Onkyo Icon A-50 Integrated Amplifier

Onkyo A-50: A Full Hi-Fi System's Worth of Parts in One Chassis

The Onkyo A-50 Network Integrated Amplifier is part of Onkyo's Icon Series. It combines a Class AB power amplifier, a preamp, a DAC, a phono stage and a network streamer in one box.

Onkyo rates it at 110 watts per channel into 8 ohms and 180 watts into 4 ohms. It comes in Black or Silver.

Class AB Power With a Three-Stage Output

The amplifier uses a three-stage Inverted Darlington output stage, which Onkyo says drives high current with low distortion. Custom 10,000 µF capacitors and a copper bus bar feed it.

There is no cooling fan, so nothing whirs during quiet passages. An extruded aluminum heat sink and a 5 mm aluminum front panel help keep vibration down.

A 32-Bit DAC With Onkyo's DIDRC Circuit

Digital sources run through a 32-bit/768 kHz stereo DAC. Onkyo's patented DIDRC circuit sits in the DAC's analog filter and is designed to reduce high-frequency noise from digital sources.

Dirac Live Room Correction Built In

Dirac Live measures your room using the setup-mic input and corrects the response at your listening seat. A limited version is included, and the full version is available as a separate license.

How the A-50 Fits Your System

It drives speakers rated from 4 to 16 ohms, from bookshelf models to large floorstanders. Three pairs of RCA inputs and a moving magnet or moving coil phono input cover analog sources.

For digital, there is HDMI ARC for a TV, one coaxial input, two optical inputs and a USB-A port for music files on a storage drive. It streams over Wi-Fi or Ethernet and accepts Bluetooth with aptX HD.

Built-in services include Spotify Connect, TIDAL Connect, Qobuz Connect, Amazon Music, Qplay, TuneIn, AirPlay 2 and Chromecast. It is also Roon Ready, and the Onkyo Controller app runs it from your phone.

What it will not do: it has no balanced XLR inputs, and it is not rated for speakers below 4 ohms. It is a two-channel amplifier, not a surround receiver.

What Reviewers Are Saying

Ed Selley, The EAR (April 2026): "This is a truly formidable offering and one that is likely to be tricky to beat."

Gene Hopstetter, Secrets of Home Theater and High Fidelity (July 2026): "The first words that came to mind when I was listening to the Onkyo were "authoritative" and "effortless."" He summed it up: "And its gorgeous sound matches its gorgeous looks."

Who Is This Integrated Amplifier Best For?

• Vinyl listeners — the built-in phono stage handles both moving magnet and moving coil cartridges.
• Streamers — Roon Ready, AirPlay 2, Chromecast and the major Connect services are built in, with no extra box.
• TV and music in one system — HDMI ARC brings your TV's sound through your stereo speakers.
• Rooms that sound uneven — Dirac Live corrects the response for your room and seat.
• Not for — anyone who needs balanced XLR inputs or surround sound.

How Does It Connect to Your System?

• Connect your left and right speakers to the speaker terminals.
• Plug in your sources: turntable to the phono input, CD player or other analog gear to the RCA inputs, and your TV to HDMI ARC.
• Join it to your network by Wi-Fi or Ethernet, then set it up in the Onkyo Controller app.
• Run Dirac Live room correction using the setup-mic input.

The A-50 comes in Black or Silver.

Pairs Well With

Build the rest of your system around the A-50:

• Bookshelf speakers — for smaller rooms and desktop systems.
• Floorstanding speakers — 180 watts into 4 ohms gives larger speakers plenty to work with.
• Turntables — plug straight into the MM/MC phono input.
• Speaker cables — to connect it all.

Frequently Asked Questions

Does the A-50 have a phono stage?

Yes. It has a dedicated phono input that works with both moving magnet (MM) and moving coil (MC) cartridges.

Is it Roon Ready?

Yes. It is also compatible with AirPlay 2, Chromecast, Spotify Connect, TIDAL Connect and Qobuz Connect.

Is Dirac Live included?

A limited version of Dirac Live is built in. The full version is available as a separate license.

Can I connect my TV?

Yes. Use the HDMI ARC input, or one of the two optical inputs or the coaxial input.

Will it drive 4-ohm speakers?

Yes. Onkyo rates it for speakers from 4 to 16 ohms, with 180 watts per channel into 4 ohms.

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