If you've seen our coverage of the Onkyo Icon Series, you already know Onkyo is in the middle of a serious comeback. For years the brand was best known for AV receivers and home theater gear, but at the end of 2024 it made a deliberate statement that it was returning to pure hi-fi. The Muse Y-40 and Muse Y-50 are two of the clearest results of that shift: network streaming integrated amplifiers built to replace an entire rack of separates with one box.

What Is a Network Streaming Integrated Amplifier?

A network streaming integrated amplifier is a modern all-in-one component that does the job of several traditional hi-fi pieces at once. Normally you'd need a network streamer to pull music from the internet or your home network, a DAC to convert that digital signal to analog audio, a phono preamp if you're spinning vinyl, and an amplifier to actually drive your speakers. That's four boxes, four power supplies, a drawer full of interconnects, and a fair amount of shelf space.

The Muse Y-40 and Y-50 fold all of that into a single chassis under four inches tall. This category has gotten crowded, with no shortage of options on the market, so the real question is what sets these two apart from the competition and from each other.

Shared Design and Sound Foundation

Both models share an identical chassis: 13.8 inches wide, 3.9 inches tall, and 13.3 inches deep, with an aluminum front panel and a clean, understated look. The top plate has heat dissipation vents cut in a geometric pattern called San Kuzushi, a traditional Japanese design motif and a quiet nod to Onkyo's roots as an Osaka company founded in 1946. Both are available in black or silver.

The front panel is built around a large tactile volume knob and a 5.46 inch color LCD display. It's not a touchscreen, and it doesn't stretch edge to edge, so if you're after a display you can tap directly or one that fills the whole faceplate, this isn't that. What it does handle well is the basics: album art, track metadata, file resolution, and a VU meter that's easy to read from across the room.

The shared sound foundation comes down to the Axign Class D platform, which uses high current MOSFET output transistors to drive demanding speakers with confidence. Where standard digital amps can sound thin or lose control under load, Axign's design monitors and corrects the audio signal right at the speaker terminals. The result is the kind of punchy bass and clean detail you'd typically expect from a stack of separates, and because the signal stays digital from the streamer all the way to the output stage, you avoid the noise that can creep in during analog handoffs.

Connectivity

What You Get on Both Models

On the analog side, both models offer three pairs of RCA inputs, which is generous for this category. Most competing streaming amps give you one input, maybe two. If you've got a CD player, a tape deck, or any other source you want permanently patched in, three inputs is a real advantage.

On the digital side, both include a coaxial input, an optical Toslink input, a front-facing USB-A port for playing files off a drive, and HDMI ARC for pulling audio from your TV while still using your TV remote for volume control. You also get a pre-out for adding a separate power amp down the line, a front headphone jack with a 6.3mm connector that supports a wide 13 to 600 ohm impedance range, built-in Wi-Fi, wired Ethernet, and Bluetooth with SBC and AAC support. There's no aptX or LDAC on either model, so if you do a lot of wireless listening from an Android phone, that's worth keeping in mind.

For streaming services, both support Spotify Connect, TIDAL Connect, Qobuz Connect, Apple AirPlay 2, and Google Chromecast built in, with the Onkyo Controller app handling setup, browsing, and full control from iOS or Android. One notable gap on both models is Roon Ready certification, which competitors like the Marantz M1 and the Eversolo Play do support. If you're a committed Roon user, that's worth factoring into your decision.

Phono Stage

Where the Y-40 and Y-50 First Diverge

Both models include a built-in phono stage, which is a real convenience if you're spinning vinyl and don't want to budget for a separate phono preamp on top of everything else. This is also where the two models first split from each other.

The Y-40's phono stage handles moving magnet cartridges only. The Y-50 handles both moving magnet and moving coil. Moving coil cartridges output a much lower voltage signal and need a more sensitive, lower noise preamp stage, and they're typically found on mid-range to high-end turntable setups. If your turntable uses a moving coil cartridge, or you're planning to upgrade to one, the Y-50 is the one you need. If you're running a moving magnet setup, the Y-40 handles it without compromise.

Onkyo Muse Y-40 vs Y-50

Power, Room EQ, and Other Differences

On power alone, the Y-50's jump to 125 watts into 8 ohms and 250 watts into 4 ohms gives it meaningfully more headroom for larger rooms, louder listening, and speakers with lower sensitivity or lower impedance loads. The Y-40 is more than capable for most bookshelf speakers in a normal sized room, but if you're running large floorstanders, a room over 400 square feet, or speakers that dip below 4 ohms in the bass, the Y-50's extra reserves start to matter.

The Y-50 also adds Onkyo Room EQ, the brand's built-in room calibration system. You run it through the app using your phone's microphone, it measures your room's acoustic characteristics, and it applies correction for bass buildup in corners and reflections off parallel walls. It's about as close as you get to a quick fix for an imperfect room, and most listening rooms are imperfect to some degree. The Y-40 skips this entirely, and at a $500 difference between the two models, that's a notable gap, especially since some cheaper competitors in this category include room correction standard.

On the video side, the Y-50 adds a full HDMI output alongside its ARC input, so you can run a game console or Blu-ray player into the Y-50 and pass video straight through to your TV. It handles 4K at 120 frames per second and 8K at 60 frames per second, with VRR and ALLM support for gaming. The Y-40 only offers HDMI ARC for pulling audio from the TV, with no video passthrough. The Y-50 also adds a subwoofer pre-out with an adjustable crossover, which the Y-40 doesn't have, so if a 2.1 setup with a sub is in your plans, the Y-50 is built for that.

How They Sound

A Hands-On Comparison

We paired both models with a set of Klipsch RP-600M II bookshelf speakers and started with "Sultans of Swing" by Dire Straits, a recording that's essentially a masterclass in guitar texture and stereo imaging and rewards an amplifier that can resolve fine detail without smearing transients.

Through the RP-600M II on the Y-40, the opening guitar had real bite, with clean and immediate pick attack that confirmed the Axign platform is doing its job on transients. The Klipsch horn tweeter is already quite revealing, and the Y-40 fed it cleanly enough that the detail came through without ever turning harsh. Mark Knopfler's guitar sat slightly right of center exactly where it should, and when the full band came in, the soundstage held its shape rather than collapsing. The low end stayed controlled and fast rather than bloated.

Switching to the Y-50 on the same track, the biggest difference wasn't volume. It was headroom. Even at moderate listening levels, the amplifier felt like it had more in reserve, and that ease at the top of the dynamic range is something an experienced listener will notice even without pushing the volume. The soundstage opened up slightly and the bass carried a touch more weight without losing its tightness.

The second track was "The Chain" by Fleetwood Mac, specifically for the bass line in the breakdown section, one of the most recognizable low-end moments in rock and a solid stress test for bass control and dynamic contrast. On the Y-40, the bass came in with authority. It was clean and punchy, and it didn't blur into the lower midrange the way some Class D designs can when the bass gets demanding. The drum hit right before the full band re-enters landed sharp and physical, and the guitars on top had presence without crowding each other. Through the Y-50, the bottom end on that same bass line carried more weight and body, and the dynamic jump from the quiet breakdown back into the full arrangement felt more dramatic, again pointing back to that headroom advantage.

It's worth noting that the RP-600M II is a high sensitivity speaker, which actually makes a strong case for the Y-40. You won't feel like you're leaving power on the table with this pairing. Where the Y-50's extra power becomes meaningful is when you move to larger, less sensitive speakers, like a floorstander rated around 87 or 88 decibels in a bigger room. That's where 250 watts versus 150 watts into 4 ohms turns into something you can actually hear.

Onkyo Muse Y-50 vs Onkyo Icon A-50

At the $1,499 price point, Onkyo also offers the Icon A-50, which gives you two very different paths to a complete one-box system. The Muse Y-50 is the modern pick, using Axign Class D technology to deliver 250 watts from a sleek, four inch chassis that fits almost anywhere, ideal if you want high resolution streaming and serious power without visual bulk.

The Icon A-50 is built for someone who wants a traditional, full-size component. It swaps the compact Class D design for a classic Class AB amplifier and adds Dirac Live, one of the most capable room correction systems available. Both eliminate the need for a separate streamer, DAC, or phono preamp, so the choice comes down to whether you value the Muse's compact, high power efficiency or the Icon's classic sound and room tuning precision.

Which One Should You Buy?

The Y-40 at $999 is for someone who wants to simplify without giving anything up. If you've got a turntable, a streaming setup, maybe a TV in the loop, and you want it all running through one clean, good looking box with enough power for a solid pair of bookshelf speakers, the Y-40 covers it.

The Y-50 at $1,499 is for someone with a bigger room, more demanding speakers, a moving coil turntable setup, or anyone who wants room correction and a proper subwoofer output built in. It's the more complete product, and having spent time with both, the power difference is clear and audible once you pair it with the right speakers.

Frequently Asked Questions

What is the difference between the Onkyo Muse Y-40 and Y-50?

The Y-50 adds moving coil phono support, more power (125W vs 75W into 8 ohms), Onkyo Room EQ, a full HDMI output for video passthrough, and a subwoofer pre-out with adjustable crossover. The Y-40 covers moving magnet phono only, has less power, and lacks room correction, video passthrough, and a sub output.

Does the Onkyo Muse Y-40 have a phono stage for vinyl?

Yes, the Y-40 has a built-in phono stage, but it only supports moving magnet cartridges. If your turntable uses a moving coil cartridge, you'll need the Y-50 instead.

Can the Onkyo Muse Y-50 pass video through HDMI?

Yes. The Y-50 includes a full HDMI output that can pass 4K at 120Hz or 8K at 60Hz from a connected source like a game console or Blu-ray player, with VRR and ALLM support. The Y-40 only has HDMI ARC, which receives audio from a TV but doesn't pass video through.

Is Roon supported on the Onkyo Muse Y-40 or Y-50?

No, neither model currently offers Roon Ready certification. Both support Spotify Connect, TIDAL Connect, Qobuz Connect, AirPlay 2, and Chromecast built in.

How much power do the Onkyo Muse Y-40 and Y-50 deliver?

The Y-40 delivers 75 watts per channel into 8 ohms and 150 watts into 4 ohms. The Y-50 delivers 125 watts per channel into 8 ohms and 250 watts into 4 ohms.

Does the Onkyo Muse Y-50 include room correction?

Yes, the Y-50 includes Onkyo Room EQ, which uses your phone's microphone through the Onkyo Controller app to measure your room and apply correction for issues like bass buildup and wall reflections. The Y-40 does not include room correction.

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