In this review, we will be comparing Nero DueVoce DualX8 and Elite ES8, two Powered Subwoofer speakers from OSD and Polk Audio. 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 Polk Signature Elite ES8 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.
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Drivers
The efficiency of a subwoofer is directly proportional to the total radiating are squared hence the woofer quantity and diameter.OSD Nero DueVoce DualX8and Polk Signature Elite ES8 have the same driver set up: Both subwoofers have 1 x 8" drivers.
Frequency Response
Nero DueVoce DualX8 has a frequency range of 17-165 Hz whereas Elite ES8 has a frequency range of 32-180 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 Elite ES8's min frequency of 32Hz.
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
Polk Signature Elite ES8 Port
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 Polk Signature Elite ES8's external dimensions. OSD Nero DueVoce DualX8 has external dimensions of () whereas Polk Signature Elite ES8 has external dimensions of 385.0 x 326.0 x 437.0mm (15-1/8inch x 12-13/16inch x 17-3/16inch).
Polk Signature Elite ES8 is clearly the larger of the two speakers. Its body is 60.9mm wider, 73.8mm taller and 103.6mm deeper than OSD Nero DueVoce DualX8.
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 Polk Signature Elite ES8 weighs 17.73kg / 39lbs. This makes the Elite ES8 127% heavier than the Nero DueVoce DualX8.
Here is a comparison of how Nero DueVoce DualX8 and Elite ES8's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
17 Hz
vs
32 Hz
|
Generates deeper bass |
 Height |
311mm
vs
385mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
0cm2
vs
1424cm2
|
Takes less floor space |
 Price per pair* |
300USD
vs
449USD
|
costs less (*prices may change depending on the seller, location and time) |
 High Frequency Response |
180k Hz
vs
165k Hz
|
Generates higher frequency |
| General |
OSD Nero DueVoce DualX8 |
Polk Signature Elite ES8 |
| Brand |
OSD |
Polk Audio |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
17-165 Hz |
32-180 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
130-watt RMS |
100-watt RMS |
| Watts Peak (Max) |
300-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
8" |
| Woofer Composition |
|
Mineral-filled polypropylene |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
311.2mm (12.3") |
385.0mm (15.2") |
| Width |
265.1mm (10.4") |
326.0mm (12.8") |
| Depth |
333.4mm (13.1") |
437.0mm (17.2") |
| Weight |
7.80kg (17.2lbs) |
17.73kg (39lbs) |
| Enclosure |
|
Bass Reflex |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
3 Years |
| Labor Warranty |
2 Years |
3 Years |