The Icon A-50 is a streaming integrated amplifier by Onkyo that delivers 110 watts x 2 channels into 8 ohms and 180 watts x 2 channels into 4 ohms. It was released in 2025. It is a 2-channel design using a Class A/B output stage. A minimum impedance of 4 ohms makes it compatible with a wide range of loudspeakers. It has a built-in DAC, so you can play digital sources directly with no separate DAC unit needed. It also has a phono input, so a turntable can connect straight to it. The Onkyo Icon A-50 has an MSRP of $1,600.
There are 4 Onkyo amplifiers in our database. Below you can see the main specs of these amps.
Onkyo Integrated Amplifier Series
Performance Specs
One of the most important factors when deciding on an integrated amplifier is its power ratings and compatibility with your speaker's impedance requirements. The Onkyo Icon A-50 is rated at 110 watts RMS into 8-ohms. Onkyo provides this wattage at a THD (Total Harmonic Distortion) of 1% which is an important indicator of distortion at the given values (lower THD is better).
Here are the main highlights of its performance specs:
- 110 watts into 8-ohms (20 Hz-20 kHz) at 1%
- 180 watts into 4-ohms
- 4-ohms Min Impedance (allows compatibility with a wide range of loudspeakers)
- 104dB Signal to Noise Ratio
How loud will 110 watts actually play in your room? →
Wiring more than one pair of speakers to it? Check the load first →
Which speakers suit the Onkyo Icon A-50?
110 W into 8 ohms, 180 W into 4, rated down to 4 ohms.
We rank every passive speaker we cover against it on power, impedance safety and current
delivery.
Need more power?
Onkyo Icon A-50 is rated at 110 watts into 8 ohms, which puts it in our 91 to 120 watts band. The next band up is 121 to 180 watts, which is worth about 1.5dB more output. That is a real difference in headroom on peaks, and a modest one in how loud the system plays - power and loudness are not the same thing.
Before buying watts, check what your speakers actually need: the amp and speaker matcher works it out from their sensitivity, impedance and your room. Plenty of systems are better served by the 61 to 90 watts band and better speakers.
When pairing the Onkyo Icon A-50 with a passive Bookshelf (Stand mount) or Passive Floor Standing (Tower) speaker, you have to check if their Max Power Range is below the max wattage of the amp for the given impedance levels.
Operating your amp outside of this max range may damage the speakers.
Inputs and Outputs
Besides the performance specs of the Onkyo Icon A-50, the next important feature set that you have to evaluate is the input and output selections that it offers.
Inputs
- Phono Input
- 1 Optical Digital Input
- 1 Coaxial Digital Input
- USB Input
Outputs
- Speaker Outputs
- Preamp Outputs
- 1/4 Headphone Output
Bluetooth Connectivity
Onkyo Icon A-50 features built-in Bluetooth 5.1 for wireless music streaming from your Bluetooth-enabled devices such as Apple iPod/iPhone/iPad, Android smartphone/tablet, Windows PC, Mac computers/laptops.
Among the amps in the same price range, these are the 5 amps that have Bluetooth Connectivity:
DAC and Digital Music
The Onkyo Icon A-50's built-in DAC allows the connection of digital sources directly, eliminating the need for an external DAC.
Onkyo Icon A-50 Pros and Cons
Drawn from the published figures on this page, not from listening.
- ✓110 watts per channel into 8 ohms, 180 into 4.
- ✓Signal-to-noise ratio of 104dB, so the amplifier itself should be inaudible between tracks.
- ✓Built-in DAC handling 32-bit / 768, so a TV, computer or streamer can connect digitally with nothing in between.
- ✓Digital inputs cover 1 optical, 1 coaxial and USB.
- ✓Phono stage built in, so a turntable needs no separate preamplifier.
- ✓Streams over the network without a separate streamer: AirPlay 2, Chromecast built-in and Roon.
- ✓Bluetooth (version 5.1) for playing straight from a phone.
- ✓Pre-outs (Yes) leave room to add a power amplifier or an active subwoofer later.
- ✓Headphone output (1/4).
- ✓Detachable mains lead (IEC 2-prong).
- Nothing the published specs count against it.
Onkyo Icon A-50 External Dimensions and Weight
Onkyo Icon A-50 has external dimensions of (H x W x D) 5-5/16 x 17-1/8 x 14-13/16 inch (134.9 x 435.0 x 376.2 mm ). The unit weighs
10.61 kg (23.4 lbs).
Base Surface Area
Base surface area of an integrated amplifier may become an important decision factor when the space in your room or desk is limited.
The base area of the Onkyo Icon A-50 is approximately 1636.5cm2 / 253.7inch2.
- Width: 435.0mm (17-1/8")
- Height: 134.9mm (5-5/16")
- Depth: 376.2mm (14-13/16")
- Weight: 10.61 kg (23.4 lbs)
- Base Surface Area: ~1636.5cm2 / 253.7inch2
- Volume: ~22.1 liter / 5.8 gallon
Warranty
2 Years of parts warranty and 2 Years of labor warranty is generally provided for the Onkyo Icon A-50 by the manufacturer.
| General |
| Brand |
Onkyo |
| Full Model Name |
Onkyo Icon A-50 |
| Release Date |
2025 |
| Amplifier Type |
Integrated Amplifier |
| Number of Channels |
2 |
| Amp Class |
Class A/B |
| Amplifier Technology |
Solid State |
| Performance |
| Watts RMS per Channel into 8-ohms |
110 watts |
| Watts RMS per Channel into 6-ohms |
N/A |
| Watts RMS per Channel into 4-ohms |
180 watts |
| Frequency Bandwidth |
20 Hz-20 kHz |
| THD |
1% |
| Minimum Impedance |
4 |
| Signal to Noise Ratio |
104 dB |
| Digital Music |
| Built-in DAC |
Yes |
| Bluetooth |
Yes |
| WiFi |
802.11ac |
| Ecosystem |
| Apple AirPlay |
Yes |
| Apple AirPlay2 |
Yes |
| DTS Play-Fi |
No |
| Chromecast built-in |
Yes |
| Roon |
Ready |
| HEOS |
No |
| BluOS |
No |
| CONNECTIONS |
| Phono Input |
Yes |
| Optical Digital Inputs |
1 |
| Coaxial Digital Inputs |
1 |
| USB Input |
Yes |
| Preamp Outputs |
Yes |
| Pre-out / Main-in Loop |
No |
| Headphone Output |
1/4 |
| Removable Power Cord |
IEC 2-prong |
| PHYSICAL SPECS |
| Height |
134.9mm (5-5/16") |
| Width |
435.0mm (17-1/8") |
| Depth |
376.2mm (14-13/16") |
| Weight |
10.61 kg (23.4 lbs) |
| OTHER |
| Parts Warranty |
2 Years |
| Labor Warranty |
2 Years |