In this review, we will be comparing SB-1000 Pro and Descend DN15, two Powered Subwoofer speakers from SVS and Definitive Technology. 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 SB-1000 Pro and Definitive DN15 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 SVS SB-1000 Proand Definitive DN15 have a single woofer setup however the SVS SB-1000 Pro's woofer is 12-inch whereas the Definitive DN15 features a 15-inch woofer.
Frequency Response
SB-1000 Pro has a frequency range of 20-270 Hz whereas Descend DN15 has a frequency range of 20-150 Hz.
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 SVS SB-1000 Pro 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 Definitive DN15 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 SVS SB-1000 Pro's and Definitive DN15's external dimensions. SVS SB-1000 Pro has external dimensions of 343.0 x 331.0 x 402.0mm (13-1/2inch x 13inch x 15-13/16inch) whereas Definitive DN15 has external dimensions of 634.0 x 596.0 x 640.0mm (24-15/16inch x 23-7/16inch x 25-3/16inch).
Definitive DN15 is clearly the larger of the two speakers. Its body is 265mm wider, 291mm taller and 238mm deeper than SVS SB-1000 Pro.
Below you can see the front view size comparison of SVS SB-1000 Pro and Definitive DN15 in scale.
Comparison image of SVS SB-1000 Pro and Definitive DN15 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 SVS SB-1000 Pro is approximately 1330.6cm2 / 206.2inch2 and base area of the Definitive DN15 is approximately 3814.4cm2 / 591.2inch2. The SB-1000 Pro requires 65% less surface area than the Descend DN15 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 SB-1000 Pro weighs 11.82kg / 26lbs and the Definitive DN15 weighs 52.09kg / 114.6lbs. This makes the Descend DN15 341% heavier than the SB-1000 Pro.
Here is a comparison of how SB-1000 Pro and Descend DN15'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 SB-1000 Pro?
Here are the items that are included inside the box of SB-1000 Pro:
- Powered subwoofer
- Grille
- 6-feet AC power cord
- Quick Start Guide
- Brochure
- SVS Support Information
What's in the Box of Definitive DN15?
Here are the items that come with the Descend DN15:
- Powered subwoofer
- 6-feet AC power cord
- Remote control
- CR2032 3V battery (pre-installed in remote)
- Owners Manual
 High Frequency Response |
270 Hz
vs
150 Hz
|
Generates higher frequency |
 App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
 Height |
343mm
vs
634mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1330cm2
vs
3814cm2
|
Takes less floor space |
 Price per pair* |
600USD
vs
1799USD
|
costs less (*prices may change depending on the seller, location and time) |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
 Woofer Size |
15 inches
vs
12 inches
|
Larger woofer |
| Passive Radiator |
2 x 15-inch
vs
None
|
Increases the bass performance |
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.
Definitive DN15 needs about 187% more floor area. Definitive DN15 stands 238mm further into the room. Definitive DN15 is 291mm taller.
| General |
SVS SB-1000 Pro |
Definitive Technology Descend DN15 |
| Brand |
SVS |
Definitive Technology |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
325 watts |
500 watts |
| Frequency Response |
20-270 Hz |
20-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
325-watt RMS |
500-watt RMS |
| Watts Peak (Max) |
820-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
15" |
| Woofer Composition |
Fiber-composite |
Polypropylene |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
343.0mm (13.5") |
634.0mm (25") |
| Width |
331.0mm (13") |
596.0mm (23.5") |
| Depth |
402.0mm (15.8") |
640.0mm (25.2") |
| Weight |
11.82kg (26lbs) |
52.09kg (114.6lbs) |
| Enclosure |
Acoustic Suspension |
Passive Radiator |
| Available Colors |
Black,White |
n/a |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
5 Years |
3 Years |
| Labor Warranty |
5 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 20Hz). |
| Amplifier power | B | Definitive DN15 has the bigger amplifier - 500W against 325W RMS, about 1.9dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | B | Definitive DN15 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 | depends | SVS SB-1000 Pro is sealed - a sealed box rolls off gently and is usually the easier one to integrate in a small or awkward room; Definitive DN15 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 SVS SB-1000 Pro 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 | SVS SB-1000 Pro 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. |
| Warranty | A | SVS SB-1000 Pro carries 5 years on parts against 3 years. A subwoofer amplifier works harder than anything else in the system, so this is not a throwaway line. |
| Price | A | SVS SB-1000 Pro costs less - $600 against $1,799, about 67% less. |
A SVS SB-1000 Pro B Definitive DN15
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?
Definitive DN15 is ahead, but on only 1 of the measured areas, and it costs about 3x the price. SVS SB-1000 Pro is the sensible buy unless your room is large enough to need the extra. Films or music? If this is mainly a home cinema, Definitive DN15 will hit harder for the money; if it is mainly for music in a normal-sized room, SVS SB-1000 Pro is usually the easier one to make sound right. 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 $600 each, two SVS SB-1000 Pro cost about $1,200 against $1,799 for one of the other, which is worth a thought.
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.