Product profile · Powered subwoofer

KEF Kube 12 MIE

A sealed 12-inch powered subwoofer with a 300 W RMS Class-D amplifier plus RCA and speaker-level inputs.

Evidence grade ASnapshot public-beta-2026-08-09-v7Unknown ≠ supported
Record status
Published profile
Evidence checked
2026-08-10
Evidence grade
A
Commercial weight
0
Best for

Where it fits

  • Stereo systems with RCA subwoofer output
  • Older amplifiers needing speaker-level input
  • Users prioritising deeper output over a compact cabinet
  • Manually integrated 2.1 systems
Avoid if

Where it does not fit

  • A very small cabinet is mandatory
  • A proprietary wireless ecosystem connection is required
  • Placement, crossover and target level cannot be assessed
Verified product record

Interfaces and capabilities

Recorded capabilities

Recorded connections

  • Input: RCA line
  • Input: Speaker-level
Key limitationIts large cabinet and final performance depend on room, placement, crossover, listening distance and target SPL; driver size alone is not a room-size verdict.
Change tracking

Firmware and evidence status

No app or firmware dependency is recorded for this wired product. Revisions and specification changes still require rechecking.

Open the official product source ↗

Last source review: 10 August 2026. An omitted feature means “not recorded here”, not automatically “unsupported”.

Connected decisions

Related scenarios and articles

This page is part of the SoundPath knowledge core: static, searchable evidence that connects product records, compatibility rules, scenario recommendations, articles, firmware tracking and reader feedback. Commercial relationship weight is zero.

Member knowledge · editor reviewed

Questions, owner experience and product issues

Join the live member discussion below, or submit structured experience and issue reports for editorial review.

Loading reviewed community records…

Reviewed Q&A

Question center

Owner experience

Submit yours

Product issues

Report issue