In this review, we will be comparing QX-12SUB MKII and ProSub 1000, two Powered Subwoofer speakers from Mission 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 Mission QX-12SUB MKII and Definitive ProSub 1000 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 Mission QX-12SUB MKIIand Definitive ProSub 1000 have a single woofer setup however the Mission QX-12SUB MKII's woofer is 12-inch whereas the Definitive ProSub 1000 features a 10-inch woofer.
Frequency Response
QX-12SUB MKII has a frequency range of 35-120 Hz whereas ProSub 1000 has a frequency range of 18-150 Hz. With a minimum frequency of 18Hz, the ProSub 1000 can go significantly deeper on the low side and provide stronger bass compared to the QX-12SUB MKII's min frequency of 35Hz.
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 Mission QX-12SUB MKII has a Bass Reflex type cabinet. 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. On the other hand the Definitive ProSub 1000 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 Mission QX-12SUB MKII's and Definitive ProSub 1000's external dimensions. Mission QX-12SUB MKII has external dimensions of 478.0 x 400.0 x 465.0mm (18-13/16 x 15-3/4 x 18-5/16inch) whereas Definitive ProSub 1000 has external dimensions of 366.0 x 307.0 x 486.0mm (14-3/8 x 12-1/16 x 19-1/8inch).
Definitive ProSub 1000 is 93mm narrower and 112mm shorter than Mission QX-12SUB MKII but it is also 21mm 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.
Mission QX-12SUB MKII needs about 25% more floor or shelf area. Definitive ProSub 1000 is 21mm deeper, so it stands that much further out from the wall. Mission QX-12SUB MKII is 112mm 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 Mission QX-12SUB MKII is approximately 1860.0cm2 / 288.3inch2 and base area of the Definitive ProSub 1000 is approximately 1492.0cm2 / 231.3inch2. The QX-12SUB MKII requires 25% more surface area than the ProSub 1000 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 Mission QX-12SUB MKII weighs 23.00kg / 50.6lbs and the Definitive ProSub 1000 weighs 14.09kg / 31lbs. This makes the QX-12SUB MKII 63% heavier than the ProSub 1000.
Here is a comparison of how QX-12SUB MKII and ProSub 1000's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Woofer Size |
12 inches
vs
10 inches
|
Larger woofer |
| Low Frequency Response |
18 Hz
vs
35 Hz
|
Generates deeper bass |
 High Frequency Response |
150 Hz
vs
120 Hz
|
Generates higher frequency |
 Height |
366mm
vs
478mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1492cm2
vs
1860cm2
|
Takes less floor space |
 Price per pair* |
499USD
vs
699USD
|
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.
Mission QX-12SUB MKII needs about 25% more floor area. Definitive ProSub 1000 stands 21mm further into the room. Mission QX-12SUB MKII is 112mm taller.
| General |
Mission QX-12SUB MKII |
Definitive Technology ProSub 1000 |
| Brand |
Mission |
Definitive Technology |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
300 watts |
300 watts |
| Frequency Response |
35-120 Hz |
18-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
300-watt RMS |
| Watts Peak (Max) |
450-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
10" |
| Woofer Composition |
Paper |
Polymer |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
30 - 150 Hz |
40-150 Hz and 80 Hz |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
478.0mm (18.8") |
366.0mm (14.4") |
| Width |
400.0mm (15.7") |
307.0mm (12.1") |
| Depth |
465.0mm (18.3") |
486.0mm (19.1") |
| Weight |
23.00kg (50.6lbs) |
14.09kg (31lbs) |
| Enclosure |
Bass Reflex |
Passive Radiator |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
3 Years |
| Labor Warranty |
|
3 Years |
A ported 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 | B | Definitive ProSub 1000 goes deeper - 18Hz against 35Hz. 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 (300W vs 300W RMS) - under 1dB apart. |
| Driver area | A | Mission QX-12SUB MKII moves more air: 12" against 10" is 1.44x the cone area, not the 1.2x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | depends | Mission QX-12SUB MKII is ported - a ported box gives more output low down for its size, at the cost of a steeper roll-off below tuning; Definitive ProSub 1000 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. |
| Phase control | A | Mission QX-12SUB MKII has a phase control. Without one, the only way to fix a cancellation at the crossover is to move the box. |
| Cabinet size | depends | Definitive ProSub 1000 is about 39% 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 | B | Definitive ProSub 1000 costs less - $499 against $699, about 29% less. |
A Mission QX-12SUB MKII B Definitive ProSub 1000
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?
Mission QX-12SUB MKII is ahead, but on only 1 of the measured areas, and it costs about 40% more. Definitive ProSub 1000 is the sensible buy unless your room is large enough to need the extra. If placement is the constraint - a corner, behind a sofa, under a desk - Definitive ProSub 1000 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.