KUBE 12b is a Sealed type Powered Subwoofer by KEF with a frequency range of 22-140 Hz. It features 1 x 12" Not given Woofer, and powered by a Class D 300 watts amplifier.
KUBE 12b is a member of KEF's KUBE series of Powered subwoofers. Below you can see the main specs of these subwoofers as well as review and comparison links.
KEF KUBE Series Subwoofers
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Frequency Response
KEF KUBE 12b has a Frequency response range of 22-140 Hz at ±3dB. With the help of its 1 x 12-inch driver and 300 watts RMS amplifier, the KUBE 12b can go as low as 22 Hz which doesn't quite offer full range sound (20Hz-2kHZ) but it gets really close.
Here we have a comparison of how KUBE 12b's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Powered Subwoofers
High Frequency
Subwoofer Speakers
Among all subwoofers in our database with a max MSRP price of 1000$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the KEF KUBE 12b's 22Hz:
Low-Pass CrossoverKEF KUBE 12b has a variable Low-pass filter (LFP) which lets you choose a frequency level between 40-140 Hz in order to block any frequencies above that point from reaching the amplifier.
Inputs and Outputs
- PreampLevel Inputs: Stereo RCA/LFE
- SpeakerLevel Inputs: No
- SpeakerLevel Outputs: No
- Wireless: No
Wireless Connection
KEF KUBE 12b lets you make a wireless connection to your system with an optional
adapter. Wireless connection helps to minimize the cables running on your floor.
KEF KUBE 12b External Dimensions and Weight
KEF KUBE 12b has external dimensions of (Height x Width x Depth) 16-1/8 x 15-9/16 x 17-3/8inch (410.0 x 396.0 x 442.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of KEF KUBE 12b is approximately 1750.3cm2 / 271.3inch2.
To get a better perspective on the real life size of KEF KUBE 12b, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
KEF KUBE 12b Speaker Size Compared to a Compact Disc
Here we place the KEF KUBE 12b virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.
KEF KUBE 12b Subwoofer next to a Media Stand
WeightThe KEF KUBE 12b weighs 20.68kg / 45.5lbs. Weight of a subwoofer is an important factor when you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. Here is a comparison of how KUBE 12b's weight compares with the average, max and min weights in its class.
Weight
All Subwoofer Speakers
Weight
Subwoofer Speakers under $1000
Cabinet type and Materials
KEF KUBE 12b has a
Acoustic Suspension type cabinet. Acoustic suspension aka Sealed subwoofers are preferred for music oriented systems whereas the Ported subwoofers are generally accepted to be more suitable for home theatre systems.
Port Position
KEF KUBE 12b is a front-firing port speaker , which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.
What's in the Box of KEF KUBE 12b?
Here are the items that are included inside the box of KUBE 12b:
Powered subwoofer6.5-feet AC power cordSpeaker-level input blockUser ManualImportant Safety InformationWarranty Information
Recommended Accessories
Here is a list of accessories that we think you may need for the KEF KUBE 12b.
Warranty
2 Years of parts warranty and 2 Years of labor warranty is generally provided by the manufacturer.