In this review, we will be comparing Motion XT F200 and Aria K2 936K2, two Passive Floor-standing speakers from MartinLogan and Focal.
Let's have a brief look at the main features
of MartinLogan Motion XT F200 and Focal Aria K2 936K2 first before getting into our more
detailed comparison.
| Key Specs | MartinLogan Motion XT F200 | Focal Aria K2 936K2 |
|---|
| Brand | MartinLogan
United States · founded 1982 | Focal
France · founded 1979 |
|---|
| Design | 3-way | 3-way |
|---|
| Tweeter | 1.25 x 2.4" Folded Motion XT | 1" inverted dome |
|---|
| Midrange | 6.5" | 6.5" |
|---|
| Woofer | 3 x 8" Aluminum | 3 x 6.5" K2 aramid fiber/fiberglass |
|---|
| Frequency response | 27-25k Hz | 39-28k Hz |
|---|
| Sensitivity | 92 dB | 92 dB |
|---|
| Impedance | 4 ohms | 8 ohms |
|---|
| Power range | 20-600 watts | 50-300 watts |
|---|
| Weight | 39.00kg / 85.8lbs | 29.09kg / 64lbs |
|---|
| Dimensions (H x W x D) | 50-3/4" x 13-3/4" x 16-1/2"
1289 x 349 x 419mm | 45-3/16" x 11-9/16" x 14-11/16"
1148.0 x 294.0 x 374.0mm |
|---|
What size room are the MartinLogan Motion XT F200 and Focal Aria K2 936K2 speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision
factor. Here we have compared their suitability to various sizes of environments considering their size
and max power parameters:
| Listening Environment* |
MartinLogan Motion XT F200 |
Focal Aria K2 936K2 |
| Near-field |
Are you nuts? |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Average |
Average |
| Large Room |
Good |
Good |
| Very Large Room |
Good |
Average |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2,
Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: >
400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual
listening experience changes depending on floor height, room shape, surface materials, listening
position, speaker locations, etc.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both Motion XT F200 and Aria K2 936K2 are 3-way speakers.
MartinLogan Motion XT F200Focal Aria K2 936K2
TweeterMidrangeWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
MartinLogan Motion XT F200 |
Focal Aria K2 936K2 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1.25 x 2.4-inch
|
1-inch
|
|
Midrange
|
1 x 6.5-inch |
1 x 6.5-inch |
|
Woofer
|
3 x 8-inch
|
3 x 6.5-inch
|
Motion XT F200 features a 1.25 x 2.4" Folded Motion XT Tweeter, a 6.5" Midrange and 3 x 8" Aluminum Woofer with a Crossover frequency at 300Hz and 2600Hz. On the other hand, the Aria K2 936K2 features a 1" aluminum/magnesium with waveguide inverted dome Tweeter, a 6.5" Midrange and 3 x 6.5" K2 aramid fiber/fiberglass Woofer.
Frequency Response
Motion XT F200 has a frequency range of 27-25k Hz whereas Aria K2 936K2 has a frequency range of 39-28k Hz. With a minimum frequency of 27Hz, the Motion XT F200 can go significantly deeper on the low side and provide stronger bass compared to the Aria K2 936K2's min frequency of 39Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Motion XT F200 is a 4 ohms speaker compared to the Aria K2 936K2 which has a nominal impedance of 8 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the Motion XT F200 can provide this impedance level.
On the other hand, they have the same sensitivity of 92 dBdB.
Sensitivity
Floor-standing Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying
within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.
Motion XT F200 can handle a max power of 600 watts RMS, whereas Aria K2 936K2 has a max power handling value of 300 watts RMS, 300 watts less than the Motion XT F200.
Note that higher power handling does not make a speaker louder: that depends mainly on
sensitivity and impedance. The calculator below shows how loud each of these actually plays
on a real amplifier.
Which plays louder on your amplifier?
Starting with a popular amplifier - change it to the one you own, or any you are
considering, and watch both numbers move.
MartinLogan Motion XT F200
Input Type and Bi-Amping / Bi-Wiring
Motion XT F200 features Custom 5-way bi-wire tool-less binding posts posts which make bi-amping or bi-wiring possible. Aria K2 936K2 has a Binding post which doesn't feature bi-amping/bi-wiring.
MartinLogan Motion XT F200's Custom 5-way bi-wire tool-less binding posts terminals allows Bi-amping or bi-wiring
Focal Aria K2 936K2's Binding post terminals
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 MartinLogan Motion XT F200's and Focal Aria K2 936K2's external dimensions. MartinLogan Motion XT F200 has external dimensions of 1289 x 349 x 419mm (50-3/4inch x 13-3/4inch x 16-1/2inch) whereas Focal Aria K2 936K2 has external dimensions of 1148.0 x 294.0 x 374.0mm (45-3/16 x 11-9/16 x 14-11/16inch).
MartinLogan Motion XT F200 is clearly the larger of the two speakers. Its body is 55mm wider, 141mm taller and 45mm deeper than Focal Aria K2 936K2.
Below you can see the front view size comparison of MartinLogan Motion XT F200 and Focal Aria K2 936K2 in scale.
Comparison image of MartinLogan Motion XT F200 and Focal Aria K2 936K2 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 MartinLogan Motion XT F200 is approximately 1462.3cm2 / 226.7inch2 and base area of the Focal Aria K2 936K2 is approximately 1099.6cm2 / 170.4inch2. The Motion XT F200 requires 33% more surface area than the Aria K2 936K2 which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The MartinLogan Motion XT F200 weighs 39.00kg / 85.8lbs and the Focal Aria K2 936K2 weighs 29.09kg / 64lbs. This makes the Motion XT F200 34% heavier than the Aria K2 936K2.
Here is a comparison of how Motion XT F200 and Aria K2 936K2's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
MartinLogan Motion XT F200
What's in the Box of Focal Aria K2 936K2?
Here are the items that come with the Aria K2 936K2:
- Floorstanding loudspeaker
- Grille
- Base
- 4 Spike feet (pre-installed in base)
- 4 Plastic feet
- 4 Screws
- Allen-key
- Hex-tool
- User Manual
 Max Input Power |
600 watts
vs
300 watts
|
Handle more power from your amplifier |
 Woofer Size |
8 inches
vs
6.5 inches
|
Larger woofer |
|
Low Frequency Response |
27 Hz
vs
39 Hz
|
Generates deeper bass |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Price per pair* |
5498USD
vs
6598USD
|
costs less (*prices may change depending on the seller, location and time) |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
 High Frequency Response |
28k Hz
vs
25k Hz
|
Generates higher frequency |
 Height |
1148mm
vs
1289mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1099cm2
vs
1462cm2
|
Takes less floor space |
| General |
MartinLogan Motion® XT F200 |
Focal Aria K2 936K2 |
| Brand |
MartinLogan |
Focal |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
20-600 watts |
50-300 watts |
| Sensitivity |
92 dB |
92 dB |
| Impedance |
4 ohms |
8 ohms |
| Impedance |
n/a |
2.8 ohms |
| Frequency Response |
27-25k Hz |
39-28k Hz |
Drivers |
|
|
| Woofer Quantity |
3 |
3 |
| Woofer Size |
8" |
6.5" |
| Woofer Composition |
Aluminum |
K2 aramid fiber/fiberglass |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1.25 x 2.4" |
1" |
| Tweeter Type |
Folded Motion XT |
inverted dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
6.5" |
6.5" |
| Crossover Frequency |
300Hz and 2600Hz |
n/a |
| Firing Direction |
bottom |
n/a |
| Suggested Break-in Period |
Allow 72 hours of break-in |
n/a |
Physical Specs |
|
|
| Height |
1289.0mm (50.7") |
1148.0mm (45.2") |
| Width |
349.0mm (13.7") |
294.0mm (11.6") |
| Depth |
419.0mm (16.5") |
374.0mm (14.7") |
| Weight |
39.00kg (85.8lbs) |
29.09kg (64lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood veneer |
MDF/Glass/Leather |
| Available Colors |
Gloss Black, Walnut, and Satin White |
Grey |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |
A generation apart: MartinLogan Motion XT F200 is the newer design, against a 2019 model. Newer is not automatically better, but the older one is more likely to be discounted or near run-out.
| Area | Better | Why |
|---|
| Bass | A | MartinLogan Motion XT F200 digs deeper - 27Hz against 39Hz. |
| Amplifier needs | evenly matched | Similar sensitivity (92dB vs 92dB) - both want much the same power. |
| Amplifier match | B | Focal Aria K2 936K2 is the easier load at 8 ohms; the other is 4 ohms and wants an amplifier rated for it. |
| Headroom | A | MartinLogan Motion XT F200 takes more power (600W vs 300W) - more in hand in a big room. |
| Size | depends | Focal Aria K2 936K2 is easier to place; MartinLogan Motion XT F200 is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | A | MartinLogan Motion XT F200: bi-amping. |
| Price | A | MartinLogan Motion XT F200 is cheaper - $5,498 against $6,598, about 17% less. |
A MartinLogan Motion XT F200 B Focal Aria K2 936K2
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 speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
MartinLogan Motion XT F200 is the easier recommendation: it leads on most of the measured areas and costs less. Take Focal Aria K2 936K2 if its size, looks or fit in your room suit you better. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 39Hz anyway, so judge these on the other rows instead. Match it to your room: we rate MartinLogan Motion XT F200 the better fit for a very large room; elsewhere the two are rated the same.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.