In this review, we will be comparing 3000 Micro and KUBE 10b, two Powered Subwoofer speakers from SVS 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 SVS 3000 Micro 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.
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Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.SVS 3000 Micro and KEF KUBE 10b have a totally different setup: the SVS 3000 Micro features 2 x 8-inch drivers whereas the KUBE 10b features 1 x 10-inch drivers.
Frequency Response
3000 Micro has a frequency range of 23-240 Hz whereas KUBE 10b has a frequency range of 24-140 Hz. With a minimum frequency of 23Hz, the 3000 Micro can go slightly deeper then the KUBE 10b's min frequency of 24Hz.
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 SVS 3000 Micro 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 SVS 3000 Micro's and KEF KUBE 10b's external dimensions. SVS 3000 Micro has external dimensions of 277.0 x 297.0 x 310.0mm (10-7/8inch x 11-11/16inch x 12-3/16inch) 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 clearly the larger of the two speakers. Its body is 59mm wider, 95mm taller and 87mm deeper than SVS 3000 Micro.
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 SVS 3000 Micro is approximately 920.7cm2 / 142.7inch2 and base area of the KEF KUBE 10b is approximately 1413.3cm2 / 219.1inch2. The 3000 Micro requires 35% 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 SVS 3000 Micro weighs 10.23kg / 22.5lbs and the KEF KUBE 10b weighs 17.50kg / 38.5lbs. This makes the KUBE 10b 71% heavier than the 3000 Micro.
Here is a comparison of how 3000 Micro 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 SVS 3000 Micro?
Here are the items that are included inside the box of 3000 Micro:
- Powered subwoofer
- 6-feet AC power cord
- Quick Start Guide
- SVS Brochure
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
 Number of Woofers |
2
vs
1
|
More woofers |
| Low Frequency Response |
23 Hz
vs
24 Hz
|
Generates deeper bass |
 High Frequency Response |
240 Hz
vs
140 Hz
|
Generates higher frequency |
 App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
 Height |
277mm
vs
372mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
920cm2
vs
1413cm2
|
Takes less floor space |
| Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
 Price per pair* |
750USD
vs
900USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
SVS 3000 Micro |
KEF KUBE 10b |
| Brand |
SVS |
KEF |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
800 watts |
300 watts |
| Frequency Response |
23-240 Hz |
24-140 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
800-watt RMS |
300-watt RMS |
| Watts Peak (Max) |
2500-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
2 |
1 |
| Woofer Size |
8" |
10" |
| Woofer Composition |
Aluminum |
|
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
40-140 Hz |
| Firing Direction |
side |
front |
Physical Specs |
|
|
| Height |
277.0mm (10.9") |
372.0mm (14.6") |
| Width |
297.0mm (11.7") |
356.0mm (14") |
| Depth |
310.0mm (12.2") |
397.0mm (15.6") |
| Weight |
10.23kg (22.5lbs) |
17.50kg (38.5lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Available Colors |
Black |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
2 Years |
| Labor Warranty |
5 Years |
2 Years |
No single best subwoofer here. Your room, where the box can physically go, and whether this is mainly for films or mainly for music will settle it long before the specs do.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (23Hz vs 24Hz). |
| Amplifier power | A | SVS 3000 Micro has the bigger amplifier - 800W against 300W RMS, about 4.3dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | SVS 3000 Micro moves more air: 2 x 8" against 10" is 1.28x the cone area, not the 1.13x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | evenly matched | Both are sealed designs, so they roll off in much the same way. |
| Setup and tuning | evenly matched | The same tuning tools on both (room correction and onboard DSP). |
| Driver placement | depends | SVS 3000 Micro fires side 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 | SVS 3000 Micro is about 51% 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 | SVS 3000 Micro carries 5 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 $900, about 17% less. |
A SVS 3000 Micro 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?
SVS 3000 Micro leads across most of the measured areas for a modest premium, so it is the easier pick if the budget stretches. KEF KUBE 10b is the one to take if it does not. If placement is the constraint - a corner, behind a sofa, under a desk - SVS 3000 Micro 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.