In this review, we will be comparing Kube 10 MIE and ForceField 3, two Powered Subwoofer speakers from KEF and GoldenEar. 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 KEF Kube 10 MIE and GoldenEar ForceField 3 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 KEF Kube 10 MIEand GoldenEar ForceField 3 have a single woofer setup however the KEF Kube 10 MIE's woofer is 10-inch whereas the GoldenEar ForceField 3 features a 8-inch woofer.
Frequency Response
Kube 10 MIE has a frequency range of 20-140 Hz whereas ForceField 3 has a frequency range of 18-250 Hz. With a minimum frequency of 18Hz, the ForceField 3 can go slightly deeper then the Kube 10 MIE's min frequency of 20Hz.
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
The KEF Kube 10 MIE has a Acoustic Suspension type cabinet. 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. On the other hand the GoldenEar ForceField 3 have Passive Radiator type enclosure. Passive Radiator type subwoofers sports a non-powered cone that moves in response to the main woofer to move air out in order to generate stronger bass in a smaller body compared to ported or sealed 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 KEF Kube 10 MIE's and GoldenEar ForceField 3's external dimensions. KEF Kube 10 MIE has external dimensions of 370 x 353 x 370 mm (14.6 x 13.9 x 14.6 in) whereas GoldenEar ForceField 3 has external dimensions of 288.0 x 293.0 x 432.0mm (11-5/16inch x 11-1/2inch x 17inch).
GoldenEar ForceField 3 is 60mm narrower and 82mm shorter than KEF Kube 10 MIE but it is also 62mm deeper.
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.
Near-identical footprints. GoldenEar ForceField 3 is 62mm deeper, so it stands that much further out from the wall. KEF Kube 10 MIE is 82mm 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 KEF Kube 10 MIE is approximately 1306.1cm2 / 202.4inch2 and base area of the GoldenEar ForceField 3 is approximately 1265.8cm2 / 196.2inch2. The Kube 10 MIE requires 3% more surface area than the ForceField 3 which gives it a small disadvantage 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 KEF Kube 10 MIE weighs 15.40kg / 33.9lbs and the GoldenEar ForceField 3 weighs 11.82kg / 26lbs. This makes the Kube 10 MIE 30% heavier than the ForceField 3.
Here is a comparison of how Kube 10 MIE and ForceField 3's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of KEF Kube 10 MIE?
Here are the items that are included inside the box of Kube 10 MIE:
- Kube 10 MIE subwoofer
- Power cord
- Euroblock speaker level connector
- User manual and warranty information
What's in the Box of GoldenEar ForceField 3?
Here are the items that come with the ForceField 3:
- Powered Subwoofer
- 10-feet AC power cord
- Owners Manual
 Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
| Low Frequency Response |
18 Hz
vs
20 Hz
|
Generates deeper bass |
 High Frequency Response |
250 Hz
vs
140 Hz
|
Generates higher frequency |
 Height |
288mm
vs
370mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1265cm2
vs
1306cm2
|
Takes less floor space |
 Price per pair* |
599USD
vs
799USD
|
costs less (*prices may change depending on the seller, location and time) |
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.
Near-identical footprints. GoldenEar ForceField 3 stands 62mm further into the room. KEF Kube 10 MIE is 82mm taller.
| General |
KEF Kube 10 MIE |
GoldenEar ForceField 3 |
| Brand |
KEF |
GoldenEar |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
300 watts |
1000 watts |
| Frequency Response |
20-140 Hz |
18-250 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
1000-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
8" |
| Woofer Composition |
Polypropylene |
Polypropylene |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
40-140 Hz |
n/a |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
370.0mm (14.6") |
288.0mm (11.3") |
| Width |
353.0mm (13.9") |
293.0mm (11.5") |
| Depth |
370.0mm (14.6") |
432.0mm (17") |
| Weight |
15.40kg (33.9lbs) |
11.82kg (26lbs) |
| Enclosure |
Acoustic Suspension |
Passive Radiator |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
3 Years |
| Labor Warranty |
2 Years |
3 Years |
A sealed subwoofer against a passive radiator one. That is the most consequential line on this page: it decides how the bass rolls off, how it behaves in a small room, and how much output you get for the size of the box.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (20Hz vs 18Hz). |
| Amplifier power | B | GoldenEar ForceField 3 has the bigger amplifier - 1000W against 300W RMS, about 5.2dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | KEF Kube 10 MIE moves more air: 10" against 8" is 1.56x the cone area, not the 1.25x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | depends | KEF Kube 10 MIE is sealed - a sealed box rolls off gently and is usually the easier one to integrate in a small or awkward room; GoldenEar ForceField 3 is passive radiator - a passive radiator behaves like a port without the pipe noise, and suits a slim cabinet. Neither is better in the abstract; ported tends to suit films and sealed tends to suit music, and both generalisations have exceptions. |
| Wireless option | depends | Only KEF Kube 10 MIE 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. |
| Phase control | A | KEF Kube 10 MIE has a phase control. Without one, the only way to fix a cancellation at the crossover is to move the box. |
| Cabinet size | depends | GoldenEar ForceField 3 is about 25% 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 | B | GoldenEar ForceField 3 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 | GoldenEar ForceField 3 costs less - $599 against $799, about 25% less. |
A KEF Kube 10 MIE B GoldenEar ForceField 3
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?
Neither runs away with it - they trade advantages. Let your room size and where the box can actually stand settle it. Films or music? If this is mainly a home cinema, GoldenEar ForceField 3 will hit harder for the money; if it is mainly for music in a normal-sized room, KEF Kube 10 MIE is usually the easier one to make sound right.
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.