In this review, we will be comparing Defiance V8 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 V8 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 V8and Paradigm Defiance X15 have a single woofer setup however the Paradigm Defiance V8's woofer is 8-inch whereas the Paradigm Defiance X15 features a 15-inch woofer.
Frequency Response
Defiance V8 has a frequency range of 34-200 Hz whereas Defiance X15 has a frequency range of 18-230 Hz. With a minimum frequency of 18Hz, the Defiance X15 can go significantly deeper on the low side and provide stronger bass compared to the Defiance V8's min frequency of 34Hz.
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 V8 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 V8's and Paradigm Defiance X15's external dimensions. Paradigm Defiance V8 has external dimensions of 361.0 x 326.0 x 399.0mm (14-3/16inch x 12-13/16inch x 15-11/16inch) 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 263mm wider, 265mm taller and 262mm deeper than Paradigm Defiance V8.
Below you can see the front view size comparison of Paradigm Defiance V8 and Paradigm Defiance X15 in scale.
Comparison image of Paradigm Defiance V8 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 V8 is approximately 1300.7cm2 / 201.6inch2 and base area of the Paradigm Defiance X15 is approximately 3893.3cm2 / 603.5inch2. The Defiance V8 requires 67% 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 V8 weighs 12.05kg / 26.5lbs and the Paradigm Defiance X15 weighs 41.82kg / 92lbs. This makes the Defiance X15 247% heavier than the Defiance V8.
Here is a comparison of how Defiance V8 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 V8?
Here are the items that are included inside the box of Defiance V8:
- Powered subwoofer
- Grille
- 6.5-feetAC power cord
- Owners Manual
- Online Registration Card
- Important Unboxing Information
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 |
361mm
vs
626mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1300cm2
vs
3893cm2
|
Takes less floor space |
 Price per pair* |
480USD
vs
1999USD
|
costs less (*prices may change depending on the seller, location and time) |
 Woofer Size |
15 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
18 Hz
vs
34 Hz
|
Generates deeper bass |
 High Frequency Response |
230 Hz
vs
200 Hz
|
Generates higher frequency |
 App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
 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.
Paradigm Defiance X15 needs about 199% more floor area. Paradigm Defiance X15 stands 262mm further into the room. Paradigm Defiance X15 is 265mm taller.
| General |
Paradigm Defiance V8 |
Paradigm Defiance X15 |
| Brand |
Paradigm |
Paradigm |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
75 watts |
90 watts |
| Frequency Response |
34-200 Hz |
18-230 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
75-watt RMS |
90-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
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 |
361.0mm (14.2") |
626.0mm (24.6") |
| Width |
326.0mm (12.8") |
589.0mm (23.2") |
| Depth |
399.0mm (15.7") |
661.0mm (26") |
| Weight |
12.05kg (26.5lbs) |
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 | B | Paradigm Defiance X15 goes deeper - 18Hz against 34Hz. Under 20Hz is felt more than heard - the bottom of a pipe organ and the bottom of a film mix. |
| Amplifier power | evenly matched | Much the same amplifier (75W vs 90W RMS) - under 1dB apart. |
| Driver area | B | Paradigm Defiance X15 moves more air: 15" against 8" is 3.52x the cone area, not the 1.88x 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. |
| Wireless option | depends | Only Paradigm Defiance X15 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. |
| Cabinet size | depends | Paradigm Defiance V8 is about 81% 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 V8 costs less - $480 against $1,999, about 76% less. |
A Paradigm Defiance V8 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?
The usual trade-off: Paradigm Defiance X15 measures better, Paradigm Defiance V8 costs about 76% less. In a normal room, placement will make a bigger difference than the gap between these two. 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 $480 each, two Paradigm Defiance V8 cost about $960 against $1,999 for one of the other, which is worth a thought. If placement is the constraint - a corner, behind a sofa, under a desk - Paradigm Defiance V8 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.