KUBE 8b is a Sealed type Powered Subwoofer by KEF with a frequency range of 34-140 Hz. It features 1 x 8" Not given Woofer, and powered by a Class D 300 watts amplifier.
KUBE 8b 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.
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KEF KUBE 8b has a Frequency response range of 34-140 Hz at ±3dB.
Here we have a comparison of how KUBE 8b's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Among all subwoofers in our database with a max MSRP price of 750$, these are the 5 Powered Subwoofer models that can reach deeper bass levels than the KEF KUBE 8b's 34Hz:
KEF KUBE 8b 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
KEF KUBE 8b External Dimensions and Weight
KEF KUBE 8b has external dimensions of (Height x Width x Depth) 11-9/16 x 11-5/8 x 13-5/16inch (294.0 x 296.0 x 339.0mm ).
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 8b is approximately 1003.4cm2 / 155.5inch2.
To get a better perspective on the real life size of KEF KUBE 8b, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
Here we place the KEF KUBE 8b virtually next to a standard width amplifier and turntable on a media center to get a better idea about the size.
The KEF KUBE 8b weighs 11.36kg / 25lbs. 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 8b's weight compares with the average, max and min weights in its class.
All Subwoofer Speakers
Subwoofer Speakers under $750
Cabinet type and Materials
KEF KUBE 8b 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.
KEF KUBE 8b 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 8b?
Here are the items that are included inside the box of KUBE 8b:
Powered subwoofer6.5-feet AC power cordSpeaker-level input blockUser ManualImportant Safety InformationWarranty Information
Here is a list of accessories that we think you may need for the KEF KUBE 8b.
2 Years of parts warranty and 2 Years of labor warranty is generally provided by the manufacturer.