Product record · Portable DAC / headphone amplifier

Questyle M15i

L2 · Documented recordA premium wired family option, justified only when its exact implementation solves a need beyond M15C.

Higher-tier portable USB DAC/headphone amplifier with current-mode amplification and 3.5 mm plus 4.4 mm headphone outputs.

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M15iPortable DAC / headphone amplifier
System role
Portable DAC / headphone amplifierConfirm the complete connection path
Documented official version
No recorded versionNo dated release recorded
Independent test scope
No dated SPL test recordedPublished scope and limitations remain separate
Source checked
2026-09-24A source-check date is not a new device test
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Firmware & software

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Tests & evidence checkpoints

1 record
  1. Questyle M15i primary-source status checkpoint
    Evidence checkpointPrimary-source Verified
    Details

    Current product identity verified; functional behavior remains Awaiting SoundPath Lab test unless separately recorded

    Version / scope
    Firmware/version unknown
    Source type
    Brand official product page
    Source checked
    2026-09-07
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    A manufacturer’s fix claim is separate from an independently verified result. A dated observation does not establish a model-wide failure rate.

One record is currently documented.

Complete history: 1 records. Product, brand and update views use the same canonical event identifiers. Event date and source-check date remain distinct.

System role

Where it fits

A premium portable USB DAC/headphone amplifier for 3.5 mm and 4.4 mm listening.

Limits: M18i's battery Bluetooth role, a desktop hub, analogue preamp or proven high-power amplifier.

Evidence & support

Keep the conditions visible

M15i retains the bus-powered wired role. Buyers should compare load, source and price before paying above M15C.

Full test scope, specifications & owner feedback ↓
Full specifications, test scope, existing assessments & owner feedback

SoundPath Lab · Verified product profile

Questyle M15i

Higher-tier portable USB DAC/headphone amplifier with current-mode amplification and 3.5 mm plus 4.4 mm headphone outputs.

CategoryPortable DAC / headphone amplifierStatusCurrent / sold by official or authorized channelsReleaseCurrent generation; exact launch date not independently verifiedMarketsNorth America · Europe · Asia-Pacific; availability varies by regionPrice$189–$299 dated rangePrice checked2026-08-23

Verified data

Category-specific specifications

BrandQuestyle
ModelM15i
Product categoryPortable DAC / headphone amplifier
Digital inputUSB-C
Headphone outputs3.5 mm and 4.4 mm balanced
PlatformApple MFi-supported portable DAC/amp
AmplificationQuestyle current-mode stages

Unknown fields are not treated as supported. Services, firmware behavior and regional availability may change after the checked date.

System fit

Best for / not ideal for

Best for

  • Premium portable wired listening
  • Balanced IEM cables
  • Apple and USB-C source devices

Not ideal for

  • Wireless-only listening
  • Desktop input switching
  • Users who only need an entry dongle

SoundPath verdict

What matters beyond the spec sheet

Strengths

  • Premium portable build
  • Single-ended and balanced outputs

Weaknesses

  • Large price step above M15C

Biggest limitation

Its value depends on needing the higher-tier portable platform.

Best alternative

Questyle M15C for lower-cost balanced output.

Best-value use case

A premium portable front end for high-quality IEMs.

Knowledge graph

Reviews, comparisons, guides and risks

Reviews & explainers

No dedicated review is published yet.

Firmware

Latest known software status

Latest known version
See official support page / tracker
Updated
Not separately verified
Last checked
2026-08-23
Notes
No separate current version was verified. Check the exact model and hardware revision on the official support page before updating.

Purchase verification

Available channels

OfficialOfficial product / store pageglobal · checked 2026-08-23

Official channel is listed first. No unverified marketplace or variant link is included.

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