In this review, we will be comparing MilleniaSub and KUBE 10b, two Powered Subwoofer speakers from Paradigm and KEF. Being Powered subwoofers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them. Let's have a brief look at the main features of Paradigm MilleniaSub and KEF KUBE 10b first before getting into our more detailed comparison.
The sections below take each area in turn: driver and amplifier, frequency response, physical size and connectivity.
Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.Both Paradigm MilleniaSuband KEF KUBE 10b have a single woofer setup however the Paradigm MilleniaSub's woofer is -inch whereas the KEF KUBE 10b features a 10-inch woofer.
Frequency Response
MilleniaSub has a frequency range of 24-150 Hz whereas KUBE 10b has a frequency range of 24-140 Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Subwoofer class in our database.
Low Frequency
Subwoofer Speakers
High Frequency
Subwoofer Speakers
Cabinet Type
Both Paradigm MilleniaSub and KEF KUBE 10b have Acoustic Suspension type cabinets. Acoustic Suspension aka Sealed type subwoofers have enclosures that are sealed hence no ports or holes exists on the cabinet. Sealed designs helps to provide more accurate and tight bass responses compared to ported designs.
Physical Specs
The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Paradigm MilleniaSub's and KEF KUBE 10b's external dimensions. Paradigm MilleniaSub has external dimensions of 386.0 x 180.0 x 467.0mm (15-3/16inch x 7-1/16inch x 18-3/8inch) whereas KEF KUBE 10b has external dimensions of 372.0 x 356.0 x 397.0mm (14-5/8 x 14 x 15-5/8inch).
KEF KUBE 10b is 14mm shorter and 70mm less deeper than Paradigm MilleniaSub but it is also 176mm wider.
Size, drawn to scale
Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.
KEF KUBE 10b needs about 68% more floor or shelf area. Paradigm MilleniaSub is 70mm deeper, so it stands that much further out from the wall. Paradigm MilleniaSub is 14mm taller.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Paradigm MilleniaSub is approximately 840.6cm2 / 130.3inch2 and base area of the KEF KUBE 10b is approximately 1413.3cm2 / 219.1inch2. The MilleniaSub requires 41% less surface area than the KUBE 10b which gives it a small advantage on placement in tight spaces.
Weight Comparison The weight of a subwoofer may become an important factor if you need to move and reposition the unit often to find the optimal positioning, also known as 'Subwoofer Crawling'. The Paradigm MilleniaSub weighs 10.91kg / 24lbs and the KEF KUBE 10b weighs 17.50kg / 38.5lbs. This makes the KUBE 10b 60% heavier than the MilleniaSub.
Here is a comparison of how MilleniaSub and KUBE 10b's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of Paradigm MilleniaSub?
Here are the items that are included inside the box of MilleniaSub:
- Powered subwoofer
- 6-feet AC power cord
- Stand
- 4 Feet
- 4 Locking collars
- 4 Felt-pads
- 2 Screws
- 4 Rubber inserts
- Owners Manual
- Important Operating Info
What's in the Box of KEF KUBE 10b?
Here are the items that come with the KUBE 10b:
- Powered subwoofer
- 6.5-feet AC power cord
- Speaker-level input block
- User Manual
- Important Safety Information
- Warranty Information
 High Frequency Response |
150 Hz
vs
140 Hz
|
Generates higher frequency |
 Base Surface Area |
840cm2
vs
1413cm2
|
Takes less floor space |
 Woofer Size |
10 inches
vs
inches
|
Larger woofer |
 Height |
372mm
vs
386mm
|
Easier to fit in smaller spaces |
 Price per pair* |
750USD
vs
1699USD
|
costs less (*prices may change depending on the seller, location and time) |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
Size, drawn to scale
Both subwoofers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.
One scale for both, standing on the same floor and pushed back to the same wall, so the bigger one visibly takes more of the room.
KEF KUBE 10b needs about 68% more floor area. Paradigm MilleniaSub stands 70mm further into the room. Paradigm MilleniaSub is 14mm taller.
| General |
Paradigm MilleniaSub |
KEF KUBE 10b |
| Brand |
Paradigm |
KEF |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
300 watts |
300 watts |
| Frequency Response |
24-150 Hz |
24-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
300-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
" |
10" |
| Woofer Composition |
Reinforced Polymer |
|
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
40-140 Hz |
| Firing Direction |
front and back |
front |
Physical Specs |
|
|
| Height |
386.0mm (15.2") |
372.0mm (14.6") |
| Width |
180.0mm (7.1") |
356.0mm (14") |
| Depth |
467.0mm (18.4") |
397.0mm (15.6") |
| Weight |
10.91kg (24lbs) |
17.50kg (38.5lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
2 Years |
| Labor Warranty |
3 Years |
2 Years |
Different price classes - Paradigm MilleniaSub costs roughly 2.3x what KEF KUBE 10b does. Before paying it, read the note below about two smaller subwoofers.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (24Hz vs 24Hz). |
| Amplifier power | evenly matched | Much the same amplifier (300W vs 300W RMS) - under 1dB apart. |
| Enclosure | evenly matched | Both are sealed designs, so they roll off in much the same way. |
| Wireless option | depends | Only KEF KUBE 10b offers a wireless link (as a paid option). It decides where the sub can go if you cannot run a cable, and is worth nothing if you can. |
| Driver placement | depends | Paradigm MilleniaSub fires front/rear and KEF KUBE 10b fires front. A down-firing driver is more forgiving of a grille-less look and of a hard floor; a front-firing one is the safer choice on a thick carpet or a suspended timber floor. |
| Cabinet size | depends | Paradigm MilleniaSub is about 38% smaller by volume. In a subwoofer that is a real trade rather than a preference: box volume is how you get output low down without a bigger amplifier. |
| Warranty | A | Paradigm MilleniaSub carries 3 years on parts against 2 years. A subwoofer amplifier works harder than anything else in the system, so this is not a throwaway line. |
| Price | B | KEF KUBE 10b costs less - $750 against $1,699, about 56% less. |
A Paradigm MilleniaSub B KEF KUBE 10b
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both subwoofers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Paradigm MilleniaSub is ahead, but on only 1 of the measured areas, and it costs about 127% more. KEF KUBE 10b is the sensible buy unless your room is large enough to need the extra. Two small subwoofers beat one big one in most rooms - a pair evens out the room modes in a way no single box can, whatever its specs. At $750 each, two KEF KUBE 10b cost about $1,500 against $1,699 for one of the other, which is worth a thought. If placement is the constraint - a corner, behind a sofa, under a desk - Paradigm MilleniaSub is the one that will actually go there, and a well-placed small subwoofer beats a badly-placed big one every time.
One thing outweighs everything above: where the subwoofer stands. Room modes can add or remove 10dB or more at a given seat, which is far larger than any difference on this page. Before spending more, try the sub in two or three positions - the crawl test, where you put it in the listening seat and crawl the room to find where the bass sounds best, costs nothing and usually beats an upgrade.