In this review, we will be comparing Nero DueVoce DualX8 and Varro PS350-BK, two Powered Subwoofer speakers from OSD and ELAC. 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 ELAC Varro PS350-BK 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.Both OSD Nero DueVoce DualX8and ELAC Varro PS350-BK have a single woofer setup however the OSD Nero DueVoce DualX8's woofer is 8-inch whereas the ELAC Varro PS350-BK features a 12-inch woofer.
Frequency Response
Nero DueVoce DualX8 has a frequency range of 17-165 Hz whereas Varro PS350-BK has a frequency range of 24-150 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 Varro PS350-BK's min frequency of 24Hz.
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 ELAC Varro PS350-BK's external dimensions. OSD Nero DueVoce DualX8 has external dimensions of () whereas ELAC Varro PS350-BK has external dimensions of 439.0 x 418.0 x 420.0mm (17-1/4inch x 16-7/16inch x 16-1/2inch).
ELAC Varro PS350-BK is clearly the larger of the two speakers. Its body is 152.9mm wider, 127.8mm taller and 86.6mm 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 ELAC Varro PS350-BK weighs 21.86kg / 48.1lbs. This makes the Varro PS350-BK 180% heavier than the Nero DueVoce DualX8.
Here is a comparison of how Nero DueVoce DualX8 and Varro PS350-BK's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 Low Frequency Response |
17 Hz
vs
24 Hz
|
Generates deeper bass |
 High Frequency Response |
165k Hz
vs
150k Hz
|
Generates higher frequency |
 Height |
311mm
vs
439mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
0cm2
vs
1755cm2
|
Takes less floor space |
 Price per pair* |
300USD
vs
799USD
|
costs less (*prices may change depending on the seller, location and time) |
| Woofer Size |
12 inches
vs
8 inches
|
Larger woofer |
 App-Based Control |
iOS,Android
vs
None
|
Control the speaker via an app |
| General |
OSD Nero DueVoce DualX8 |
ELAC Varro PS350-BK |
| Brand |
OSD |
ELAC |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Frequency Response |
17-165 Hz |
24-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
130-watt RMS |
350-watt RMS |
| Watts Peak (Max) |
300-watt RMS |
700-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
12" |
| Woofer Composition |
|
Treated paper |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
bottom |
Physical Specs |
|
|
| Height |
311.2mm (12.3") |
439.0mm (17.3") |
| Width |
265.1mm (10.4") |
418.0mm (16.5") |
| Depth |
333.4mm (13.1") |
420.0mm (16.5") |
| Weight |
7.80kg (17.2lbs) |
21.86kg (48.1lbs) |
| Enclosure |
|
Bass Reflex |
| Finish |
n/a |
MDF |
| Available Colors |
n/a |
Black |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| USB Port |
n/a |
USB-A port for firmware updates |
Other |
|
|
| Parts Warranty |
2 Years |
1 year |
| Labor Warranty |
2 Years |
1 year |