MartinLogan Motion SLM X3 is a 2-way Passive Bass Reflex On-wall speaker by MartinLogan. It was released in 2021. It features a AMT Tweeter and 6 x 4" Aluminium Woofer.
A on-wall speaker with 3 x Folded Motion tweeters and 6 x 4 inch woofers. 93 dB sensitive, 4 ohms, 20-140 W recommended, 120 Hz to 25 kHz. Motion uses MartinLogan's Folded Motion tweeter - a pleated diaphragm that squeezes air rather than pushing it, so it moves far less mass than a dome.
The speaker has a frequency range of 120-25k Hz and a sensitivity of 93 dB. MartinLogan Motion SLM X3 has an MSRP of 1300$.
Room Size Suitability
The size of the room where you plan to use the MartinLogan Motion SLM X3 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Good |
| Small Room | Good |
| Mid-size Room | Average |
| Large Room | Poor |
| Very Large Room | No way |
(* 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.)
MartinLogan's Motion Series of Loudspeakers
Motion SLM X3 is a member of MartinLogan's Motion series of Passive speakers. The Motion range are MartinLogan's popular speakers using the brand's Folded Motion tweeter in conventional cabinets. Below you can see the main specs of these speakers.
See all 10 MartinLogan Motion models compared »
MartinLogan Motion Series Speakers
MartinLogan Motion Series Speakers
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Frequency Response of the MartinLogan Motion SLM X3 Speaker
MartinLogan Motion SLM X3 has a Frequency response range of 120-25k Hz at ±3dB and Power Range of 20-140 watts. With a minimum frequency of 120 Hz, it is hard to expect a strong bass response from Motion SLM X3 so depending on your use case, using a subwoofer will significantly help to widen the response range.
To focus on the subwoofers that are in a similar price range with MartinLogan Motion SLM X3, check out the Powered Subwoofers under $1500. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how Motion SLM X3's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
On-wall Speakers
MartinLogan Motion SLM X3
High Frequency
On-wall Speakers
MartinLogan Motion SLM X3
Crossover frequency of the MartinLogan Motion SLM X3?
The Crossover frequency of the Motion SLM X3 is set to 3,000 Hz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.
Impedance and Sensitivity
MartinLogan Motion SLM X3's nominal impedance level is
4 ohms and has a sensitivity of
93 dB.
Sensitivity
On-wall Speakers
MartinLogan Motion SLM X3
Nominal Impedance of the 4 Ohms means that the MartinLogan Motion SLM X3 is a difficult to drive speaker from nominal Impedance perspective, make sure that you choose an amplifier than can provide 4 Ohms for this speaker.
Many AVRs (audio/video receiver) in the market may have difficulty when the speakers dip below the 4 Ohms levels (this may cause clipping or even physical damage), so we recommend to not pair the MartinLogan Motion SLM X3 with an AVR but use an Integrated Amplifier instead.
Sensitivity
93dB of the MartinLogan Motion SLM X3 is considered a high sensitivity compared to average stereo speaker which makes Motion SLM X3 an easy to drive from Sensitivity perspective. If you are planning to power your speaker with a Tube amp which are generally very low power, the MartinLogan Motion SLM X3 will be a good choice.
Check the amplifiers that are in a similar price range to the MartinLogan Motion SLM X3:
Input Type
Motion SLM X3 features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
MartinLogan Motion SLM X3 External Dimensions and Weight
MartinLogan Motion SLM X3 has external dimensions of (Height x Width x Depth) 6-3/8 x 48-1/16 x 2inch (162.0 x 1220.0 x 51.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of MartinLogan Motion SLM X3 is approximately 622.2cm2 / 96.4inch2.
WeightThe MartinLogan Motion SLM X3 weighs 5.90kg / 13lbs per piece. Here is a comparison of how Motion SLM X3's weight compares with the average, max and min weights in its class.
Weight
All On-wall Speakers
MartinLogan Motion SLM X3
Weight
On-wall Speakers under $1500
MartinLogan Motion SLM X3
Cabinet type and Materials
MartinLogan Motion SLM X3 has a
Bass Reflex type cabinet. Bass Reflex type loudspeakers (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.
Does the MartinLogan Motion SLM X3 come with a Grille?
Motion SLM X3 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
Recommended Accessories
Here is a list of accessories that we think you may need for the MartinLogan Motion SLM X3.
Official Product Page
Official manufacturer's product page for the MartinLogan Motion SLM X3 speaker can be found below:
Official Product Page for MartinLogan Motion SLM X3