In this review, we will be comparing MilleniaSub and SW-15, two Powered Subwoofer speakers from Paradigm and Wharfedale. 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 Paradigm MilleniaSub and Wharfedale SW-15 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 Paradigm MilleniaSuband Wharfedale SW-15 have a single woofer setup however the Paradigm MilleniaSub's woofer is -inch whereas the Wharfedale SW-15 features a 15-inch woofer.
Frequency Response
MilleniaSub has a frequency range of 24-150 Hz whereas SW-15 has a frequency range of 30-120 Hz. With a minimum frequency of 24Hz, the MilleniaSub can go significantly deeper on the low side and provide stronger bass compared to the SW-15's min frequency of 30Hz.
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 Paradigm MilleniaSub 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 Wharfedale SW-15 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
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 Paradigm MilleniaSub's and Wharfedale SW-15's external dimensions. Paradigm MilleniaSub has external dimensions of 386.0 x 180.0 x 467.0mm (15-3/16inch x 7-1/16inch x 18-3/8inch) whereas Wharfedale SW-15 has external dimensions of 570.0 x 493.0 x 615.0mm (22-7/16inch x 19-3/8inch x 24-3/16inch).
Wharfedale SW-15 is clearly the larger of the two speakers. Its body is 313mm wider, 184mm taller and 148mm deeper than Paradigm MilleniaSub.
Size, drawn to scale
Both speakers 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 surface and pushed back to the same wall, so the deeper one visibly sticks out further.
Wharfedale SW-15 needs about 261% more floor or shelf area. Wharfedale SW-15 is 148mm deeper, so it stands that much further out from the wall. Wharfedale SW-15 is 184mm taller.
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 Paradigm MilleniaSub is approximately 840.6cm2 / 130.3inch2 and base area of the Wharfedale SW-15 is approximately 3032.0cm2 / 470.0inch2. The MilleniaSub requires 72% less surface area than the SW-15 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 Paradigm MilleniaSub weighs 10.91kg / 24lbs and the Wharfedale SW-15 weighs 31.57kg / 69.5lbs. This makes the SW-15 189% heavier than the MilleniaSub.
Here is a comparison of how MilleniaSub and SW-15's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of Paradigm MilleniaSub?
Here are the items that are included inside the box of MilleniaSub:
- Powered subwoofer
- 6-feet AC power cord
- Stand
- 4 Feet
- 4 Locking collars
- 4 Felt-pads
- 2 Screws
- 4 Rubber inserts
- Owners Manual
- Important Operating Info
What's in the Box of Wharfedale SW-15?
Here are the items that come with the SW-15:
- Powered subwoofer
- Grille
- 6.5-feet AC power cord
- User-feets Manual
 Low Frequency Response |
24 Hz
vs
30 Hz
|
Generates deeper bass |
 High Frequency Response |
150 Hz
vs
120 Hz
|
Generates higher frequency |
 Height |
386mm
vs
570mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
840cm2
vs
3032cm2
|
Takes less floor space |
| Woofer Size |
15 inches
vs
inches
|
Larger woofer |
 Price per pair* |
1199USD
vs
1699USD
|
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.
Wharfedale SW-15 needs about 261% more floor area. Wharfedale SW-15 stands 148mm further into the room. Wharfedale SW-15 is 184mm taller.
| General |
Paradigm MilleniaSub |
Wharfedale SW-15 |
| Brand |
Paradigm |
Wharfedale |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
300 watts |
400 watts |
| Frequency Response |
24-150 Hz |
30-120 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
300-watt RMS |
400-watt RMS |
| Watts Peak (Max) |
n/a |
850-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
" |
15" |
| Woofer Composition |
Reinforced Polymer |
Paper |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front and back |
rear |
Physical Specs |
|
|
| Height |
386.0mm (15.2") |
570.0mm (22.4") |
| Width |
180.0mm (7.1") |
493.0mm (19.4") |
| Depth |
467.0mm (18.4") |
615.0mm (24.2") |
| Weight |
10.91kg (24lbs) |
31.57kg (69.5lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Grille |
n/a |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
3 Years |
3 Years |
| Labor Warranty |
3 Years |
3 Years |
A sealed subwoofer against a ported one. That is the most consequential line on this page: it decides how the bass rolls off, how it behaves in a small room, and how much output you get for the size of the box.
| Area | Better | Why |
|---|
| Bass depth | A | Paradigm MilleniaSub goes deeper - 24Hz against 30Hz. That gap covers the lowest notes of a five-string bass and a concert bass drum. |
| Amplifier power | B | Wharfedale SW-15 has the bigger amplifier - 400W against 300W RMS, about 1.2dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Enclosure | depends | Paradigm MilleniaSub is sealed - a sealed box rolls off gently and is usually the easier one to integrate in a small or awkward room; Wharfedale SW-15 is ported - a ported box gives more output low down for its size, at the cost of a steeper roll-off below tuning. Neither is better in the abstract; ported tends to suit films and sealed tends to suit music, and both generalisations have exceptions. |
| Driver placement | depends | Paradigm MilleniaSub fires front/rear and Wharfedale SW-15 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 | Paradigm MilleniaSub is about 81% 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 | Wharfedale SW-15 costs less - $1,199 against $1,699, about 29% less. |
A Paradigm MilleniaSub B Wharfedale SW-15
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. Films or music? If this is mainly a home cinema, Wharfedale SW-15 will hit harder for the money; if it is mainly for music in a normal-sized room, Paradigm MilleniaSub is usually the easier one to make sound right. If placement is the constraint - a corner, behind a sofa, under a desk - Paradigm MilleniaSub 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.