In this review, we will be comparing QX-12SUB MKII and Nero DueVoce DualX8, two Powered Subwoofer speakers from Mission and OSD. 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 OSD Nero DueVoce DualX8 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 OSD Nero DueVoce DualX8 have a single woofer setup however the Mission QX-12SUB MKII's woofer is 12-inch whereas the OSD Nero DueVoce DualX8 features a 8-inch woofer.
Frequency Response
QX-12SUB MKII has a frequency range of 35-120 Hz whereas Nero DueVoce DualX8 has a frequency range of 17-165 Hz. With a minimum frequency of 17Hz, the Nero DueVoce DualX8 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
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 OSD Nero DueVoce DualX8'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 OSD Nero DueVoce DualX8 has external dimensions of 311.2 x 265.1 x 333.4mm ().
Mission QX-12SUB MKII is clearly the larger of the two speakers. Its body is 134.9mm wider, 166.8mm taller and 131.6mm deeper than OSD Nero DueVoce DualX8.
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 110% more floor or shelf area. Mission QX-12SUB MKII is 132mm deeper, so it stands that much further out from the wall. Mission QX-12SUB MKII is 167mm 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 OSD Nero DueVoce DualX8 is approximately 883.8cm2 / 137.0inch2. The QX-12SUB MKII requires 110% more surface area than the Nero DueVoce DualX8 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 OSD Nero DueVoce DualX8 weighs 7.80kg / 17.2lbs. This makes the QX-12SUB MKII 195% heavier than the Nero DueVoce DualX8.
Here is a comparison of how QX-12SUB MKII and Nero DueVoce DualX8's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Woofer Size |
12 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
17 Hz
vs
35 Hz
|
Generates deeper bass |
 High Frequency Response |
165 Hz
vs
120 Hz
|
Generates higher frequency |
 Height |
311mm
vs
478mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
883cm2
vs
1860cm2
|
Takes less floor space |
 Price per pair* |
300USD
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 110% more floor area. Mission QX-12SUB MKII stands 132mm further into the room. Mission QX-12SUB MKII is 167mm taller.
| General |
Mission QX-12SUB MKII |
OSD Nero DueVoce DualX8 |
| Brand |
Mission |
OSD |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
35-120 Hz |
17-165 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
130-watt RMS |
| Watts Peak (Max) |
450-watt RMS |
300-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
8" |
| Woofer Composition |
Paper |
|
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
30 - 150 Hz |
n/a |
Physical Specs |
|
|
| Height |
478.0mm (18.8") |
311.2mm (12.3") |
| Width |
400.0mm (15.7") |
265.1mm (10.4") |
| Depth |
465.0mm (18.3") |
333.4mm (13.1") |
| Weight |
23.00kg (50.6lbs) |
7.80kg (17.2lbs) |
| Enclosure |
Bass Reflex |
|
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
2 Years |
| Labor Warranty |
|
2 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 | OSD Nero DueVoce DualX8 goes deeper - 17Hz against 35Hz. Under 20Hz is felt more than heard - the bottom of a pipe organ and the bottom of a film mix. |
| Amplifier power | A | Mission QX-12SUB MKII has the bigger amplifier - 300W against 130W RMS, about 3.6dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | Mission QX-12SUB MKII moves more air: 12" against 8" is 2.25x the cone area, not the 1.5x 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; OSD Nero DueVoce DualX8 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. |
| Cabinet size | depends | OSD Nero DueVoce DualX8 is about 69% 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 | OSD Nero DueVoce DualX8 costs less - $300 against $699, about 57% less. |
A Mission QX-12SUB MKII B OSD Nero DueVoce DualX8
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 133% more. OSD Nero DueVoce DualX8 is the sensible buy unless your room is large enough to need the extra. 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 $300 each, two OSD Nero DueVoce DualX8 cost about $600 against $699 for one of the other, which is worth a thought. If placement is the constraint - a corner, behind a sofa, under a desk - OSD Nero DueVoce DualX8 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.