In this review, we will be comparing R-121SW and Sub 1000 F, two Powered Subwoofer speakers from Klipsch and Focal. 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 Klipsch R-121SW and Focal Sub 1000 F 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.Klipsch R-121SWand Focal Sub 1000 F have the same driver set up: Both subwoofers have 1 x 12" drivers.
Frequency Response
R-121SW has a frequency range of 28-120 Hz whereas Sub 1000 F has a frequency range of 24-200 Hz. With a minimum frequency of 24Hz, the Sub 1000 F can go slightly deeper then the R-121SW's min frequency of 28Hz.
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 Klipsch R-121SW has a Bass Reflex type cabinet. 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. On the other hand the Focal Sub 1000 F have Acoustic Suspension type enclosure. 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.
Klipsch R-121SW Port
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 Klipsch R-121SW's and Focal Sub 1000 F's external dimensions. Klipsch R-121SW has external dimensions of 423.0 x 407.0 x 532.0mm (16-5/8inch x 16inch x 20-15/16inch) whereas Focal Sub 1000 F has external dimensions of 421.0 x 401.0 x 474.0mm (16-9/16 x 15-3/4 x 18-5/8inch).
Klipsch R-121SW is clearly the larger of the two speakers. Its body is 6mm wider, 2mm taller and 58mm deeper than Focal Sub 1000 F.
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 Klipsch R-121SW is approximately 2165.2cm2 / 335.6inch2 and base area of the Focal Sub 1000 F is approximately 1900.7cm2 / 294.6inch2. The R-121SW requires 14% more surface area than the Sub 1000 F 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 Klipsch R-121SW weighs 16.00kg / 35.2lbs and the Focal Sub 1000 F weighs 21.36kg / 47lbs. This makes the Sub 1000 F 34% heavier than the R-121SW.
Here is a comparison of how R-121SW and Sub 1000 F's weights compare with the average, max and min weights in Powered Subwoofer class.
Weight
All Subwoofer Speakers
What's in the Box of Klipsch R-121SW?
Here are the items that are included inside the box of R-121SW:
- Powered subwoofer
- Grille
- 6.5-feet AC power cord
- User Manual
- Important Safety Instructions
- Warranty Information
What's in the Box of Focal Sub 1000 F?
Here are the items that come with the Sub 1000 F:
- Powered subwoofer
- 8-feet AC power cord
- Grille
- User Manual
 Price per pair* |
599USD
vs
2099USD
|
costs less (*prices may change depending on the seller, location and time) |
 Low Frequency Response |
24 Hz
vs
28 Hz
|
Generates deeper bass |
 High Frequency Response |
200 Hz
vs
120 Hz
|
Generates higher frequency |
 Height |
421mm
vs
423mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1900cm2
vs
2165cm2
|
Takes less floor space |
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.
Klipsch R-121SW needs about 14% more floor area. Klipsch R-121SW stands 58mm further into the room.
| General |
Klipsch Reference R-121SW |
Focal Sub 1000 F |
| Brand |
Klipsch |
Focal |
| Speaker Type |
Powered Subwoofer |
Powered Subwoofer |
| Max Amplifier Output |
200 watts |
1000 watts |
| Frequency Response |
28-120 Hz |
24-200 Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
200-watt RMS |
1000-watt RMS |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
12" |
12" |
| Woofer Composition |
Spun-Copper TCP |
Flax |
| Tweeter Size |
- |
- |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
front |
front |
Physical Specs |
|
|
| Height |
423.0mm (16.7") |
421.0mm (16.6") |
| Width |
407.0mm (16") |
401.0mm (15.8") |
| Depth |
532.0mm (20.9") |
474.0mm (18.7") |
| Weight |
16.00kg (35.2lbs) |
21.36kg (47lbs) |
| Enclosure |
Bass Reflex |
Acoustic Suspension |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
Other |
|
|
| Parts Warranty |
2 Years |
3 Years |
| Labor Warranty |
2 Years |
3 Years |
A ported subwoofer against a sealed 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 | B | Focal Sub 1000 F goes deeper - 24Hz against 28Hz. A real difference, though most music has little content below 28Hz. |
| Amplifier power | B | Focal Sub 1000 F has the bigger amplifier - 1000W against 200W RMS, about 7dB more on tap. In a large room that is headroom before the DSP starts limiting. |
| Driver area | evenly matched | Near-identical radiating area (12" against 12"). |
| Enclosure | depends | Klipsch R-121SW is ported - a ported box gives more output low down for its size, at the cost of a steeper roll-off below tuning; Focal Sub 1000 F is sealed - a sealed box rolls off gently and is usually the easier one to integrate in a small or awkward room. Neither is better in the abstract; ported tends to suit films and sealed tends to suit music, and both generalisations have exceptions. |
| Warranty | B | Focal Sub 1000 F carries 3 years on parts against 2 years. A subwoofer amplifier works harder than anything else in the system, so this is not a throwaway line. |
| Price | A | Klipsch R-121SW costs less - $599 against $2,099, about 71% less. |
A Klipsch R-121SW B Focal Sub 1000 F
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?
The usual trade-off: Focal Sub 1000 F measures better, Klipsch R-121SW costs about 71% less. In a normal room, placement will make a bigger difference than the gap between these two. Films or music? If this is mainly a home cinema, Klipsch R-121SW will hit harder for the money; if it is mainly for music in a normal-sized room, Focal Sub 1000 F is usually the easier one to make sound right. 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 $599 each, two Klipsch R-121SW cost about $1,198 against $2,099 for one of the other, which is worth a thought.
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.