In this review, we will be comparing ForceField 40 and Radius 390, two Powered Subwoofer speakers from GoldenEar and Monitor Audio. 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 GoldenEar ForceField 40 and Monitor Audio Radius 390 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.GoldenEar ForceField 40and Monitor Audio Radius 390 have the same driver set up: Both subwoofers have 1 x 10" drivers.
Frequency Response
ForceField 40 has a frequency range of 14-250 Hz whereas Radius 390 has a frequency range of 30-120 Hz. With a minimum frequency of 14Hz, the ForceField 40 can go significantly deeper on the low side and provide stronger bass compared to the Radius 390's min frequency of 30Hz.
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 GoldenEar ForceField 40 and Monitor Audio Radius 390 have Passive Radiator type cabinets. 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 GoldenEar ForceField 40's and Monitor Audio Radius 390's external dimensions. GoldenEar ForceField 40 has external dimensions of 378.0 x 339.0 x 485.0mm (14-7/8inch x 13-5/16inch x 19-1/16inch) whereas Monitor Audio Radius 390 has external dimensions of 348.0 x 331.0 x 385.0mm (13-11/16 x 13 x 15-1/8inch).
GoldenEar ForceField 40 is clearly the larger of the two speakers. Its body is 8mm wider, 30mm taller and 100mm deeper than Monitor Audio Radius 390.
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 GoldenEar ForceField 40 is approximately 1644.2cm2 / 254.9inch2 and base area of the Monitor Audio Radius 390 is approximately 1274.4cm2 / 197.5inch2. The ForceField 40 requires 29% more surface area than the Radius 390 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 GoldenEar ForceField 40 weighs 18.41kg / 40.5lbs and the Monitor Audio Radius 390 weighs 13.77kg / 30.3lbs. This makes the ForceField 40 34% heavier than the Radius 390.
Here is a comparison of how ForceField 40 and Radius 390's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of GoldenEar ForceField 40?
Here are the items that are included inside the box of ForceField 40:
- Powered subwoofer
- 10-feet AC power cord
- Quick Start Guide
- Owners Manual
What's in the Box of Monitor Audio Radius 390?
Here are the items that come with the Radius 390:
- Powered sub
- 6-feet AC power cord
- 10.75-feet Mono minijack cable
- Owners Manual
- Important Safety Instructions
 Low Frequency Response |
14 Hz
vs
30 Hz
|
Generates deeper bass |
 High Frequency Response |
250 Hz
vs
120 Hz
|
Generates higher frequency |
 Height |
348mm
vs
378mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1274cm2
vs
1644cm2
|
Takes less floor space |
 Price per pair* |
1150USD
vs
1199USD
|
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.
GoldenEar ForceField 40 needs about 29% more floor area. GoldenEar ForceField 40 stands 100mm further into the room. GoldenEar ForceField 40 is 30mm taller.
| General |
GoldenEar ForceField 40 |
Monitor Audio Radius 390 |
| Brand |
GoldenEar |
Monitor Audio |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
1000 watts |
220 watts |
| Frequency Response |
14-250 Hz |
30-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
1000-watt RMS |
220-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
10" |
| Woofer Composition |
Polypropylene |
C-CAM |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front and bottom |
side |
Physical Specs |
|
|
| Height |
378.0mm (14.9") |
348.0mm (13.7") |
| Width |
339.0mm (13.3") |
331.0mm (13") |
| Depth |
485.0mm (19.1") |
385.0mm (15.2") |
| Weight |
18.41kg (40.5lbs) |
13.77kg (30.3lbs) |
| Enclosure |
Passive Radiator |
Passive Radiator |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
2 Years |
| Labor Warranty |
3 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 | A | GoldenEar ForceField 40 goes deeper - 14Hz against 30Hz. Under 20Hz is felt more than heard - the bottom of a pipe organ and the bottom of a film mix. |
| Amplifier power | A | GoldenEar ForceField 40 has the bigger amplifier - 1000W against 220W RMS, about 6.6dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | evenly matched | Near-identical radiating area (10" against 10"). |
| Enclosure | evenly matched | Both are passive radiator designs, so they roll off in much the same way. |
| Phase control | B | Monitor Audio Radius 390 has a phase control. Without one, the only way to fix a cancellation at the crossover is to move the box. |
| Driver placement | depends | GoldenEar ForceField 40 fires front/down and Monitor Audio Radius 390 fires side. 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 | Monitor Audio Radius 390 is about 29% 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 | GoldenEar ForceField 40 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 | evenly matched | Priced within a few per cent of each other. |
A GoldenEar ForceField 40 B Monitor Audio Radius 390
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?
GoldenEar ForceField 40 has the edge on paper, though not by much. The "depends" rows are more likely to decide this than the score is. If placement is the constraint - a corner, behind a sofa, under a desk - Monitor Audio Radius 390 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.