, FLAC, ALAC, AIFF, and DSD, along with MP3, WMA, and MPEG-4 AAC.

Q: What does YPAO do on the WXA-70A?
A: Using the included calibration microphone, Yamaha YPAO analyzes your room and automatically optimizes playback. Reflected Sound Control helps reduce the effects of early room reflections for clearer imaging and a more natural soundstage.

Q: Can I connect a turntable to the WXA-70A?
A: A turntable can be connected through the analog RCA input when the turntable has a built-in phono preamp or when an external phono preamp is used between the turntable and amplifier.

Q: Can the WXA-70A be integrated into a smart home or custom-installed audio system?
A: Yes. It includes Control4 compatibility, browser-based Web Setup, an IR input, a 12V trigger output, and the ability to independently disable Wi-Fi and Bluetooth for flexible professional installation.