In this review, we will be comparing Varro DS1000-BG and DB4S, two Powered Subwoofer speakers from ELAC and Bowers Wilkins. 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 DS1000-BG and B&W DB4S 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.ELAC Varro DS1000-BG and B&W DB4S have a totally different setup: the ELAC Varro DS1000-BG features 2 x 10-inch drivers whereas the DB4S features 1 x 10-inch drivers.
Frequency Response
Varro DS1000-BG has a frequency range of 18-150 Hz whereas DB4S has a frequency range of 10-350 Hz. With a minimum frequency of 10Hz, the DB4S can go significantly deeper on the low side and provide stronger bass compared to the Varro DS1000-BG's min frequency of 18Hz.
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
Both ELAC Varro DS1000-BG and B&W DB4S have Acoustic Suspension type cabinets. 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.
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 ELAC Varro DS1000-BG's and B&W DB4S's external dimensions. ELAC Varro DS1000-BG has external dimensions of 372.0 x 431.0 x 372.0mm (14-5/8inch x 16-15/16inch x 14-5/8inch) whereas B&W DB4S has external dimensions of 375.0 x 362.0 x 434.0mm (14-3/4 x 14-1/4 x 17-1/16inch).
ELAC Varro DS1000-BG is 3mm shorter and 62mm less deeper than B&W DB4S but it is also 69mm wider.
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 DS1000-BG is approximately 1603.3cm2 / 248.5inch2 and base area of the B&W DB4S is approximately 1571.1cm2 / 243.5inch2. The Varro DS1000-BG requires 2% more surface area than the DB4S 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 DS1000-BG weighs 32.45kg / 71.4lbs and the B&W DB4S weighs 26.05kg / 57.3lbs. This makes the Varro DS1000-BG 25% heavier than the DB4S.
Here is a comparison of how Varro DS1000-BG and DB4S'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 DS1000-BG?
Here are the items that are included inside the box of Varro DS1000-BG:
- 2 Grilles
- Power Cord
- 4 Spikes
What's in the Box of B&W DB4S?
Here are the items that come with the DB4S:
- Powered subwoofer
- Grille
- 6.5-feet AC power cord
- 4 Decoupling feet
- 4 Rubber feet
- 4 Spike feet
- 4 Lock-nuts
- Cleaning cloth
- Quickstart Guide
- Bowers & Wilkins brochure
- Warranty Information
- Cleaning cloth instructions
 Number of Woofers |
2
vs
1
|
More woofers |
 Height |
372mm
vs
375mm
|
Easier to fit in smaller spaces |
 Ethernet Connection |
Yes
vs
No
|
High quality streaming over Ethernet |
 Wireless Operation |
Optional
vs
No
|
Connect your subwoofer to your system wireless |
| Low Frequency Response |
10 Hz
vs
18 Hz
|
Generates deeper bass |
 High Frequency Response |
350 Hz
vs
150 Hz
|
Generates higher frequency |
 Base Surface Area |
1571cm2
vs
1603cm2
|
Takes less floor space |
 Price per pair* |
2199USD
vs
2499USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
ELAC Varro DS1000-BG |
Bowers & Wilkins DB4S |
| Brand |
ELAC |
Bowers Wilkins |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
1000 watts |
1000 watts |
| Frequency Response |
18-150 Hz |
10-350 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
1000-watt RMS |
n/a |
| Watts Peak (Max) |
2000-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
2 |
1 |
| Woofer Size |
10" |
10" |
| Woofer Composition |
Aluminum |
Aerofoil |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
372.0mm (14.6") |
375.0mm (14.8") |
| Width |
431.0mm (17") |
362.0mm (14.3") |
| Depth |
372.0mm (14.6") |
434.0mm (17.1") |
| Weight |
32.45kg (71.4lbs) |
26.05kg (57.3lbs) |
| Enclosure |
Acoustic Suspension |
Acoustic Suspension |
| Finish |
MDF |
n/a |
| Available Colors |
Gloss Black |
n/a |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| USB Port |
USB-A port for firmware updates |
n/a |
| Ethernet Port |
Yes |
n/a |
Other |
|
|
| Parts Warranty |
1 year |
2 Years |
| Labor Warranty |
1 year |
2 Years |
Two quite different sizes of subwoofer. Room volume decides this more than anything else on the page: a big driver in a small room is wasted, and a small one in a large room is worked to death.
| Area | Better | Why |
|---|
| Bass depth | B | B&W DB4S goes deeper - 10Hz against 18Hz. Under 20Hz is felt more than heard - the bottom of a pipe organ and the bottom of a film mix. |
| Amplifier power | evenly matched | Much the same amplifier (1000W vs 1000W RMS) - under 1dB apart. |
| Driver area | A | ELAC Varro DS1000-BG moves more air: 2 x 10" against 10" is 2x the cone area, not the 1.41x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | evenly matched | Both are sealed designs, so they roll off in much the same way. |
| Setup and tuning | evenly matched | The same tuning tools on both (app control). |
| Speaker-level inputs | A | ELAC Varro DS1000-BG takes a speaker-level connection as well as line level. That is what lets it work with an integrated amplifier or a vintage receiver that has no subwoofer output at all. |
| Wireless option | depends | Only ELAC Varro DS1000-BG offers a wireless link (as a paid option). It decides where the sub can go if you cannot run a cable, and is worth nothing if you can. |
| Driver placement | depends | ELAC Varro DS1000-BG fires side and B&W DB4S fires front. A down-firing driver is more forgiving of a grille-less look and of a hard floor; a front-firing one is the safer choice on a thick carpet or a suspended timber floor. |
| Warranty | B | B&W DB4S carries 2 years on parts against 1 years. A subwoofer amplifier works harder than anything else in the system, so this is not a throwaway line. |
| Price | B | B&W DB4S costs less - $2,199 against $2,499, about 12% less. |
A ELAC Varro DS1000-BG B B&W DB4S
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?
Neither runs away with it - they trade advantages. Let your room size and where the box can actually stand settle it. Check your amplifier first: if it has no subwoofer or preamp output, ELAC Varro DS1000-BG is the only one of these two you can connect at all.
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.