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KEF Kube 10 MIE active subwoofer
  • KEF Kube 10 MIE active subwoofer — photo 2
  • KEF Kube 10 MIE active subwoofer — photo 3
  • KEF Kube 10 MIE active subwoofer — photo 4
active subwooferKEFL189%

KEF Kube 10 MIE active subwoofer

250 mm, 300 W RMS · from 34 Hz · sealed · LFE, line, speaker-level · extension 7/10 · room 12–30 m² · mid

70,310 RUB99,000 RUBeachpromoin stock· Moscow (warehouse)
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prices and stock as of 2026-11-05

Audiomania expert verdict

A compact sealed 10-inch subwoofer with a 300 W amplifier and the Music Integrity Engine DSP — for cinema and stereo in 12–30 m², especially when the sub must sit by a wall or in a corner (three correction modes). A 7.1 owner in 12 m² rates it “10 out of 10” for attack speed; for a purely musical system with no budget cap the specialist called the Velodyne DB-8 “noticeably more musical”. AI draft, under review

Ask about KEF Kube 10 MIE

Will it suit your amplifier or room, what else to buy, what to compare with.

03

In brief

Best if you are looking for:

  • a home cinema in 12–30 m² — an owner's 7.1 setup in 12 m² “plays 10 out of 10”; 111 dB and 300 W AI draft, under review
  • the fast, clean bass of a sealed box — “insane attack speed”, “no mud” after a ported sub AI draft, under review
  • wall or corner placement — three DSP modes for the position AI draft, under review
  • amplifiers without a sub-out/pre-out — there is a speaker-level input AI draft, under review
  • a music sub under 100 000 ₽ — “no alternative” in this budget per the specialist AI draft, under review

Keep in mind:

  • without a hard budget the specialist recommended the Velodyne DB-8 — “with almost the same specs… noticeably more musical” AI draft, under review
  • per the owner it needs running-in, and the clean sealed-box bass takes getting used to after a ported sub AI draft, under review
  • the KW1 wireless module is sold separately AI draft, under review
  • the receiver's LFE output goes into one of the line inputs — there is no separate bypass LFE jack (set the 40–140 Hz crossover to maximum) AI draft, under review
04

Product DNA

L189%

A structured sound passport: every value carries a source and a confidence.

Low-end extension
7calculated1
Music fit
7Audiomania specialist0.5
± 1

Alternative value

  • 8 customers0.25

    Единственный отзыв с описанием звука: «10 из 10», «скорость атаки бешеная»

Cinema fit
customer reviews do not mention it
Use scenarios
not yet auditioned
Optimal room area
12–30 m² (10–35)calculated0.5
Tier
midcalculated1
What else you need
interconnectcalculated0.75
05

Sound profile

The profile appears after an Audiomania expert audition.

08

Sound character

Technical reference (no professional listening review in the data): a damped sealed cabinet with a 250 mm driver, a 300 W class D amplifier and the MIE DSP with iBX, 34–140 Hz (±3 dB), 111 dB. The only listening evidence is a 7.1 owner in 12 m²: “insane attack speed”, “no mud”, needs running-in; the specialist considers the Velodyne DB-8 “noticeably more musical”. AI draft, under review[6]

09

Use scenarios

Suits:

  • 5.1/7.1 home cinema in 12–30 m² AI draft, under review
  • stereo and “trifonic” within a 100 000 ₽ budget AI draft, under review
  • placement by a wall or in a corner — DSP modes provided AI draft, under review
  • amplifiers without a sub-out — via the speaker-level input AI draft, under review

Less suited to:

  • a purely musical system with no budget cap — the specialist preferred the Velodyne DB-8 AI draft, under review
  • open plans and halls above 35 m² AI draft, under review
10

Technologies and construction

  • Sealed, damped cabinet

    What it is: A port-less sealed box with internal damping; a 250 mm front-firing driver behind cloth; 15.4 kg.

    Practical benefit: “Fast, focused bass and a more even frequency response” (description); owner: “insane attack speed”, “no mud”.

  • Music Integrity Engine DSP with iBX

    What it is: The patented MIE processor with iBX (Intelligent Bass Extension) analyses the input in real time and adapts the 300 W class D amplifier's parameters.

    Practical benefit: Wider dynamic range and deeper bass “at any volume” (description) — 34 Hz (±3 dB) and 111 dB from a 37 cm box.

  • Three placement DSP modes

    What it is: A correction-mode switch: free space, by the wall, in the corner; plus level, 0/180° phase and a 40–140 Hz low-pass.

    Practical benefit: Compensates the bass gain by a wall or in a corner — the sub can be hidden without losing evenness.

  • Line and speaker-level inputs, Smart Connect, 12 V trigger

    What it is: A stereo RCA line input (one channel doubles as LFE), a 4-pin speaker-level input; Smart Connect signal sensing; a 12 V trigger input.

    Practical benefit: Connects to a receiver and to a stereo amplifier without a sub-out alike; powers up with the system.

  • Socket for the KW1 wireless module

    What it is: A dedicated socket for the KEF KW1 wireless module; the module is sold separately.

    Practical benefit: The sub can go where an interconnect cannot be run.

11

Amplifier requirements

Music fit
7Audiomania specialist0.5
± 1

Alternative value

  • 8 customers0.25

    Единственный отзыв с описанием звука: «10 из 10», «скорость атаки бешеная»

12

Which speakers it suits

  • DALI Opticon 2 MK2 bookshelf speakersrecommended

    118,990 RUB · in stock

    Why

    DALI Opticon 2 MK2 rolls off at 59 Hz: for music we recommend an active subwoofer, crossover ≈60 Hz; hookup: via sub out, pre-out or speaker level — check the amp's outputs.

  • ELAC Debut B6.3 bookshelf speakersoptional

    44,900 RUB · in stock

    Why

    ELAC Debut B6.3 reaches 48 Hz — a subwoofer is optional for music (crossover ≈60 Hz; hookup: via sub out, pre-out or speaker level — check the amp's outputs).

  • KEF Q150 bookshelf speakersoptional

    29,000 RUB · in stock

    Why

    KEF Q150 reaches 51 Hz — a subwoofer is optional for music (crossover ≈60 Hz; hookup: via sub out, pre-out or speaker level — check the amp's outputs).

  • KEF Q750 floorstanding speakersoptional

    99,000 RUB · in stock

    Why

    KEF Q750 reaches 48 Hz — a subwoofer is optional for music (crossover ≈60 Hz; hookup: via sub out, pre-out or speaker level — check the amp's outputs).

16

Comparison with similar models

No similar models in the catalog yet.

17

Specifications

Main

Amplifier power
RMS, W: 300; class: class D
Low-frequency limit
34 Hz (-3 dB)
Maximum SPL
111 dB
Crossover
range, Hz: 40–140; no: LFE bypass
Phase
0/180° switch
Auto-on
yes
Wireless option
yes
Placement DSP
свободное размещение, у стены, в углу

Construction

Enclosure
sealed
Finishes
Black

Drivers

Driver
MM: 250; position: front

Connection

Inputs
LFE, stereo line, speaker level
12 V trigger
yes

Dimensions

Dimensions (W×H×D)
370 × 353 × 370 mm

Weight

Weight
15.4 kg

Box contents

Warranty
24 months
18

Documents

19

FAQ

›A music sub for a Hegel H95 with Penaudio Rebel Two in 20 m², budget up to 100 000 ₽ — will it do, or what else?
“With a hard budget cap this option has no alternative. But starting from the task… I recommend the Velodyne DB-8. With almost the same specs it will be noticeably more musical” (Audiomania specialist, 2025-09-23).
›I have two Sony SA-CS9 subs — will I hear a difference replacing them with one Kube 10 MIE?
The specialist answered privately; there is no public verdict. By design the character will differ: a sealed box with the MIE DSP instead of ported ones — an owner coming from a ported sub writes “it will be a shock… no mud”. Two subs give smoother bass across the room, one is easier to set up; book a demo. AI draft, under review
›How do I connect it to an AV receiver (LFE) and to a stereo amplifier?
To a receiver: the SUB/LFE output → one of the RCA line inputs (“one channel's input can also take the LFE output”), the 40–140 Hz crossover at maximum, the receiver sets the cut. To a stereo amp: pre-out/sub-out → line inputs L/R (crossover 40–140 Hz by the speakers' f3), or the 4-pin speaker-level input from the amp terminals if there are no line outputs.
›Is there a speaker-level input?
Yes — a 4-pin speaker-level input; it can hang off an amplifier with no sub-out or pre-out, in parallel with the speakers.
›Can it go in a corner or right against the wall?
Yes: three DSP modes — “free”, “by the wall”, “in the corner” — compensate the boundary bass gain; the port-less sealed box does not boom near a wall. Pick the mode for the actual spot and trim the level.
›Is there a wireless option?
There is a socket for the KEF KW1 wireless module — the module itself (transmitter + receiver) is sold separately.
›What room size is it for?
By rule 12–30 m² (10-inch driver, 300 W): a 7.1 owner is happy in a treated 12 m², the specialist considered it for stereo in 20 m². The description — “for medium-sized rooms”. AI draft, under review
›Does it switch on automatically? Is there a 12 V trigger?
Yes: Smart Connect signal sensing, a 12 V trigger input and a regular power switch.
›Is it more for cinema or for music?
Both: the sealed box gives fast bass — a 7.1 owner: “for music it is superb, insane attack speed, and for films, needless to say”. In a purely musical system with no budget cap the specialist preferred the Velodyne DB-8 as “noticeably more musical”. AI draft, under review
›Does the subwoofer need a separate amplifier?
No: a subwoofer is a separate active speaker with its own amplifier; connect it to a line output or the speaker terminals.
20

Customer reviews

5.0 of 5 · 4 ratings

  • Александр Н., Псков · 2026-10-24Excellentverified purchase

    Сабвуфер играет 10 из 10, комната подготовлена 12кв.м ДК 7.1 сабвуфер расположен в ближнем поле. Для музыки вообще супер скорость атаки бешеная про кино вообще молчу. Но надо прогревать! У кого до этого был сабвуфер с фазоинвертором будет шок и к звуку придётся привыкать, так как нет грязи.

  • Владимир К., Северодвинск · 2025-12-11Excellentverified purchase

    Ожидания полностью оправдались. Спасибо большое.

22

Audiomania expert opinion

The Kube 10 MIE is the second upgrade of the Kube series with the patented MIE processor (SalonAV tested the whole line). Its practical strengths are the speaker-level input for amplifiers without a sub-out, the 12 V trigger and the three placement DSP modes — budget rivals lack these. AI draft, under review[4]

For stereo with a Hegel H95 and Penaudio Rebel Two in 20 m² an Audiomania specialist called it the only option under 100 000 ₽, yet advised the Velodyne DB-8 for maximum musicality. In short: for cinema and all-round systems a safe choice; for a purely musical one, worth comparing. AI draft, under review[2]