In this review, we will be comparing Nero DueVoce DualX8 and S 810 SUB, two Powered Subwoofer speakers from OSD and Jamo. 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 Nero DueVoce DualX8 and Jamo S 810 SUB 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 Nero DueVoce DualX8and Jamo S 810 SUB have a single woofer setup however the OSD Nero DueVoce DualX8's woofer is 8-inch whereas the Jamo S 810 SUB features a 10-inch woofer.
Frequency Response
Nero DueVoce DualX8 has a frequency range of 17-165 Hz whereas S 810 SUB has a frequency range of 36-180 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 S 810 SUB's min frequency of 36Hz.
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 Nero DueVoce DualX8's and Jamo S 810 SUB's external dimensions. OSD Nero DueVoce DualX8 has external dimensions of 311.2 x 265.1 x 333.4mm () whereas Jamo S 810 SUB has external dimensions of 508.0 x 228.0 x 405.0mm (20 x 8-15/16 x 15-15/16inch).
OSD Nero DueVoce DualX8 is 196.8mm shorter and 71.6mm less deeper than Jamo S 810 SUB but it is also 37.1mm wider.
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.
Near-identical footprints. Jamo S 810 SUB is 72mm deeper, so it stands that much further out from the wall. Jamo S 810 SUB is 197mm 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 Nero DueVoce DualX8 is approximately 883.8cm2 / 137.0inch2 and base area of the Jamo S 810 SUB is approximately 923.4cm2 / 143.1inch2. The Nero DueVoce DualX8 requires 4% less surface area than the S 810 SUB 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 OSD Nero DueVoce DualX8 weighs 7.80kg / 17.2lbs and the Jamo S 810 SUB weighs 11.82kg / 26lbs. This makes the S 810 SUB 52% heavier than the Nero DueVoce DualX8.
Here is a comparison of how Nero DueVoce DualX8 and S 810 SUB's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
17 Hz
vs
36 Hz
|
Generates deeper bass |
 Height |
311mm
vs
508mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
883cm2
vs
923cm2
|
Takes less floor space |
| Woofer Size |
10 inches
vs
8 inches
|
Larger woofer |
 High Frequency Response |
180 Hz
vs
165 Hz
|
Generates higher frequency |
 Price per pair* |
199USD
vs
300USD
|
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.
Near-identical footprints. Jamo S 810 SUB stands 72mm further into the room. Jamo S 810 SUB is 197mm taller.
| General |
OSD Nero DueVoce DualX8 |
Jamo S 810 SUB |
| Brand |
OSD |
Jamo |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
17-165 Hz |
36-180 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
130-watt RMS |
75-watt RMS |
| Watts Peak (Max) |
300-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
10" |
| Woofer Composition |
|
Polyfiber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
Side |
Physical Specs |
|
|
| Height |
311.2mm (12.3") |
508.0mm (20") |
| Width |
265.1mm (10.4") |
228.0mm (9") |
| Depth |
333.4mm (13.1") |
405.0mm (15.9") |
| Weight |
7.80kg (17.2lbs) |
11.82kg (26lbs) |
| Enclosure |
|
Bass Reflex |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |
A passive radiator subwoofer against a ported 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 | A | OSD Nero DueVoce DualX8 goes deeper - 17Hz against 36Hz. Under 20Hz is felt more than heard - the bottom of a pipe organ and the bottom of a film mix. |
| Amplifier power | A | OSD Nero DueVoce DualX8 has the bigger amplifier - 130W against 75W RMS, about 2.4dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | B | Jamo S 810 SUB moves more air: 10" against 8" 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 | OSD Nero DueVoce DualX8 is passive radiator - a passive radiator behaves like a port without the pipe noise, and suits a slim cabinet; Jamo S 810 SUB is ported - a ported box gives more output low down for its size, at the cost of a steeper roll-off below tuning. 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 41% 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 | Jamo S 810 SUB costs less - $199 against $300, about 34% less. |
A OSD Nero DueVoce DualX8 B Jamo S 810 SUB
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?
OSD Nero DueVoce DualX8 is ahead, but on only 1 of the measured areas, and it costs about 51% more. Jamo S 810 SUB 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 - 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.