In this review, we will be comparing Defiance X12 and Defiance X15, two Powered Subwoofer speakers by Paradigm. 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 Defiance X12 and Paradigm Defiance X15 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 Defiance X12and Paradigm Defiance X15 have a single woofer setup however the Paradigm Defiance X12's woofer is 12-inch whereas the Paradigm Defiance X15 features a 15-inch woofer.
Frequency Response
Defiance X12 has a frequency range of 20-230 Hz whereas Defiance X15 has a frequency range of 18-230 Hz. With a minimum frequency of 18Hz, the Defiance X15 can go slightly deeper then the Defiance X12'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
Both Paradigm Defiance X12 and Paradigm Defiance X15 have Bass Reflex type cabinets. Bass Reflex type subwoofers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the 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 Paradigm Defiance X12's and Paradigm Defiance X15's external dimensions. Paradigm Defiance X12 has external dimensions of 494.0 x 459.0 x 529.0mm (19-7/16inch x 18-1/16inch x 20-13/16inch) whereas Paradigm Defiance X15 has external dimensions of 626.0 x 589.0 x 661.0mm (24-5/8inch x 23-3/16inch x 26inch).
Paradigm Defiance X15 is clearly the larger of the two speakers. Its body is 130mm wider, 132mm taller and 132mm deeper than Paradigm Defiance X12.
Below you can see the front view size comparison of Paradigm Defiance X12 and Paradigm Defiance X15 in scale.
Comparison image of Paradigm Defiance X12 and Paradigm Defiance X15 Size and External Dimensions
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 Defiance X12 is approximately 2428.1cm2 / 376.4inch2 and base area of the Paradigm Defiance X15 is approximately 3893.3cm2 / 603.5inch2. The Defiance X12 requires 38% less surface area than the Defiance X15 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 Defiance X12 weighs 28.18kg / 62lbs and the Paradigm Defiance X15 weighs 41.82kg / 92lbs. This makes the Defiance X15 48% heavier than the Defiance X12.
Here is a comparison of how Defiance X12 and Defiance X15'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 Defiance X12?
Here are the items that are included inside the box of Defiance X12:
- Powered subwoofer
- Grille
- 6-feetAC power cord
- ARC microphone
- 12
What's in the Box of Paradigm Defiance X15?
Here are the items that come with the Defiance X15:
- Powered subwoofer
- Grille
- 6-feetAC power cord
- ARC microphone
- 12
 Height |
494mm
vs
626mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
2428cm2
vs
3893cm2
|
Takes less floor space |
 Price per pair* |
1499USD
vs
1999USD
|
costs less (*prices may change depending on the seller, location and time) |
 Woofer Size |
15 inches
vs
12 inches
|
Larger woofer |
| Low Frequency Response |
18 Hz
vs
20 Hz
|
Generates deeper bass |
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.
Paradigm Defiance X15 needs about 60% more floor area. Paradigm Defiance X15 stands 132mm further into the room. Paradigm Defiance X15 is 132mm taller.
| General |
Paradigm Defiance X12 |
Paradigm Defiance X15 |
| Brand |
Paradigm |
Paradigm |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
650 watts |
90 watts |
| Frequency Response |
20-230 Hz |
18-230 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
650-watt RMS |
90-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
15" |
| Woofer Composition |
Carbon-loaded polypropylene |
Carbon-loaded polypropylene |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
494.0mm (19.4") |
626.0mm (24.6") |
| Width |
459.0mm (18.1") |
589.0mm (23.2") |
| Depth |
529.0mm (20.8") |
661.0mm (26") |
| Weight |
28.18kg (62lbs) |
41.82kg (92lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
3 Years |
| Labor Warranty |
3 Years |
3 Years |
Siblings in Paradigm's Defiance range - same design thinking, different size. It comes down to your room and your budget.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (20Hz vs 18Hz). |
| Amplifier power | A | Paradigm Defiance X12 has the bigger amplifier - 650W against 90W RMS, about 8.6dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | B | Paradigm Defiance X15 moves more air: 15" against 12" 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 | evenly matched | Both are ported designs, so they roll off in much the same way. |
| Setup and tuning | evenly matched | The same tuning tools on both (app control). |
| Cabinet size | depends | Paradigm Defiance X12 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. |
| Price | A | Paradigm Defiance X12 costs less - $1,499 against $1,999, about 25% less. |
A Paradigm Defiance X12 B Paradigm Defiance X15
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. If placement is the constraint - a corner, behind a sofa, under a desk - Paradigm Defiance X12 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.