The Onkyo A-50 is a 110-watt-per-channel Class-AB network integrated amplifier that merges audiophile engineering with modern streaming. It features an Inverted Darlington output stage, DIDRC noise-reduction, and a 32-bit/768 kHz DAC for clean, dynamic sound. Built-in Dirac Live room correction (full-band upgrade available) optimizes your speakers to your room. With HDMI ARC, MM/MC phono, Wi-Fi, Bluetooth 5.1, AirPlay 2, Chromecast, Spotify/TIDAL/Qobuz/Amazon Music, and Roon Ready, it’s a complete, high-performance two-channel hub.
Get the Details

Onkyo A-50 Icon Series Integrated Amplifier

Meet the Onkyo A-50 Network Integrated Amplifier - an elegant, Class-AB stereo centerpiece that blends classic hi-fi muscle with modern streaming and room correction. A three-stage Inverted Darlington amplifier topology, DIDRC noise-reduction circuitry, and a premium 32-bit/768 kHz stereo DAC deliver clean, dynamic power that brings out the detail, drive, and emotion in your music. The rigid 5 mm aluminum front panel, oval anti-resonant chassis, fan-less cooling, copper bus bar, and custom 10,000 µF capacitors suppress vibration and distortion, while Dirac Live room correction (built-in; full-band upgrade available) tailors response to your space for a bigger, clearer soundstage. With HDMI ARC for TV audio, MM/MC phono, dual digital inputs, USB-A playback, Wi-Fi, Bluetooth® 5.1, AirPlay 2, Chromecast built-in, Spotify/TIDAL/Qobuz/Amazon Music, and Roon Ready support, the A-50 is the streamlined way to power a complete, modern two-channel system.

Onkyo A-50 Integrated Amplifier Full Specifications:

• Model & Finishes: Onkyo A-50 Network Integrated Amplifier (Icon Series); Black (A50SMMM, EAN 4573211155808) / Silver (A50SMMP, EAN 4573211155839)
• Amplifier Topology: Three-stage Inverted Darlington, Class AB
• Power Output (NA): 110 W/ch (8 Ω, 20 Hz–20 kHz, ≤0.08% THD, 2ch driven, FTC)
• Additional Rating: 180 W/ch (4 Ω, 1 kHz, 0.7% THD, 2ch driven)
• Frequency Response (Direct): 10 Hz–100 kHz (+1/–3 dB)
• THD+N: 0.08% (20 Hz–20 kHz, rated output)
• Tone Controls: Bass ±10 dB @ 20 Hz; Treble ±10 dB @ 20 kHz; Direct mode
• Speaker Impedance: 4–16 Ω
• Phono Stage: MM/MC selectable; max input 70 mV (MM, 1 kHz, 0.5%), 7 mV (MC, 1 kHz, 0.5%); rear MM/MC switch & GND terminal
• Input Sensitivity/Impedance (LINE): 200 mV/32 kΩ (RCA); (PHONO): 4 mV/47 kΩ (MM), 0.4 mV/110 Ω (MC)
• S/N Ratio (IHF-A): 104 dB (LINE→SP OUT); 74 dB (PHONO MM→SP); 58 dB (PHONO MC→SP)
• Headphone Output: 75 mW + 75 mW (32 Ω, 1 kHz, 10% THD)
• Headphone Impedance Support: 8–600 Ω; response 10 Hz–100 kHz; 6.3 mm front jack
• Analog Inputs: 4× RCA pairs total (3 line + 1 phono)
• Digital Inputs: 1× optical (TOSLINK), 1× coaxial (RCA); PCM up to 96 kHz/24-bit
• HDMI: 1× HDMI (ARC) with CEC
• USB: 1× USB-A (5 V/1 A) for storage playback (not a PC-USB DAC)
• Outputs: 1× stereo pre-out (RCA), speaker terminals (L/R), headphones
• Networking: Ethernet 10/100; dual-band Wi-Fi (802.11 a/b/g/n/ac)
• Bluetooth: 5.1; receive SBC/AAC; transmit SBC/aptX/aptX HD; A2DP 20 Hz–20 kHz; ~10 m line-of-sight range
• Streaming & Casting: Spotify Connect, TIDAL Connect, Qobuz, Amazon Music, Qplay, TuneIn, Apple AirPlay 2, Chromecast built-in, Roon Ready; Onkyo Controller app
• Room Correction: Dirac Live (stereo) included; optional license for full-bandwidth correction
• Chassis & Build: 5 mm aluminum front panel; oval anti-resonant chassis; extruded aluminum heat sink; fan-less design; copper bus bar; 10,000 µF custom capacitors; DIDRC circuitry
• Dimensions (W×H×D): 435 × 135 × 355 mm (17-1/8″ × 5-5/16″ × 14″)
• Weight: 10.6 kg (23.4 lb)
• Power: 120 V AC, 60 Hz (NA); consumption 350 W; standby (ALL ON) approx. 1.8 W
• Included Accessories: Power cord, remote (RC-991S), speaker setup microphone, documentation

Onkyo A-50 Integrated Amplifier Q&A:

Does the A-50 include room correction, and what’s required for full-bandwidth Dirac Live?

Yes—Dirac Live is built in. The included license provides limited-band correction by default; you can purchase an upgrade license from Dirac to enable full-bandwidth correction.

Can I connect my TV directly?

Yes. The rear HDMI (ARC) input lets your TV send audio to the A-50 and supports CEC for volume and power control from the TV remote.

Is the phono input compatible with both MM and MC cartridges?

It is. There’s a dedicated MM/MC phono stage with a rear panel selector and a ground terminal, plus generous overload margins for both cartridge types.

Which Bluetooth codecs are supported?

When receiving, the A-50 supports SBC and AAC. When transmitting (to Bluetooth headphones, for example), it supports SBC, aptX, and aptX HD.

Can I use the USB port as a computer-audio input?

The USB-A port is for storage playback (flash drives, etc.). For computers, use the optical/coaxial digital inputs, HDMI ARC from a TV, or stream over the network.

What streaming and casting options are built in?

Spotify Connect, TIDAL Connect, Qobuz, Amazon Music, Qplay, TuneIn, Apple AirPlay 2, Chromecast built-in, and Roon Ready, controllable with the Onkyo Controller app.

Will it drive 4-ohm speakers?

Yes. The A-50 supports speaker loads from 4 Ω to 16 Ω.

What’s in the box?

The amplifier, power cord, remote controller (RC-991S), speaker setup microphone, and documentation; batteries are included on some models.

Onkyo A-50 Integrated Amplifier Downloads:

Onkyo A-50 Integrated Amplifier User Manual
Onkyo A-50 Integrated Amplifier Setup Guide
Onkyo A-50 Integrated Amplifier Specification Sheet