In this review, we will be comparing Nero DueVoce DualX8 and SUB6, two Powered Subwoofer speakers from OSD and Kanto. 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 Kanto SUB6 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 Kanto SUB6 have a single woofer setup however the OSD Nero DueVoce DualX8's woofer is 8-inch whereas the Kanto SUB6 features a 6-inch woofer.
Frequency Response
Nero DueVoce DualX8 has a frequency range of 17-165 Hz whereas SUB6 has a frequency range of 35-165 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 SUB6'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 OSD Nero DueVoce DualX8's and Kanto SUB6's external dimensions. OSD Nero DueVoce DualX8 has external dimensions of 311.2 x 265.1 x 333.4mm () whereas Kanto SUB6 has external dimensions of 241.3 x 222.3 x 266.7mm ().
OSD Nero DueVoce DualX8 is clearly the larger of the two speakers. Its body is 42.8mm wider, 69.9mm taller and 66.7mm deeper than Kanto SUB6.
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 Nero DueVoce DualX8 needs about 49% more floor or shelf area. OSD Nero DueVoce DualX8 is 67mm deeper, so it stands that much further out from the wall. OSD Nero DueVoce DualX8 is 70mm 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 Kanto SUB6 is approximately 592.9cm2 / 91.9inch2. The Nero DueVoce DualX8 requires 49% more surface area than the SUB6 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 Nero DueVoce DualX8 weighs 7.80kg / 17.2lbs and the Kanto SUB6 weighs 5.31kg / 11.7lbs. This makes the Nero DueVoce DualX8 47% heavier than the SUB6.
Here is a comparison of how Nero DueVoce DualX8 and SUB6's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Woofer Size |
8 inches
vs
6 inches
|
Larger woofer |
| Low Frequency Response |
17 Hz
vs
35 Hz
|
Generates deeper bass |
 Height |
241mm
vs
311mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
592cm2
vs
883cm2
|
Takes less floor space |
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 Nero DueVoce DualX8 needs about 49% more floor area. OSD Nero DueVoce DualX8 stands 67mm further into the room. OSD Nero DueVoce DualX8 is 70mm taller.
| General |
OSD Nero DueVoce DualX8 |
Kanto SUB6 |
| Brand |
OSD |
Kanto |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
17-165 Hz |
35-165 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
130-watt RMS |
100-watt RMS |
| Watts Peak (Max) |
300-watt RMS |
200-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
6" |
| Woofer Composition |
|
|
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
Physical Specs |
|
|
| Height |
311.2mm (12.3") |
241.3mm (9.5") |
| Width |
265.1mm (10.4") |
222.3mm (8.8") |
| Depth |
333.4mm (13.1") |
266.7mm (10.5") |
| Weight |
7.80kg (17.2lbs) |
5.31kg (11.7lbs) |
| Enclosure |
|
|
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
2 Years |
| Labor Warranty |
2 Years |
2 Years |
A passive radiator subwoofer against a sealed 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 35Hz. 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 100W RMS, about 1.1dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | A | OSD Nero DueVoce DualX8 moves more air: 8" against 6" is 1.78x the cone area, not the 1.33x 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; Kanto SUB6 is sealed - a sealed box rolls off gently and is usually the easier one to integrate in a small or awkward room. 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 | Kanto SUB6 is about 48% 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 | evenly matched | Priced within a few per cent of each other. |
A OSD Nero DueVoce DualX8 B Kanto SUB6
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 has the edge on paper, though not by much. The "depends" rows are more likely to decide this than the score is. Films or music? If this is mainly a home cinema, OSD Nero DueVoce DualX8 will hit harder for the money; if it is mainly for music in a normal-sized room, Kanto SUB6 is usually the easier one to make sound right. If placement is the constraint - a corner, behind a sofa, under a desk - Kanto SUB6 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.