Skip to main content Skip to search Skip to main navigation
19.09.2025 / 20.09.2025
Search Results for
Close search

KEF Kube 12b Subwoofer black

€849.00

per Piece incl. VAT / incl. Shipping

Information
2% Cash Discount
We grant a cash discount when paying by advance transfer.
No longer available
 
Hamm
Stock 0
 
Hamburg
Stock 0
 
Münster
Stock 0

No longer available

Germany
DHL Package

We ship your goods quickly and safely with DHL. After shipping you will receive a tracking number for package tracking.
Product number: 288650
Product­information
Product information Kube 12b Subwoofer black
Productnumber

288650

Perfect for creating a deep and clean rumble in large rooms. The Kube 12b has a 300 Watts Class D amplifier and a large 12-inch driver as well as iBX technology to dynamically extend bass depth.

Hear new dimensions in sound with Kube subwoofers

The Kube 12b effortlessly unleashes explosive power. iBX technology dynamically extends bass depth and KEF’s unique ability to design, build and integrate the driver in-house takes optimisation to a whole new level. Delivering immersive music and home theatre sound that takes you to the heart of the performance.

Immersiveness

Go deep or go home. KEF’s design and engineering team worked in chorus to develop iBX. This Intelligent Bass Extension algorithm creates an extended depth that unlocks the full potential of the custom driver. Giving you unparalleled precision and ultimate synchronicity between amplifier, driver and sealed cabinet.

Easy configuration

Kube subwoofers offer unmatched set up flexibility. A range of LFE, line and speaker-level inputs, phase selection and DSP controlled EQ settings help you get the best from a Kube. Put it in a convenient position, match it to any main speaker or type of music system, and start exploring new depths in the sound.

Integration

KEF is quite possibly the only high-end manufacturer that designs, engineers and assembles the driver, cabinet and circuitry in-house. This level of integration means we are commited to pure sound and the Kube stays true to that ideal. The result is a driver and amplifier that are perfectly in tune.



Amplifier power in RMS: 300 W RMS
Color: black
Condition: New goods
Device depth mm: 410
Device height mm: 410
Device width mm: 393
Directional: no
Frequency response: 22Hz - 140Hz (±3dB)
Inputs: Analog RCA
Operating mode: active
Passive speaker inputs: Single wire
Product type: subwoofer
Promotion: no
Total power W: 300 W RMS
Product number 288650

Perfect for creating a deep and clean rumble in large rooms. The Kube 12b has a 300 Watts Class D amplifier and a large 12-inch driver as well as iBX technology to dynamically extend bass depth.

Hear new dimensions in sound with Kube subwoofers

The Kube 12b effortlessly unleashes explosive power. iBX technology dynamically extends bass depth and KEF’s unique ability to design, build and integrate the driver in-house takes optimisation to a whole new level. Delivering immersive music and home theatre sound that takes you to the heart of the performance.

Immersiveness

Go deep or go home. KEF’s design and engineering team worked in chorus to develop iBX. This Intelligent Bass Extension algorithm creates an extended depth that unlocks the full potential of the custom driver. Giving you unparalleled precision and ultimate synchronicity between amplifier, driver and sealed cabinet.

Easy configuration

Kube subwoofers offer unmatched set up flexibility. A range of LFE, line and speaker-level inputs, phase selection and DSP controlled EQ settings help you get the best from a Kube. Put it in a convenient position, match it to any main speaker or type of music system, and start exploring new depths in the sound.

Integration

KEF is quite possibly the only high-end manufacturer that designs, engineers and assembles the driver, cabinet and circuitry in-house. This level of integration means we are commited to pure sound and the Kube stays true to that ideal. The result is a driver and amplifier that are perfectly in tune.

Read more Close
Amplifier power in RMS: 300 W RMS
Color: black
Condition: New goods
Device depth mm: 410
Device height mm: 410
Device width mm: 393
Directional: no
Frequency response: 22Hz - 140Hz (±3dB)
Inputs: Analog RCA
Operating mode: active
Passive speaker inputs: Single wire
Product type: subwoofer
Promotion: no
Total power W: 300 W RMS

Manufacturer

GP Acoustics GmbH
Nordhofstraße 2
45127 Essen
Germany
info.de@kef.com

Safety Information

Product-specific safety instructions can be found in the operating manual.

Similar Products