In this review, we will be comparing Varro RS500-SB and Varro PS250-BK, two Powered Subwoofer speakers by 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 ELAC Varro RS500-SB and ELAC Varro PS250-BK first before getting into our more detailed comparison.
In the following sections, we will get into details in order to better understand how the ELAC Varro RS500-SB and ELAC Varro PS250-BK compare and hopefully end up with enough arguments to decide which one of these subwoofers is the better choice for you.
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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.ELAC Varro RS500-SBand ELAC Varro PS250-BK have the same driver set up: Both subwoofers have 1 x 10" drivers.
Frequency Response
Varro RS500-SB has a frequency range of 18-150 Hz whereas Varro PS250-BK has a frequency range of 27-150 Hz. With a minimum frequency of 18Hz, the Varro RS500-SB can go significantly deeper on the low side and provide stronger bass compared to the Varro PS250-BK's min frequency of 27Hz.
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
Cabinet Type
The ELAC Varro RS500-SB has a Acoustic Suspension type cabinet. Acoustic Suspension aka Sealed type subwoofers have enclosures that are sealed hence no ports or holes exists on the cabinet. Sealed designs helps to provide more accurate and tight bass responses compared to ported designs. On the other hand the ELAC Varro PS250-BK have Bass Reflex type enclosure. Bass Reflex type subwoofers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare ELAC Varro RS500-SB's and ELAC Varro PS250-BK's external dimensions. ELAC Varro RS500-SB has external dimensions of 381.0 x 361.0 x 388.0mm ( 15inch x 14-3/16inch x 15-1/4inch ) whereas ELAC Varro PS250-BK has external dimensions of 381.0 x 361.0 x 361.0mm ( 15inch x 14-3/16inch x 14-3/16inch ) .
ELAC Varro RS500-SB has the same height and width with ELAC Varro PS250-BK. On the other hand, with a thickness of 388.0mm, it is 27mm deeper.
Below you can see the front view size comparison of ELAC Varro RS500-SB and ELAC Varro PS250-BK in scale.
Comparison image of ELAC Varro RS500-SB and ELAC Varro PS250-BK Size and External Dimensions
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 ELAC Varro RS500-SB is approximately 1400.7cm2 / 217.1inch2 and base area of the ELAC Varro PS250-BK is approximately 1303.2cm2 / 202.0inch2. The Varro RS500-SB requires 7% more surface area than the Varro PS250-BK 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 ELAC Varro RS500-SB weighs 20.85kg / 45.9lbs and the ELAC Varro PS250-BK weighs 16.44kg / 36.2lbs. This makes the Varro RS500-SB 27% heavier than the Varro PS250-BK.
Here is a comparison of how Varro RS500-SB and Varro PS250-BK's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of ELAC Varro RS500-SB?
Here are the items that are included inside the box of Varro RS500-SB:
Grill Power Cord 4 Spikes
What's in the Box of ELAC Varro PS250-BK?
Here are the items that come with the Varro PS250-BK:
Grill Power Cord 4 Spikes
 Low Frequency Response |
18 Hz
vs
27 Hz
|
Generates deeper bass |
 Ethernet Connection |
Yes
vs
No
|
High quality streaming over Ethernet |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
 Base Surface Area |
1303cm2
vs
1400cm2
|
Takes less floor space |
 Price per pair* |
649USD
vs
1299USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
ELAC Varro RS500-SB |
ELAC Varro PS250-BK |
| Brand |
ELAC |
ELAC |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
500 watts |
250 watts |
| Frequency Response |
18-150 Hz |
27-150 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
500-watt RMS |
250-watt RMS |
| Watts Peak (Max) |
1000-watt RMS |
500-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
10" |
10" |
| Woofer Composition |
Aluminum |
Treated paper |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
bottom |
bottom |
Physical Specs |
|
|
| Height |
381.0mm (15") |
381.0mm (15") |
| Width |
361.0mm (14.2") |
361.0mm (14.2") |
| Depth |
388.0mm (15.3") |
361.0mm (14.2") |
| Weight |
20.85kg (45.9lbs) |
16.44kg (36.2lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Finish |
MDF |
MDF |
| Available Colors |
Gloss Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| USB Port |
USB-A port for firmware updates |
USB-A port for firmware updates |
| Ethernet Port |
Yes |
n/a |
Other |
|
|
| Parts Warranty |
1 year |
1 year |
| Labor Warranty |
1 year |
1 year |