In this review, we will be comparing BASIK SUB and Monitor XT12, two Powered Subwoofer speakers from DALI 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 DALI BASIK SUB and Polk Monitor XT12 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 DALI BASIK SUBand Polk Monitor XT12 have a single woofer setup however the DALI BASIK SUB's woofer is 8-inch whereas the Polk Monitor XT12 features a 12-inch woofer.
Frequency Response
BASIK SUB has a frequency range of 33-200 Hz whereas Monitor XT12 has a frequency range of 24-160 Hz. With a minimum frequency of 24Hz, the Monitor XT12 can go significantly deeper on the low side and provide stronger bass compared to the BASIK SUB's min frequency of 33Hz.
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 DALI BASIK SUB and Polk Monitor XT12 have Bass Reflex type cabinets. 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
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 DALI BASIK SUB's and Polk Monitor XT12's external dimensions. DALI BASIK SUB has external dimensions of 319.0 x 295.0 x 310.0mm () whereas Polk Monitor XT12 has external dimensions of 418.0 x 408.0 x 485.0mm (16-7/16inch x 16-1/16inch x 19-1/16inch).
Polk Monitor XT12 is clearly the larger of the two speakers. Its body is 113mm wider, 99mm taller and 175mm deeper than DALI BASIK SUB.
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 DALI BASIK SUB is approximately 914.5cm2 / 141.7inch2 and base area of the Polk Monitor XT12 is approximately 1978.8cm2 / 306.7inch2. The BASIK SUB requires 54% less surface area than the Monitor XT12 which gives it a small advantage 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 DALI BASIK SUB weighs 9.75kg / 21.5lbs and the Polk Monitor XT12 weighs 17.73kg / 39lbs. This makes the Monitor XT12 82% heavier than the BASIK SUB.
Here is a comparison of how BASIK SUB and Monitor XT12's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
 High Frequency Response |
200 Hz
vs
160 Hz
|
Generates higher frequency |
 Height |
319mm
vs
418mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
914cm2
vs
1978cm2
|
Takes less floor space |
 Driver Setup |
1-way
vs
-way
|
Have a dedicated mid-range driver |
 Woofer Size |
12 inches
vs
8 inches
|
Larger woofer |
| Low Frequency Response |
24 Hz
vs
33 Hz
|
Generates deeper bass |
 Price per pair* |
399USD
vs
800USD
|
costs less (*prices may change depending on the seller, location and time) |
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.
Polk Monitor XT12 needs about 116% more floor area. Polk Monitor XT12 stands 175mm further into the room. Polk Monitor XT12 is 99mm taller.
| General |
DALI BASIK SUB |
Polk Monitor XT12 |
| Brand |
DALI |
Polk Audio |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
170 watts |
50 watts |
| Frequency Response |
33-200 Hz |
24-160 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
170-watt RMS |
50-watt RMS |
| Watts Peak (Max) |
220-watt RMS |
n/a |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
8" |
12" |
| Woofer Composition |
Paper, long stroke |
Bi-laminate paper |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
319.0mm (12.6") |
418.0mm (16.5") |
| Width |
295.0mm (11.6") |
408.0mm (16.1") |
| Depth |
310.0mm (12.2") |
485.0mm (19.1") |
| Weight |
9.75kg (21.5lbs) |
17.73kg (39lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
|
3 Years |
| Labor Warranty |
|
3 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 | Polk Monitor XT12 goes deeper - 24Hz against 33Hz. That gap covers the lowest notes of a five-string bass and a concert bass drum. |
| Amplifier power | A | DALI BASIK SUB has the bigger amplifier - 170W against 50W RMS, about 5.3dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | B | Polk Monitor XT12 moves more air: 12" against 8" is 2.25x the cone area, not the 1.5x the diameters suggest. More area means the same output with less excursion, and less distortion with it. |
| Enclosure | evenly matched | Both are ported designs, so they roll off in much the same way. |
| Driver placement | depends | DALI BASIK SUB fires down and Polk Monitor XT12 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. |
| Cabinet size | depends | DALI BASIK SUB is about 65% 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 | B | Polk Monitor XT12 costs less - $399 against $800, about 50% less. |
A DALI BASIK SUB B Polk Monitor XT12
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?
Polk Monitor XT12 has the edge on paper, though not by much. The "depends" rows are more likely to decide this than the score is. Two small subwoofers beat one big one in most rooms - a pair evens out the room modes in a way no single box can, whatever its specs. At $399 each, two Polk Monitor XT12 cost about $798 against $800 for one of the other, which is worth a thought. If placement is the constraint - a corner, behind a sofa, under a desk - DALI BASIK SUB 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.