In this review, we will be comparing Black TreVoce 12 PRO and Nero DueVoce DualX8, two Powered Subwoofer speakers by 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 OSD Black TreVoce 12 PRO 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 OSD Black TreVoce 12 PROand OSD Nero DueVoce DualX8 have a single woofer setup however the OSD Black TreVoce 12 PRO's woofer is 12-inch whereas the OSD Nero DueVoce DualX8 features a 8-inch woofer.
Frequency Response
Black TreVoce 12 PRO has a frequency range of 18-250 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 slightly deeper then the Black TreVoce 12 PRO's min frequency of 18Hz.
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 OSD Black TreVoce 12 PRO's and OSD Nero DueVoce DualX8's external dimensions. OSD Black TreVoce 12 PRO has external dimensions of 450.9 x 404.8 x 473.1mm () whereas OSD Nero DueVoce DualX8 has external dimensions of 311.2 x 265.1 x 333.4mm ().
OSD Black TreVoce 12 PRO is clearly the larger of the two speakers. Its body is 139.7mm wider, 139.7mm taller and 139.7mm 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.
OSD Black TreVoce 12 PRO needs about 117% more floor or shelf area. OSD Black TreVoce 12 PRO is 140mm deeper, so it stands that much further out from the wall. OSD Black TreVoce 12 PRO is 140mm 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 OSD Black TreVoce 12 PRO is approximately 1915.1cm2 / 296.8inch2 and base area of the OSD Nero DueVoce DualX8 is approximately 883.8cm2 / 137.0inch2. The Black TreVoce 12 PRO requires 117% 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 OSD Black TreVoce 12 PRO weighs 21.09kg / 46.4lbs and the OSD Nero DueVoce DualX8 weighs 7.80kg / 17.2lbs. This makes the Black TreVoce 12 PRO 170% heavier than the Nero DueVoce DualX8.
Here is a comparison of how Black TreVoce 12 PRO 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 |
 High Frequency Response |
250 Hz
vs
165 Hz
|
Generates higher frequency |
| Low Frequency Response |
17 Hz
vs
18 Hz
|
Generates deeper bass |
 Height |
311mm
vs
450mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
883cm2
vs
1915cm2
|
Takes less floor space |
 Price per pair* |
300USD
vs
800USD
|
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.
OSD Black TreVoce 12 PRO needs about 117% more floor area. OSD Black TreVoce 12 PRO stands 140mm further into the room. OSD Black TreVoce 12 PRO is 140mm taller.
| General |
OSD Black TreVoce 12 PRO |
OSD Nero DueVoce DualX8 |
| Brand |
OSD |
OSD |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
18-250 Hz |
17-165 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
130-watt RMS |
| Watts Peak (Max) |
800-watt RMS |
300-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
8" |
| Woofer Composition |
|
|
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
Physical Specs |
|
|
| Height |
450.9mm (17.8") |
311.2mm (12.3") |
| Width |
404.8mm (15.9") |
265.1mm (10.4") |
| Depth |
473.1mm (18.6") |
333.4mm (13.1") |
| Weight |
21.09kg (46.4lbs) |
7.80kg (17.2lbs) |
| Enclosure |
|
|
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |
Two quite different sizes of subwoofer. Room volume decides this more than anything else on the page: a big driver in a small room is wasted, and a small one in a large room is worked to death.
| Area | Better | Why |
|---|
| Bass depth | evenly matched | Effectively the same reach (18Hz vs 17Hz). |
| Amplifier power | A | OSD Black TreVoce 12 PRO 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 | OSD Black TreVoce 12 PRO 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 | evenly matched | Both are passive radiator designs, so they roll off in much the same way. |
| Cabinet size | depends | OSD Nero DueVoce DualX8 is about 68% 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 $800, about 63% less. |
A OSD Black TreVoce 12 PRO 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?
The usual trade-off: OSD Black TreVoce 12 PRO measures better, OSD Nero DueVoce DualX8 costs about 63% 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 $300 each, two OSD Nero DueVoce DualX8 cost about $600 against $800 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.