Onkyo Muse Y-40

Evidence Profile · L2 · documentation + editorial inference

Onkyo Muse Y-40

Muse Y-40 combines network music and Class D stereo amplification with model-specific TV/phono conditions.

Evidence checked / updated: 2026-10-12. Manufacturer claims and editorial system-fit assessment. No SoundPath Lab listening or measurement test.

Verified documentation

  • Speaker power with conditions: 75W/ch8Ω,20Hz–20kHz,THD0.08%,2ch driven(US FTC);150W/ch4Ω,1kHz,THD0.7%,2ch driven.
  • Analogue and digital inputs: Three RCA line pairs,coax,optical,USB-A storage,Ethernet/Wi-Fi and MM phono.
  • Model differences: HDMI ARC audio input,not the Y-50 video-throughput/room-EQ specification. No dedicated subwoofer output is listed in the model table.
  • Outputs: Stereo speakers4–16Ω,RCA stereo preout and6.3mm headphones. USB-A storage is not a PC USB DAC port.
  • Network and portability: Spotify/TIDAL/Qobuz Connect,AirPlay/Google Cast,Onkyo control app;BT SBC/AAC.350×99×337mm,100–240V mains;4.4kg.

Best for

a stereo passive-speaker system wanting built-in network music,TV audio and the documented phono type

Avoid if

MC phono without a separate stage,Dirac or automatic local stock from a global page

Limits and unknowns

Network services need current apps/accounts and may require subscriptions/region support. The4Ω and8Ω power conditions are different;no actual speaker,room,service or HDMI compatibility was SPL-tested.

Current verdict

A conditional shortlist for a stereo passive-speaker system wanting built-in network music,TV audio and the documented phono type. Decide on the documented role and constraints below; no independent sound-quality ranking is implied.

Why it fits

Muse Y-40 combines network music and Class D stereo amplification with model-specific TV/phono conditions. The buying assessment is an editorial inference from its documented topology, rather than a listening conclusion.

What it can replace

It can cover the specific functions described in this profile when the connected source, load, control and power path meet the stated conditions. Treat a change as solving a concrete interface or workflow need; do not assume an audible improvement from chipset, price, clock or component-count claims.

What it cannot replace

MC phono without a separate stage,Dirac or automatic local stock from a global page

What SoundPath Lab tested

SoundPath Lab checked primary-source model identity, the stated interfaces and specifications, source conflicts and this decision profile. No device was listened to, measured, installed, firmware-retested or endurance-tested for this batch. The maturity assessment below reflects documented decision coverage.

What remains untested

Sound preference, actual noise with your load, room behavior, software and service compatibility, connection stability and long-term reliability remain untested. Vendor measurements remain vendor claims and cannot be read as SPL test results.

System conditions

Use4–16Ω speakers,correct polarity and room ventilation;choose supported stereo TV audio,match phono cartridge type and storage formats. Firmware packages distinguish China and other regions;never cross-flash based on model name alone.

Alternatives by need

Y-50 adds MC,Room EQ,HDMI video routing and a dedicated sub output;Y-40 fits when those extra roles are unnecessary.

Keep or upgrade

Keep a working system when its existing connections and usable level already meet your needs. Before switching, confirm the limitation most relevant to you, the comparison models, all adapters or licenses, and local service. More functions do not by themselves justify replacement.

When to reassess

Reassess after a material firmware/manual change, independently reproduced issue, hardware revision or documented service change. Routine firmware availability does not close an owner issue. No arbitrary future date is needed for unchanged facts.

Ownership evidence

No six-month ownership study was performed. Budget for the actual consumables, battery or tube service where applicable, app/service dependence, and local repair access. Their future durability and availability are unknown unless independently established.

Firmware, manual and support

The model-specific documentation linked below was checked for the signal path and operating conditions. Use documentation matching the actual hardware and market. Warranty, parts supply, repair turnaround and any promised support end date must be checked locally; a downloadable manual is not a support-duration guarantee.

An exact worldwide launch date, globally uniform price, authorized local stock and delivery date were not established unless explicitly stated below. A regional price or launch is not a global availability claim. No defect-free or six-month ownership conclusion is made.

Official model manual

Primary sources

Revision record

2026-10-12 — Promoted from L0 to L2 after model-level evidence review. Stable product identity retained; source conflicts and untested behavior remain visible. L2 is evidence coverage, not independent test acceptance or automatic recommendation.

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